Dissertations / Theses on the topic 'City logistic'

The expected economic and social growth, joint with the increase on the demand of services and goods that this will cause, will become an environmental problem (emissions and noise) as well as a logistical problem (congestion) that needs to be solved. The transport sector has to reduce drastically the use of fossil fuels and Sweden’s goal is to achieve a fossil independent vehicle fleet by 2030. It is expected that 2/3 of the traffic volume of trucks in Sweden will be performed along electrified roads. The most efficient way to achieve this is to use electricity and now that the technology to power trucks without the need of huge batteries has been tested and approved, is time to develop the infrastructure needed and study its impact in transportation and logistics. An electric road is planned to be operative around 2020 from Rosersberg logistics hub to Arlanda airport cargo city. The objective is to transfer goods from the logistic area to the freight terminal by the use of electric trucks. It will optimize the transit of logistics flow in the area, reduce emissions and release the traffic pressures on E4 at the same time. Arlanda airport used to have a restriction on the emission rate of all the companies operating inside Arlanda, the emissions of the trucks that drive the cargo outside Arlanda was also taken into account. This means that in order to be below the maximum levels, the high ground transport emissions limited the number of planes that could fly. Affecting therefore the capacity of handling bigger volumes and passengers. So in order to prevent this situation from happening again in the future (more environmental restrictions will appear) the best solution for all the parts involved is to give priority to sustainability in transport planning. The aim of this project is to come up with conclusions and forecasts of the whole transportation network according to the logistics needs, by analysing the economic, environmental and logistic impacts of using the El-road. The result expected is to provide a clearer overall picture of the logistic flows between Rosersberg, Arlanda Airport, Gavle container and nearby locations, such as Stockholm or Uppsala. As well as analyse the possible scenarios that might develop once the El-road is operating. Due to the nature of our data we decided to use qualitative and subjective methods rather than quantitative ones. AHP (Analytic Hierarchy Process, Saaty 1970), will enable us to derive ratio scales from paired comparisons by defining the different criteria (cost, time, operations and sustainability) and assigning values to their respective sub criteria. These values will be assigned by each of the companies working inside Arlanda, since the goal is to define the best possible scenario for them in the future. The other method we will use is the decision tree analysis, this model of decisions and possible consequences that can occur will show a graph of all the variables that must be taken into account while defining the issues that will lead to one scenario or another. We consider it the best method to analyse and show how many facts can affect the final scenario outcome of this project.

Este estudo apresenta critérios para avaliação de condomínios logísticos sob pontos de vista social, ambiental, econômico e técnico-operacional. Para cada um destes critérios são apresentados os diferentes aspectos que os compõem e são sugeridos fatores de ponderação para estimativa do grau de viabilidade de implantação de condomínios logísticos em cidades situadas no entorno de grandes centros urbanos. Em particular, foi considerada a hipótese de implantação de condomínios logísticos na região metropolitana da cidade do Rio de Janeiro, e que se beneficiam em função de atração de demanda pelo porto do Rio. São definidos e classificados os tipos de condomínios e também apresentadas sínteses das estratégias internacionais de implantação de plataformas logísticas. Os critérios propostos para as avaliações estabelecem, para cada condomínio, um grau de viabilidade que pode variar de 0 a 100 por cento, e a aplicação desses critérios permitiu selecionar algumas localizações que obtiveram grau de viabilidade superior a 75 por cento, sendo que valores mais elevados sugerem recomendações de uso. Destacando-se um condomínio já existente no bairro da Pavuna, na cidade do Rio de Janeiro, que atingiu a marca de 92 por cento.
This study presents a discussion of criteria for evaluation in the metropolitan region of the city of Rio de Janeiro and its impacts in order to be reviewed in terms of construction as well as its financial and operational performance. As a way to study, were looked for reference topics and also real enterprises options to compare indicators for development, definition and propose conditions for good performance in this area and scope. Logistics condos can be defined as storage areas in a consolidated or segregated way, using areas that can be shared with companies or used alone to meet demand or provide gains through their use. These centers were developed to provide economies for logistics operators, carriers, industries and retailers, meeting their needs for warehousing, distribution, cargo consolidation and vehicles distribution. By bringing together several sheds with flexibility to segregate spaces in a unique place with security and shared services infrastructure, where companies enjoy a cost-benefit relationship that they would not be able to achieve alone. In addition, it aims to offer services and provide logistical integration, cost reduction in inventories, facilities and processes, as mentioned by DIAS (2013). Logistics condos are also considered as evolution of the Distribution Centers (CDs) and are made up of different complexes of warehouses with different sizes and modules, located in condominiums, where costs, infrastructure are shared, as well as expenses with surveillance and security (Sobreira, 2012). According to DUBKE (2006), a logistics platform is a name given to logistics centers that operate by adding value to the product through a wide variety of services. Another mention is the Integrated Logistics Center (ILC) concept, which brings together a number of functions of transportation, logistics, operational support, and industrial processing. Such ILCs may house intermodal road and rail terminals and logistics platforms capable of carrying out for example stocking, distribution and consolidation operations. Through this concept, it can be concluded that logistics condominiums can be part of logistics platforms as a whole, mainly because they are sheds for the storage part as mentioned.

One of the biggest problems of today is transport, especially in the cities. The transport has many negative effects, like congestions, pollution and others. The solutions of this situation are very hard and they have no integrated methodology. This doctoral thesis has two theoretic objectives: 1. set up new concept of city logistics, which means the integration of several disciplines, important for integrated admission to soluted problems 2. validate the pertinence of simulation in the new koncept of city logistics, created in objective 1 The thesis has also one concrete objektive, which is the validation of effectiveness of one project. The investigated project is removal of the train station in Brno.

BACKGROUND:Interruption of vector-borne transmission of Trypanosoma cruzi remains an unrealized objective in many Latin American countries. The task of vector control is complicated by the emergence of vector insects in urban areas.METHODS:Utilizing data from a large-scale vector control program in Arequipa, Peru, we explored the spatial patterns of infestation by Triatoma infestans in an urban and peri-urban landscape. Multilevel logistic regression was utilized to assess the associations between household infestation and household- and locality-level socio-environmental measures.RESULTS:Of 37,229 households inspected for infestation, 6,982 (18.8%
95% CI: 18.4 - 19.2%) were infested by T. infestans. Eighty clusters of infestation were identified, ranging in area from 0.1 to 68.7 hectares and containing as few as one and as many as 1,139 infested households. Spatial dependence between infested households was significant at distances up to 2,000 meters. Household T. infestans infestation was associated with household- and locality-level factors, including housing density, elevation, land surface temperature, and locality type.CONCLUSIONS:High levels of T. infestans infestation, characterized by spatial heterogeneity, were found across extensive urban and peri-urban areas prior to vector control. Several environmental and social factors, which may directly or indirectly influence the biology and behavior of T. infestans, were associated with infestation. Spatial clustering of infestation in the urban context may both challenge and inform surveillance and control of vector reemergence after insecticide intervention.

Improving Sinkhole Mapping Using LiDAR Data and Assessing Road Infrastructure at Risk in Johnson City, TN. Kingsley Fasesin1, Dr. Ingrid Luffman 1, Dr. Eileen Ernenwein 1 and Dr. Arpita Nandi1 1 Department of Geosciences, College of Arts and Sciences, East Tennessee State University, Johnson City, TN; Abstract Predicting infrastructure damage and economic impact of sinkholes along roadways requires mapping of sinkhole distribution and development of a model to predict future occurrences with high accuracy. The study is carried out to define the distribution of sinkholes in Johnson City, TN and risks they pose to roads in the city. The study made use of a 2.5 ft Digital Elevation Model (DEM) derived from Light Detection and Ranging (LiDAR) data acquired from Tennessee Geospatial clearing house (TNGIS) and an inventory of known sinkholes identified from topographic maps. Depressions were identified using the LiDAR-derived DEM by subtracting a filled-depressions DEM from the original study area DEM. Using a spatial join, mapped sinkholes were matched to depression polygons identified from the LiDAR-derived DEM. For all matched sinkhole-polygon pairs, three indices were calculated: circularity index, area ratio of minimum bounding rectangle, and proximity to train tracks and roads. The dataset was partitioned into training (70%) and validation (30%) subsets, and using the training dataset, thresholds for each index were selected using typical values for known sinkholes. These rules were calibrated using the 30% validation subset, and applied as filters to the remaining unmatched depression polygons to identify likely sinkholes. A portion of these suspected sinkholes were field checked. The future direction of this research is to generate a sinkhole formation model for the study area by examining the relationship between the mapped sinkhole distribution, and previously identified sinkhole formation risk factors. These factors include: proximity to fault lines, groundwater and streams; depth to bedrock; and soil and land cover type. Spatial Logistic Regression analysis will be used for model development, and results will be used to generate a sinkhole susceptibility map which will be overlain on the road network to identify the portions of interstate and state highways at risk of sinkhole destruction.

The main goal of the diploma thesis is to describe and evaluate the form of city logistics and transportation services in New York City and to define related basic problems. The theoratical part focuses on the general background of distribution processes, logistics technologies based on transport and city logistics in general. Then in the practical part there is commented the status and trends in personal, freight transport, distribution and storage of goods in New York region, the largest problems of transportation services in aglomeration and strategies of their solution. The conclusion contains the summary and recommendations.

Postnord, DHL och Schenker är de tre största transportbolagen i Norrköpings stad och utför idag merparten av distributionen av gods. Inom Norrköpings stadskärna levereras varor dagligen till stadens olika gallerior samt butiker innanför promenaderna (norra, södra, östra) och Kungsgatan. Transportbolagen åker i dagsläget med totalt 6 lastbilar och 6 paketbilar för att förse kunder inom Norrköpings stadskärna med gods. Urbanisering och den ständigt växande befolkningsmängden identifieras, av aktörerna, som ett framtida trafikproblem vad gäller privata fordon och godstransportfordon. Idén med citylogistik är att optimera logistik- och transportaktiveter som sker i städer och genom det minska problemen. En potentiell lösning på problemen är samlastning av gods som går in i stadskärnan. Målet med examensarbetet är att undersöka och analysera godstransportsflödet i dagsläget i Norrköpings stad samt att uppskatta potentialen i besparingar/förbättringar för systemet, med samlastning av gods som transporteras in i Norrköpings stadskärna. Syftet med examensarbetet är att förse projektet ”Integrerad ruttplanering och kostnadsdelning inom citylogistik” med detaljerade data om Norrköpings transporter. Syftet är dessutom att undersöka ifall samlastning är en rimlig åtgärd för att erhålla sociala, miljömässiga- och ekonomiska vinster inom städer och urbana områden. För att besvara forskningsfrågor och uppfylla målet samt syftet har metoden bestått av: intervjuer med olika aktörer, litteraturstudie kring tidigare samlastningslösningar, datainsamling genom fältobservationer och bearbetning av sekundärdata från transportbolag samt beräkningar baserade på de data för att påvisa potentialen i besparingar/förbättringar för samlastning av gods i Norrköpings stadskärna. Resultaten visar att sociala- och miljömässiga vinster kan erhållas då samarbete kring samlastning av gods genomförs. Även ekonomiska vinster i form av frigjorda resurser har kunnat erhållas. Samtliga aktörer som intervjuats i Norrköpings stad finner sig positiva till ett framtida samlastningssamarbete och många av aktörerna ser även vikten av att ett sådant samarbete inträffar. Beräkningarna visade att tidseffektivisering, minskande av antalet lastbilar samt förminskning av 𝐶𝑂2-utsläpp kan erhållas då gods inom Norrköpings stadskärna samlastas och distribueras. Examensarbetet presenterar även andra citylogistiklösningar och resultaten från en del av dem. Sammanfattningsvis kan det här examensarbetet fungera som en grund för framtida studier och ett implementerande av citylogistik och ett samlastningssamarbete i Norrköpings stad.

“Vision Zero,” first adopted by Sweden in 1997, is a road safety policy that aims to achieve a transportation system having zero fatalities or serious injuries for all modes of transportation. It takes a proactive approach to road safety system by identifying risk and taking steps to prevent injuries. Historically, traffic related crashes have disproportionately impacted vulnerable communities and system users including people of color, low income individuals, seniors, children, and pedestrians, bicyclists, and transit users (who typically walk to and from public transport). These inequities are addressed in the Vision Zero framework by prioritizing interventions in areas that need safety improvements the most. In 2016, the Alexandria City Council voted unanimously to develop a “Vision Zero” policy and program as a part of its updated transportation master plan. It required an initial equity analysis to assess the impact of traffic crashes on the traditionally underserved communities / groups (groups from at least one of these categories: low-income; minority; elderly; children; limited English proficiency; persons with disabilities; and/or pedestrians/ bicyclists/ transit users). This study combines three different methods to investigate the equity issues regarding traffic safety: 1) descriptive analysis of the spatial pattern of crashes and their relationship with the demographic profiles of neighborhoods at census block group level (for 2010-2014 period); 2) descriptive analysis of the crash trends in Alexandria; and 3) exploratory regression analyses for two different units of analysis (an aggregate regression analysis of crashes at census block group, and a disaggregate regression analysis of the individual level crash reports of traffic crashes). The analysis found that the elderly, school aged children, rail/subway users, and pedestrians had a higher risk of fatalities and severe injuries in traffic crashes. Higher job densities, alcohol impairment, and speeding were significantly related to higher KSI, whereas, smaller block sizes (higher number of street segments per sq. mile area of census block group), higher housing density, and use of safety equipment were related to lower KSI.
Master of Urban and Regional Planning
“Vision Zero,” first adopted by Sweden in 1997, is a road safety policy that aims to achieve a transportation system having zero fatalities or serious injuries for all modes of transportation. It takes a proactive approach to road safety system by identifying risk and taking steps to prevent injuries. Historically, traffic related crashes have disproportionately impacted vulnerable communities and system users including people of color, low income individuals, seniors, children, and pedestrians, bicyclists, and transit users (who typically walk to and from public transport). These inequities are addressed in the Vision Zero framework by prioritizing interventions in areas that need safety improvements the most. In 2016, the Alexandria City Council voted unanimously to develop a “Vision Zero” policy and program as a part of its updated transportation master plan. It required an initial equity analysis to assess the impact of traffic crashes on the traditionally underserved communities / groups (groups from at least one of these categories: low-income; minority; elderly; children; limited English proficiency; persons with disabilities; and/or pedestrians/ bicyclists/ transit users). This study combines three different methods to investigate the equity issues regarding traffic safety: 1) descriptive analysis of the spatial pattern of crashes and their relationship with the demographic profiles of neighborhoods at census block group level (for 2010-2014 period); 2) descriptive analysis of the crash trends in Alexandria; and 3) exploratory regression analyses for two different units of analysis (an aggregate regression analysis of crashes at census block group, and a disaggregate regression analysis of the individual level crash reports of traffic crashes). The analysis found that the elderly, school aged children, rail/subway users, and pedestrians had a higher risk of fatalities and severe injuries in traffic crashes. Higher job densities, alcohol impairment, and speeding were significantly related to higher KSI, whereas, smaller block sizes (higher number of street segments per sq. mile area of census block group), higher housing density, and use of safety equipment were related to lower KSI.

Le transport de marchandises dans les zones urbaines est un sujet important de nos jours. Le transport est une activité vitale pour les villes, mais implique pollution, congestion, accidents. La logistique urbaine vise à optimiser les processus logistiques et de transports urbains en tenant compte des aspects environnementaux et sociaux. Cette thèse traite de cette thématique et fait partie du projet MODUM.MODUM vise à étudier un système de livraison basé sur des centres de distribution urbains. Nous présentons une classification et une analyse des mouvements de marchandises et des problèmes de tournées de véhicules (VRP) associés.La deuxième partie propose une revue complète des travaux de recherche traitant des problème VRP avec excursions multiples (MTVRP). Le MTVRP est une extension du VRP où les véhicules sont autorisés à effectuer plusieurs tournées. Nous proposons une heuristique pour le MTVRP qui est par la suite adaptée pour un problème plus riche, le MTVRP avec fenêtres de temps et dates de disponibilité. Il s'agit d'une variante du MTVRP où à chaque client est associée une fenêtre de temps et à chaque marchandise une date de disponibilité qui représente l'instant où elle devient disponible au dépôt.Par la suite, nous étudions une variante du MTVRP où les marchandises sont classées par types de produits qui ne peuvent pas être transportés dans le même véhicule. Une analyse est effectuée pour montrer l’avantage des tournées multiples pour le problème de dimensionnement des flottes.Enfin, nous décrivons le problème de tournées qui se pose dans MODUM et le simulateur qui est développé pour évaluation du système
Transportation of merchandise in urban areas has become an important nowadays topic. In fact, transportation is a vital activity for each city, but entail pollution, congestion, accidents.City logistics aims at optimizing the whole urban logistics and transportation process, taking into account environmental and social aspects. This thesis, that is part of the MODUM project, finds its location in this area of research. In particular, MODUM aims at studying a delivery system based on City Distribution Centers.We first present a classification and an analysis of urban good movements and routing problems peculiar to metropolitan areas. A second survey proposes a complete collection of articles that has been done on the Multi Trip Vehicle Routing Problem (MTVRP). The MTVRP is an extension of the Vehicle Routing Problem (VRP) where vehicles are allowed to perform several trips.We propose an efficient heuristic for the MTVRP that is, in a subsequent step, adapted to a new routing problem, the MTVRP with Time Windows and Release Dates (MTVRPTWR). It is a variant of the MTVRP where each customer is associated with a time window and each merchandise is associated with a release date that represents the instant it becomes available at the depot.We, then, study a variant of the MTVRP where goods belong to different commodities that cannot be transported at the same time by the same vehicle. An analysis is conducted on the benefits of the multi-trip aspect in fleet dimensioning problems.Finally we describe the complex routing problem that arises in MODUM and the simulator that is developed to evaluate the performances of the system

The ‘City Logistics’ activities are contributing to traffic congestion and accumulating to environmental challenges, such situation has prompted the creation of urban consolidation centre (UCC), as a multimodal logistics park facility in the outskirts. The relocation of business from a city to the outskirts requires the evaluation and assessment of the key factors in order to make the better decisions. However, no relocation decisions evaluation model has been found, neither its application on the case company to find the effects of relocation on the logistics firms. This study is aimed at developing general business relocation model, that can be used by logistics firms, to evaluate the effects of their relocation.  The model is a decision making tool.   Application of the model before the relocation, help’s in decision making. Therefore, this research study focuses on developing a general model involving selected important factors that can be considered by logistics firms to evaluate the effects of relocation. The results for this research were analysed using the qualitative method, predominantly literature review, factors were applied on the case company. The DHL’s relocation scenario from Gävle city centre (Näringen) to the proposed Tolvfors Logistics Park (outskirts), relocation led to transport cost and drive-time reductions, along with efficiency improvements. The evaluation model has been developed, have likewise presented the drivers of relocation, and factors that logistics firms can consider for relocation’s possible outcome.

Diploma thesis indicates on traffic problems that arise not only in the huge world metropolis but increasingly appeal in smaller towns. They cause not only time and money losses but also irreversible environmental damages. This issue represents a big challenge not only for cities, transport companies, logistics service providers but also for each human being in the world. The thesis focuses on the utilization of a relatively new concept called city logistics, which should be the key for improvement of traffic situation in the cities through a higher level of transport organization and its management, cooperation between the parties and the search of new forms of transport, which don't support just the economic part of certain territory, but also brings sustainable development of transport in the future. While some cities try to become familiar only in theory, others have already obtained positive effects of its implementation. To those progressive cities belongs as well Paris to which I paid attention in diploma thesis.

Cílem této práce je podat ucelený výklad o problematice city logistiky v ?klasickém? pojetí zaměřujícím se na optimalizaci zásobovacího procesu ve městě s ohledem na specifické vnější marginální podmínky včetně charakteristiky technologií využívaných v rámci city logistiky a technických požadavků na dopravní prostředky a přepravní jednotky, následně aplikovat city logistiku koncipovanou v poněkud netradičním ?širším? pojetí zahrnujícím nástroje v oblasti nákladní dopravy, dopravy osob, ochrany území a dopravní telematiky do prostředí města Plzně a zhodnotit dosažené úspěchy projektu city logistiky v této západočeské metropoli včetně vymezení problémových oblastí vyžadujících další aktivity, a tím vyvolat potřebnou diskusi na dané téma v prostředí městské a krajské samosprávy za účelem postupného prosazování jednotlivých opatření v praxi.

The construction industry’s world is very complex, competitive and challenging. That means that everyone who is involved needs to be constantly updated and follow the latest technological trends and ideas to be able to work on a viable project by minimizing the problems.  Nevertheless, there are always different complications that arise mainly because there is not much attention given to logistics and logistics solutions. The purpose of this thesis is to identify the major problems in the Swedish construction industry as well as their corresponding logistics solutions applied by different companies. Moreover, this research will try to investigate how the use of the fairly new concept of Construction Consolidation Centers can improve the situation primarily with the material transportation. The current thesis was conducted by investigating the relevant literature and arranging interviews with a few of the many consultant companies working in the construction industry. The outcomes from both investigations are analyzed and compared showing that there are important differences between the theory (literature review) and the reality (interviews) as some of the main problems in real projects do not appear in the current literature. It is also clearly exposed that Construction Consolidation Centers are a game changer to this kind of projects and such a solution is suggested from both sides, while there is high necessity from the companies to emphasize on the logistics and invest more on their logistics solutions.

Background:           City Logistics is experiencing many innovative activities in the recent years. These activities are initiated and enhanced by numerous public and private actors, who jointly form innovative networks.   Purpose:                  The purpose of this thesis is to identify the actors, who jointly form the city logistics network, and determine their contribution towards innovation in these networks.   Method:                  The research is based on an interview study. We conducted interviews with representatives of a variety of city logistics actors. These interviews and additional secondary data were analyzed using content analysis. To illustrate the structure of innovative city logistics networks, we used a combination of systems and network theory.   Conclusion:             The results show that actors from six groups are strongly involved in city logistics innovation. These are policymakers, logistics companies, shippers & receivers, technology providers, research institutions and independent platforms. Actors in innovative city logistics networks show a sufficient level of commitment, but they have different focuses in their innovative activities. The most extensive contributions are made by policymakers and logistics companies. Still, policymakers struggle in their function as coordinators of city logistics.

This study introduces Autonomous Mobile Lockers (AMLs) into the current city logistics network. This new pickup and delivery technology can solve several problems, such as a shortage of parking places in the CBD area, traffic congestion on the roads, the high cost of depot rent, and transportation costs. In the traditional parcel logistics network, couriers perform direct tours to customers to collect and deliver parcels, and at the end of each tour, they need to bring the collected parcels to a designated depot to join the transfer to the hub. The proposed system consists of couriers working with AMLs that visit the couriers in the field and transfer parcels between the couriers and the depot. Couriers can continue their tours without making repeated returns to the depot while the courier retains contact with the customer. At the same time, the AMLs can enlarge the coverage of each depot and allow a reduction in the number of depots, saving on rent. To study the effectiveness of AMLs, we formulate the one-echelon location routing problem (LRP), the two-echelon location routing problem (2E-LRP), and the two-echelon vehicle routing problem (2E-VRP), which optimises the routes of AMLs and couriers as well as the locations of the depots and the stops where AMLs and couriers meet to exchange parcels. As these problems are challenging to solve for large problem instances, we have developed several heuristics and tested these against the Gurobi solver for small problem instances, providing confidence in the quality of the heuristics. The results show the efficiency of the proposed heuristics for large problem instances in terms of solution quality and execution time.

Molteplici studi, portati a termine di recente in Europa ed oltreoceano, hanno focalizzato l’attenzione sulle problematiche indotte dal trasporto merci in ambito urbano e contribuito ad identificarne possibili soluzioni (city logistics). Le aree urbane, dovrebbero idealmente essere luoghi ove abitare, svolgere attività economiche, sociali e ricreative. Esse possono vedere compromessa la loro predisposizione a tali scopi anche a causa del crescente traffico delle merci, il cui trasporto è effettuato principalmente su gomma, per via delle brevi distanze da coprire e delle carenze infrastrutturali. I veicoli commerciali, ad eccezione di quelli di ultima generazione, incidono negativamente sulla qualità dell’ambiente urbano, generando inquinamento atmosferico e acustico. La politica del “just in time”, che prevede l’assenza di magazzini di stoccaggio delle merci, incrementa i movimenti commerciali. Nella presente tesi vengono trattati alcuni aspetti logistici di regolamentazione della sosta e degli accessi per i mezzi di trasporto merci, in grado di rendere più efficiente la distribuzione dei beni, mitigando le problematiche indotte dal traffico e, quindi, salvaguardando la qualità di vita nei centri cittadini.

Molteplici studi, portati a termine di recente in Europa ed oltreoceano, hanno focalizzato l’attenzione sulle problematiche indotte dal trasporto merci in ambito urbano e contribuito ad identificarne possibili soluzioni (city logistics). Le aree urbane, dovrebbero idealmente essere luoghi ove abitare, svolgere attività economiche, sociali e ricreative. Esse possono vedere compromessa la loro predisposizione a tali scopi anche a causa del crescente traffico delle merci, il cui trasporto è effettuato principalmente su gomma, per via delle brevi distanze da coprire e delle carenze infrastrutturali. I veicoli commerciali, ad eccezione di quelli di ultima generazione, incidono negativamente sulla qualità dell’ambiente urbano, generando inquinamento atmosferico e acustico. La politica del “just in time”, che prevede l’assenza di magazzini di stoccaggio delle merci, incrementa i movimenti commerciali. Nella presente tesi vengono trattati alcuni aspetti logistici di regolamentazione della sosta e degli accessi per i mezzi di trasporto merci, in grado di rendere più efficiente la distribuzione dei beni, mitigando le problematiche indotte dal traffico e, quindi, salvaguardando la qualità di vita nei centri cittadini.

The main goal of the diploma thesis is to describe and evaluate the form of city logistics and transportation services in Pardubice -- Hradec Králové area and to define related basic problems. The theoretical part focuses on the general background of city logistics, sustainable development, relation between transportation and environment and possibilities of reduction of negative influences on environment. In the practical part there is analysis of current situation of traffic infrastructure and logistics flows in the area with samples of resolution of the largest problems of transportation services. The conclusion contains the summary and recommendations.

We have conducted a study that is intended to investigate and understand how logistics companies in city logistics handle increased e-commerce challenges and describe what actions they take. To be able to do that, two question formulations have been formulated that goes: “What challenges, caused by an increased e-commerce, exist for logistics companies within city logistics?” and “What are logistics companies doing to address the challenges that exist and that are caused by increased e-commerce?”. Further is the theoretical frame of references presented where challenges and innovations for logistics companies in city logistics is a central point. We have used a qualitative approach, where semi-structured interviews have been used to get the essential information to be able to analyze towards our theoretical frame of references. Headliners that are found in the theoretical frame of references reappear in both the empirical material and the analysis to get a common thread throughout the study. In the analysis, we have our question formulations as headliners to really analyze challenges and innovations. Our study has contributed to an increased understanding of how logistics companies handle an increased e-commerce challenge and describe what actions they take. We have noted that the increased e-commerce has led to challenges for logistics companies in city logistics. We concluded that e-commerce has become more complex with shorter lead time, more but smaller packages and higher demands from consumers have been added, which is considered a challenge for logistics companies. The study shows the main challenges that increased e-commerce brought. The study also shows various innovations and actions by logistics companies within city logistics.
Vi har gjort en studie som är ämnad att undersöka och förstå hur logistikföretag inom citylogistik hanterar ökade e-handelsutmaningar samt beskriva åtgärder de vidtar. För att kunna göra det har vi utgått från två frågeställningar som lyder: “Vilka utmaningar, orsakade av ökad e-handel, finns för logistikföretag inom citylogistik?” och “Vad görlogistikföretag inom citylogistik för att hantera de utmaningar som finns och som är orsakade av ökad e-handel?” Vidare presenteras det teoretiska referensram där utmaningar och innovationer för logistikföretag inom citylogistik är en central del. Vi har använt oss utav ett kvalitativt angreppssätt där vi har genomfört semistrukturerade intervjuer för att få den väsentliga informationen för att kunna analysera gentemot vår teoretiska referensram. Rubriker som finns i den teoretiska referensramen återkommer i både det empiriska materialet och analysen för att få en röd tråd genom hela studien. I analysen har vi däremot våra frågeställningar som huvudrubriker för att verkligen analysera utmaningarna och innovationerna. Vår studie har bidragit med en ökad förståelse hur logistikföretag inom citylogistik hanterar ökad e-handelsutmaningar samt vilka åtgärder de vidtar. Vi har konstaterat att den ökade e-handeln har medfört utmaningar för logistikföretag inom citylogistik. E-handelslogiken har blivit mer komplex på senaste tiden där korta ledtider, fler men mindre paket och högre krav från konsumenterna har tillkommit vilket anses som utmaningar för logistikföretagen. Studien visar på de huvudsakliga utmaningarna som ökad e-handel medfört. Studien visar även på olika innovationer och åtgärder som används av logistikföretag inom citylogistik.

Citylogistik är ett komplext fenomen som innefattar alla resor till, ut ur och inom ett utvalt stadsområde med vägfordon vars uppgift är hämtning eller leverans av varor. Städerna är en stor drivkraft till ett enskilt lands ekonomi och då godstransporter är fundamentala för vår befintliga livsstil är det viktigare än någonsin att godsflödet i städer fungerar för att öka tillgängligheten av produkter och material. Den ökade urbaniseringen i Sverige har ökat efterfrågan på godstransporter inom städerna. Transportaktiviteter leder dock till ökade luftföroreningar, växthusgasutsläpp, buller, visuellt intrång och trafikstockningar som är kostsamt för samhället. I Europa står stadstransporter idag för en fjärdedel av transporternas koldioxidutsläpp och 69% av alla trafikolyckor sker i städer. Transportplanering är en komplicerad uppgift som innefattar många interaktioner mellan olika aktörer. Det finns många olika intressenter längs en försörjningskedja, som alla har olika krav på och uppfattningar av godstransporter. Företag tenderar att bekymra sig mer över hur kunder ska ha tillgång till tjänster och varor snarare än hur varorna ska komma till butiken. Denna studie syftar till att få en fördjupad förståelse för det komplexa logistiksystemet som finns i Skövde för att sedan utforma citylogistik åtgärder som är hållbara och främjar aktörernas intressen. Köpcentrumet Commerce i Skövdes stadskärna erhåller godsleveranser varje dag till över 50 butiker via två lastbryggor som inte har full kapacitet. För att besvara rapportens problemfrågor har mätningar och observationer utförts samt intervjuer och enkätundersökning med de aktörer som berörs inom ramen av detta arbete. Författarna har identifierat en möjlighet att tillgängliggöra kapacitet på en av lastbryggorna genom att bygga en ramp.
City logistics is a complex phenomenon that includes all trips to, out of and within a selected urban area with road vehicles whose task is to collect or deliver goods. The cities are a major driving force for an individual country's economy and, since freight transport is fundamental to our existing lifestyle, it is more important than ever that the flow of goods in cities works to increase the availability of products and materials. The increased urbanization in Sweden has increased the demand for freight transport within the cities. However, transport activities lead to increased air pollution, greenhouse gas emissions, noise, visual intrusion and traffic congestion that is costly to society. Today in Europe, urban transport accounts for a quarter of the transport's carbon dioxide emissions and 69% of all traffic accidents occur in cities. Transport planning is a complicated task that involves many interactions between different stakeholders. There are many different stakeholders along a supply chain, all of which have different requirements and perceptions of freight transport. Companies tend to worry more about how customers should have access to services and products rather than how the products should be delivered. This study aims to gain a deeper understanding of the complex logistics system that exists in Skövde in order to design city logistics initiative that are sustainable and promote the interests of the stakeholders. Commerce, the city mall of Skövde receives deliveries of goods every day to over 50 stores through two loading docks with limited capacity. To answer the report's problem questions, measurements and observations have been carried out, as well as interviews and questionnaires with the actors involved within the framework of this work. The authors have identified an opportunity to make capacity available on one of the loading docks by building a ramp.

Master of Agribusiness
Department of Agricultural Economics
Brian C. Briggeman
Garden City Co-op, Inc. is a farm cooperative in Southwest Kansas. It provides marketing and storage of grain, fertilizer, crop protection products, seed, and petroleum to both member and non-member accounts. The cooperative also operates a transportation company called Western Transport. Western Transport provides transportation of anhydrous ammonia (NH3), liquid fertilizer (32-0-0 or 10-34-0), diesel, gasoline, and propane utilizing semi-tractors and trailers to Garden City Co-op, Inc. as well as to other agribusinesses in the region. The purpose of this thesis is to integrate and optimize the supply chain strategies for the cooperative’s fertilizer and petroleum products as it relates to storage and transportation of those commodities. Utilizing the framework of an aggregate production plan, a model is constructed to minimize costs associated with inventory holding, net storage asset depreciation after tax savings, net transportation asset depreciation after tax savings, labor, operations, and freight. By varying the quantities of petroleum and fertilizer the cooperative purchases, sells, and stores each month over a one-year period, an optimum mix of storage and transportation assets is determined. Two different demand scenarios are evaluated that relate to demand during a drought year versus demand during a non-drought year. Also, different model scenarios include varying beginning period inventory and ending period inventory to stress transportation assets versus storage assets. The model is optimized using a genetic algorithm solver in the software program Evolver produced by Palisade Corporation. Results of the optimization provided two feasible strategies for the cooperative. By continuing services to non-member accounts, there was a greater investment placed on transportation. Investments included additional trucks, NH3 trailers, petroleum trailers, and drivers. The strategy favored a just-in-time inventory approach versus inventory smoothing with storage. When discontinuing services to non-member accounts, investment between storage and transportation assets were relatively equal. The model favored a reduction in NH3 trailers, liquid fertilizer trailers, trucks, and drivers. However, additional storage was necessary as well as petroleum trailers. The scenario favored an inventory smoothing approach across the model year.

Tese (doutorado) - Universidade Federal de Santa Catarina, Centro Tecnológico. Programa de Pós-Graduação em Engenharia de Produção.
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Não é novo o conflito causado pela movimentação de cargas no espaço urbano. Porém, muitas vezes, esse assunto fora deixado de lado pelo fato de existirem outras prioridades, mais voltadas ao transporte coletivo e à circulação em geral. Isso pode ser constatado quando se compara o número de publicações científicas entre os temas. Mas, devido à crescente necessidade e ao aumento de tráfego dessas cargas, sobretudo nas áreas centrais urbanas, o tema "carga urbana" vem assumido papel de destaque nas propostas de melhorias da qualidade ambiental desses centros. Assim, com o intuito de promover a mobilidade urbana com vistas à sustentabilidade do setor transportes, surgem novas propostas de arranjos das formas de entregas nas cidades como meio de solucionar os transtornos dessa circulação de mercadorias (seja pela intrusão visual, poluição sonora, aumento do número de emissões etc). Cinco "áreas-chave" podem ser identificadas como estratégias em transportes, das quais se podem esperar ganhos ambientais e de competitividade para as companhias envolvidas no processo de movimentações de carga: 1) motores menos poluentes, 2) treinamento de pessoal (motoristas), 3) adoção de meios de transportes ambientalmente mais favoráveis, 4) redução do número de veículos circulando e 5) o emprego dos conceitos de city logistics. Esse trabalho analisou os benefícios advindos do emprego dos conceitos em city logistics na melhoria do ambiente urbano para uma realidade nacional, estudando-se o comportamento da área central de Florianópolis numa aplicação. Estimaram-se os custos envolvidos (mão-de-obra, operação, instalações etc.) para a atual realidade, comparando-os, posteriormente, à outra, hipotética, na qual os conceitos de city logistics se fizeram presentes. Bons resultados, tanto do ponto de vista ambiental (dada a redução do número emissões e de veículos), quanto de competitividade (custos em geral), puderam ser observados, ratificando e estimulando o uso desse tipo de conceito.

La tesi tratta il concetto di City Logistics ovvero come avvengono gli spostamenti delle merci nelle città. La struttura della tesi comprende quattro capitoli: si discute inizialmente della situazione italiana dei trasporti, il ruolo dell'Agenzia delle dogane e dell'importanza che ha assunto il trasporto intermodale negli ultimi anni nel nostro Paese; successivamente si spiega cosa è previsto anche a livello europeo. Si passa poi alla discussione dell'ampio tema della Smart City, la quale, per essere definita tale, deve presentare anche una mobilità "intelligente" (Smart Mobility). Con il terzo capitolo si introduce il concetto di ultimo miglio della merce, tema collegato al fenomeno della diffusione del commercio elettronico che non ha fatto altro che incrementare sempre più le consegne. Di fronte a delle conseguenze molto positive in termini commerciali, ne sono soggiunte di negative per quel che si riferisce all'inquinamento atmosferico, acustico e alla congestione. Ecco perchè, dopo aver discusso delle principali problematiche che si son dovute affrontare negli ultimi anni, vengono esposte una serie di alternative per gestire il trasporto in modo sostenibile.Vengono infine descritte le soluzioni per il raggiungimento di un ultimo miglio sostenibile ed alcune delle forme più innovative di mobilità. Infine, l'ultimo capitolo presenta i casi studio più interessanti tra cui il caso di CityPorto della città di Padova e alcuni casi a livello europeo ed internazionale.

Lastbilstransporter står för majoriteten av alla transporter som sker i dagsläget inom den kommunala sektorn i Sverige. Dessa transporter sker direkt från leverantör till kund utan mellanhänder. Detta resulterar i ett stort antal transporter inom städer och ökade mängder utsläpp. Denna rapport har för avsikt att undersöka, hur en kommun med cirka 70 000 invånare kan minska koldioxidutsläppen från sitt transportarbete, och fortfarande ge lönsamhet genom att använda city logistik. Rapporten tar upp begreppet city logistik och hur detta används som verktyg inom transportsektorn. Den belyser även utsläppsmängder från olika drivmedelsval samt de socioekonomiska hindren som finns inom transportverksamheten gällande miljöfrågor.Metoden är en fallstudie, baserad på intervjuer med berörda parter i Sandviken och Gävle, som besitter positioner inom verksamheten där arbetet med samlastningscentraler utförs. Vidare har organisationsdokument med tre övriga kommuner som har utfört liknande satsningar med samlastningscentraler analyserats.Resultatet visar att alla kommuner som har satt upp liknande samlastningscentraler, har kunnat observera minskningar av sina koldioxidutsläpp på olika nivåer. De har även uppmärksammat positiva fördelar vid valet av HVO100 som drivmedel för logistiken inom städer.Slutsatsen visar att city logistik kan användas effektivt av kommunala verksamheter för att både minska koldioxidutsläpp och förbättra sin verksamhet i form av säkerhet, ekonomi, verksamhetsplanering och miljökrav mot leverantörer samt förbättrad arbetsmiljö.
Truck transports represent majority of all transports within the municipal sector in Sweden. Most of these transports are directly from the suppliers to the customers. This results in a large number of vehicles within the city center and increase amounts of carbon dioxide emissions. This thesis, therefore, aims to investigate how a municipality with about 70 000 inhabitants can reduce their carbon dioxide emissions from their transports, and still maintain profitability by using city logistics. The thesis discusses the concept city logistics and how the method is used within the transport sector. Furthermore, it illustrates pollution from different fuel options and the socioeconomic hindrances that exist within the transport operations regarding environmental issues. Case study is used as a method, based on interviews with concerned parties, which hold positions within the organizations where they work with, or plan regarding city logistics from the municipalities of Sandviken and Gävle. Furthermore, analysis has been done on organizational documents with three municipalities that have performed similar ventures. The results show that all municipalities that have implemented city logistics have experienced decrease in carbon dioxide emissions on different levels. They also observed benefits regarding the choice of HVO100 as fuel for the logistics within the cities. The conclusion shows that city logistics can be used effectively in municipality operations to both lower their carbon dioxide pollution, as well as improve work safety, economy, operational planning, environmental requirements on their suppliers and increased work environment.

V dané práci jsem se zaměřil na definovaní principů a odlišností využívaní logistické koncepce v řízení zbožových toků ve velkých městech, které by mohly být užitečné v případě Moskvy a jak by bylo možné lépe vyřešit dopravní obsluhu města. Určit způsoby využívaní logistiky při formovaní infrastruktury města pomoci organizaci dopravy diky různým distribučním modelům. Proanalyzovat efektivnost a zjistit hlavní problémy moskevské logistiky. Identifikovat potřeby města a zahrnout logistická řešení do urbanistické a územní koncepce jeho rozvoje a do systému městské nákladní dopravy.

Ökad urbaniseringen och ett annalkande klimathot skapar ett behov av miljövänlig kollektivtrafik. El är ett drivmedel som är på frammarsch. Det finns dock frågor ekonomi och hur praktiska lösningar ska vara utformade. Grundfrågeställningen för detta arbete har varit huruvida en övergång är möjlig att genomföra till 2022. Även de generella möjligheterna, förutsättningarna och konsekvenserna för en övergång till helt eldrivna bussar i Stockholms innerstad undersökts. Slutsatsen har dragits att det rent tekniskt är möjligt att genomföra en övergång till år 2022. Fordons- och batteriteknik finns. Det innebär dock att det kommer uppstå vissa frågor. Bland annat är eldrivna bussar mindre flexibla. Övergången kommer innebära stora kostnader som på sikt kan visa sig lönsamt då eldrift är ett billigare drivmedel. De hinder som finns för en övergång är bland annat de nuvarande trafikavtalen och otydlighet kring laddinfrastrukturen. En övergång kommer leda till positiva miljökonsekvenser såsom minskade koldioxidutsläpp och minskat buller.

To distribute goods to customers in urban areas is necessary to support the economic and social development in the cities, but has consequences that affect both residents of cities as well as the environment. The environmental effects of these types of transport involves not only the emissions of various pollutants, but also an increased noise level inside the cities. Many companies and organizations are working hard to change the distribution pattern to streamline transport in the urban area, while environmental impact is reduced. This is in line with what is called the City Logistics. The purpose of this thesis is to create a method for describing and measuring a given transport solution in order to compare it with an altered transport solution to achieve a more sustainable development. To construct a method, you have to first find out which previous methods and models are available. In our case, we found three specific models that we considered appropriate to study in its entirety and see whether these would fit for what we wanted to measure. What we found in these models is that it does not measure exactly what we intended to measure, some elements from the different models could be embraced and used as we supplemented with other aspects such as the environmental aspect. The environmental aspect is something that we believe that the models presented in the literature did not take into account. However unveiled the rest of the literature the importance of working to reduce emissions, since the focus of many companies has been to streamline production processes and reduce the effects of these so have environmental impacts from transportation have been overlooked. The models from the literature also had a holistic view of the entire supply chain, from incoming material to production, storage and distribution. We found that a lack of models that measure only the distribution from the distribution centers. Our method gives the user a picture of the traffic situation as it can then be compared with the new outcome at the next measurement. The method that we have developed in this thesis is meant to be used as a tool for annual monitoring of transport operations to measure and make changes, if any patterns and trends can be detected. Sandviken is used as case studies for this thesis, in order to test the method and to draw conclusions about how the method works.
Att distribuera varor till kunder i tätorter är nödvändigt för att stödja den ekonomiska och sociala utvecklingen i städerna men medför konsekvenser som dels påverkar invånare i städer såväl som miljön. Miljöeffekterna av dessa typer av transporter involverar inte enbart utsläpp av olika föroreningar utan även en förhöjd bullernivå inne i städerna. Många företag och organisationer arbetar hårt med att förändra distributionsmönstret för att kunna effektivisera transporter inom tätbebyggt område samtidigt som miljöeffekter skall reduceras. Detta ligger i linje med det som kallas City logistik. Syftet med arbetet är att skapa en metod för att beskriva och mäta en given transportlösning i syfte att kunna jämföra den med en förändrad transportlösning för att uppnå en mer hållbar utveckling. För att konstruera en metod så måste man först ta reda på vilka tidigare metoder och modeller som finns. I vårt fall så fann vi tre specifika modeller som vi ansåg lämpliga att studera i sin helhet och se huruvida dessa skulle passa för det vi ville mäta. Det vi konstaterade i dessa modeller är att det inte mäter exakt det vi syftar till att mäta, vissa delar från de olika modellerna kunde anammas och användas samtidigt som vi kompletterade med andra aspekter som exempelvis miljöaspekten. Miljöaspekten är något som vi anser att de modeller som presenterades i litteraturen inte tog med i beräkningen. Däremot presenterade den övriga litteraturen vikten av att arbeta med att minska utsläppen, eftersom fokus hos många företag har varit att effektivisera produktionsprocesserna och minska effekterna från dessa så har miljöeffekterna från transporterna hamnat i skymundan. De färdiga modellerna hade också en helhetssyn på hela försörjelsekedjan, från inkommande material till produktion, lagring och distribution. Vi fann där en brist på modeller som mäter endast distribution från distributionscentral.  Vår metod ger användaren en bild av trafiksituationen som den sedan kan jämföra med det nya utfallet vid nästa mätning. Metoden som vi har tagit fram i detta examensarbete är tänkt att kunna användas som ett verktyg vid årlig uppföljning av verksamhetens transporter för att mäta och se förändringar, eventuella mönster och trender kan upptäckas. Sandvikens kommun används som case för i detta examensarbete, för att kunna testa metoden och kunna dra slutsatser om hur den metoden fungerar.

För att skapa levande stadskärnor där människor trivs och vill vistas, behöver godstransporter förse stadskärnornas verksamheter med varor. Dessa urbana godstransporter leder dock till ett flertal negativa effekter för både lönsamheten, människan och planeten. Syftet med denna fallstudie är följaktligen att bidra till skapandet av en mer hållbar citylogistik, där flödet av godstransporter in till, inom samt ut ur Skövdes stadskärna förbättras utifrån både ett intressent- och hållbarhetsperspektiv. Studien undersöker dessutom vilka problem och utmaningar som finns, samt vilka intressekonflikter som kan uppstå vid skapandet av en hållbar citylogistik. I den teoretiska referensramen presenteras innebörden av en hållbar citylogistik samt vilka intressenter och aktörer som är involverade i skapandet av en hållbar citylogistik. De urbana godstransporternas negativa effekter på stadsmiljön redovisas sedan ur ett socialt, ekonomiskt och miljömässigt perspektiv, vilket ligger till grund för de teoretiska förbättringsförslagen. Förbättringsförslagen utgår från att de bör gynna så många intressenter som möjligt för att ses som trovärdiga, samt leda till ett förbättrat flöde av godstransporter in till, inom samt ut ur Skövdes stadskärna. För att studera problematiken i Skövdes stadskärna utifrån olika intressenters perspektiv består den empiriska datainsamlingen av en kombinerad metodansats. Denna datainsamling innehåller således en direkt observation och insamling av kvantitativa data över hur godstransporter rör sig i Skövdes stadskärna, ett flertal intervjuer med både distributörer och godsmottagare, samt en genomförd enkätstudie riktad mot centrumbesökare i Skövdes stadskärna. Varje intressentgrupp har även fått möjligheten att rangordna de urbana godstransporternas negativa effekter utifrån vad de ansåg var mer respektive mindre viktigt vid skapandet av en hållbar citylogistik i Skövde för att bidra till en hållbar stadskärna. Rapportens analys baseras på framtagna förbättringsförslag samt intressentgruppernas syn på en hållbar citylogistik. Detta för att komma fram till hur flödet av godstransporter i Skövdes stadskärna kan förbättras ur ett hållbarhetsperspektiv för att gynna flera olika intressenter. Resultatet innehåller således fyra rekommenderade förbättringsförslag som anses vara rimliga att implementera i Skövdes stadskärna inom en uppskattad tidshorisont.
In order to create an attractive urban centre where people thrive, freight transport needs to provide the urban centre businesses with deliveries. However, these urban freight transports have several negative effects on profitability, people and the planet. The aim of this case study is therefore to create a more sustainable city logistics, where the flow of freight transports into, within and out of Skövde's urban centre will be improved from both a stakeholder and sustainability perspective. The study also considers the existing problems and challenges, and what conflicts of interest can arise, in the creation of a sustainable city logistics. The theoretical framework presents the content of a sustainable city logistics and which stakeholders and actors are involved in the creation of a sustainable city logistics. Later the negative impacts of urban freight transport are described from a social, economic and environmental perspective, which forms the basis for the theoretical improvement proposals. The proposals for improvement should benefit as many stakeholders as possible in order to be credible, and improve the flow of freight transport into, within and out of Skövde's urban centre. In order to study the problems in Skövde's urban centre from the perspective of different stakeholders, the empirical data collection consists of a combined research methodology. The data collection contains a direct observation and quantitative data considering the movement of freight transport in Skövde's urban centre. Furthermore, the study contains surveys and interviews with distributors and receivers in Skövde's urban centre. Each stakeholder has also been given the opportunity to rank which negative impacts of urban freight transport they considered to be more or less important in the creation of a sustainable city logistics in Skövde. The analysis is based on both proposals for improvement and the stakeholders' perspective on sustainable city logistics to find out how the flow of freight transport in Skövde's urban centre can be improved from a sustainability perspective in order to benefit several stakeholders. The result contains four recommended improvement proposals that are considered reasonable to implement in Skövde's urban centre within an estimated time horizon.

The construction industry is similar to other manufacturing industries. Aproduction is made up of several small moments and the final product ariseswhen all these steps are completed. Each one of these operations is equallyimportant and increased efficiency is required at all stages. An oftenforgotten step when discussing efficiency in the construction industry is the logisticprocess.The main problems which emerge, when increasing the efficiency of logisticswithin a city centre, are the location itself, the required close collaborationbetween different actors and the industry’s unwillingness to change itscurrent habits. These problems are relevant as they not only address theconcrete problem of a congested inner city but also handle an abstractproblem which is the attitudes and relationships within the constructionindustry. If these problems were tackled, a more structured industry could arise withadditional economical benefits for the entire industry.The aim is to acquire a more efficient and effective logistic process byreducing the number of transports as well as increasing the time efficiency,standard and service of the required transports. The constituent for thisreport is Skanska AB and Uppsala University.The study consists of an in depth study of literature, as well as an analysis ofprevious executed projects and interviews with different actors within theconstruction industry. The results describe the answers given by each actorand a comparison is made with the literature study.The main conclusions of the study are that without collaboration and therightful incentives a development of the logistics process within the industry is notlikely to happen. In addition to the conclusion some suggestions for changes towardsimprovement are recognized.

La logística urbana intel·ligent constitueix un factor crucial en la creació de sistemes de transport urbà eficients i sostenibles. Entre altres factors, aquests sistemes es centren en la incorporació de dades en temps real i en la creació de models de negoci col·laboratius en el transport urbà de mercaderies, considerant l’augment dels habitants en les ciutats, la creixent complexitat de les demandes dels clients i els mercats altament competitius. Això permet als que planifiquen el transport minimitzar els costos monetaris i ambientals del transport de mercaderies a les àrees metropolitanes. Molts problemes de presa de decisions en aquest context es poden formular com a problemes d’optimació combinatòria. Tot i que hi ha diferents enfocaments de resolució exacta per a trobar solucions òptimes a aquests problemes, la seva complexitat i grandària, a més de la necessitat de prendre decisions instantànies pel que fa a l’encaminament de vehicles, la programació o la situació d’instal·lacions, fa que aquestes metodologies no s’apliquin a la pràctica. A causa de la seva capacitat per a trobar solucions pseudoòptimes en gairebé temps real, els algorismes metaheurístics reben una atenció creixent dels investigadors i professionals com a alternatives eficients i fiables per a resoldre nombrosos problemes d’optimació en la creació de la logística de les ciutats intel·ligents. Malgrat el seu èxit, les tècniques metaheurístiques tradicionals no representen plenament la complexitat dels sistemes més realistes. En assumir entrades (inputs) i restriccions de problemes deterministes, la incertesa i el dinamisme experimentats en els escenaris de transport urbà queden sense explicar. Els algorismes simheurístics persegueixen superar aquests inconvenients mitjançant la integració de qualsevol tipus de simulació en processos metaheurístics per a explicar la incertesa inherent a la majoria de les aplicacions de la vida real. Aquesta tesi defineix i investiga l’ús d’algorismes simheurístics com el mètode més adequat per a resoldre problemes d’optimació derivats de la logística de les ciutats. Alguns algorismes simheurístics s’apliquen a una sèrie de problemes complexos, com la recollida de residus urbans, els problemes de disseny de la cadena de subministrament integrada i els models de transport innovadors relacionats amb la col·laboració horitzontal entre els socis de la cadena de subministrament. A més de les discussions metodològiques i la comparació d’algorismes desenvolupats amb els referents de la bibliografia acadèmica, es mostra l’aplicabilitat i l’eficiència dels algorismes simheurístics en diferents casos de gran escala.
Las actividades de logística en ciudades inteligentes constituyen un factor crucial en la creación de sistemas de transporte urbano eficientes y sostenibles. Entre otros factores, estos sistemas se centran en la incorporación de datos en tiempo real y la creación de modelos empresariales colaborativos en el transporte urbano de mercancías, al tiempo que consideran el aumento del número de habitantes en las ciudades, la creciente complejidad de las demandas de los clientes y los mercados altamente competitivos. Esto permite minimizar los costes monetarios y ambientales del transporte de mercancías en las áreas metropolitanas. Muchos de los problemas de toma de decisiones en este contexto se pueden formular como problemas de optimización combinatoria. Si bien existen diferentes enfoques de resolución exacta para encontrar soluciones óptimas a tales problemas, su complejidad y tamaño, además de la necesidad de tomar decisiones instantáneas con respecto al enrutamiento, la programación o la ubicación de las instalaciones, hacen que dichas metodologías sean inaplicables en la práctica. Debido a su capacidad para encontrar soluciones pseudoóptimas casi en tiempo real, los algoritmos metaheurísticos reciben cada vez más atención por parte de investigadores y profesionales como alternativas eficientes y fiables para resolver numerosos problemas de optimización en la creación de la logística de ciudades inteligentes. A pesar de su éxito, las técnicas metaheurísticas tradicionales no representan completamente la complejidad de los sistemas más realistas. Al asumir insumos y restricciones de problemas deterministas, se ignora la incertidumbre y el dinamismo experimentados en los escenarios de transporte urbano. Los algoritmos simheurísticos persiguen superar estos inconvenientes integrando cualquier tipo de simulación en procesos metaheurísticos con el fin de considerar la incertidumbre inherente en la mayoría de las aplicaciones de la vida real. Esta tesis define e investiga el uso de algoritmos simheurísticos como método adecuado para resolver problemas de optimización que surgen en la logística de ciudades inteligentes. Se aplican algoritmos simheurísticos a una variedad de problemas complejos, incluyendo la recolección de residuos urbanos, problemas de diseño de la cadena de suministro integrada y modelos de transporte innovadores relacionados con la colaboración horizontal entre los socios de la cadena de suministro. Además de las discusiones metodológicas y la comparación de los algoritmos desarrollados con los de referencia de la bibliografía académica, se muestra la aplicabilidad y la eficiencia de los algoritmos simheurísticos en diferentes estudios de casos a gran escala.
Smart city logistics are a crucial factor in the creation of efficient and sustainable urban transportation systems. Among other factors, they focus on incorporating real-time data and creating collaborative business models in urban freight transportation concepts, whilst also considering rising urban population numbers, increasingly complex customer demands, and highly competitive markets. This allows transportation planners to minimize the monetary and environmental costs of freight transportation in metropolitan areas. Many decision-making problems faced in this context can be formulated as combinatorial optimization problems. While different exact solving approaches exist to find optimal solutions to such problems, their complexity and size, in addition to the need for instantaneous decision-making regarding vehicle routing, scheduling, or facility location, make such methodologies inapplicable in practice. Due to their ability to find pseudo-optimal solutions in almost real time, metaheuristic algorithms have received increasing attention from researchers and practitioners as efficient and reliable alternatives in solving numerous optimization problems in the creation of smart city logistics. Despite their success, traditional metaheuristic techniques fail to fully represent the complexity of most realistic systems. By assuming deterministic problem inputs and constraints, the uncertainty and dynamism experienced in urban transportation scenarios are left unaccounted for. Simheuristic frameworks try to overcome these drawbacks by integrating any type of simulation into metaheuristic-driven processes to account for the inherent uncertainty in most real-life applications. This thesis defines and investigates the use of simheuristics as a method of first resort for solving optimization problems arising in smart city logistics concepts. Simheuristic algorithms are applied to a range of complex problem settings including urban waste collection, integrated supply chain design, and innovative transportation models related to horizontal collaboration among supply chain partners. In addition to methodological discussions and the comparison of developed algorithms to state-of-the-art benchmarks found in the academic literature, the applicability and efficiency of simheuristic frameworks in different large-scaled case studies are shown.

"Submitted in partial fulfillment of the requirements for the degree of Master of Business Administration from the Naval Postgraduate School, December 2007."
Advisor(s): Rendon, Rene ; Petross, Diana. "December 2007." "MBA professional report"--Cover. Description based on title screen as viewed on January 10, 2008. Includes bibliographical references (p. 85-87). Also available in print.

MBA Professional Report
This paper assesses the process capabilities and competencies of Air Force Material Command's (AFMC) Air Logistics Center (ALC) at Tinker AFB, OK. The assessment uses a cross-sectional questionnaire covering contracting processes and procedures. The purpose of this study is to analyze the ALCs contracting processes and procedures to better establish a baseline for contract management maturity. Using the Contract Management Maturity Model (CMMM) and its assessment tool, this model will be used to identify the ALC's weak as well as strong contract management processes, and provide recommendations for improving the maturity of these processes. Additionally, the Learning Organization Assessment model is used to determine which characteristics of a learning organization the ALC possess. The results of these assessments will be used to determine any correlation between the two models and recommend areas for organizational improvement.

Optimizing city logistics is a topic of great importance for big cities today. Even though the environmental- and economical consequences of the increasing goods transportation fleet has been present for quite some time, actions from affected stakeholders has not been taken until just recently.  In this brief 9 week project the aim has been to,  from a design point-of-view, in this complex topic, give a suggestion and raise a discussion onto how goods transportation in cities can be made in the future.  The basic idea is to get the consignments as close to the consignees and their travel patterns as possible. Public transportation networks are an existing grid where people are moving around and can potentially be used for combined transport of goods and people. The outcome of this concept is focusing on light parcel delivery towards private consignees, due to the increasing e-commerce trend. By using small transporter vehicles connected to buses, light parcels can be distributed throughout a city and easily accessible for consignees at the bus stops.  The transporter vehicle developed through this project aims to conceptualize connectivity and integration between mobility and parcel delivery services, to ease the every day life of urban citizens as well as decrease the environmental- and economical impacts which the distribution vehicle-fleet of today entails.  The design of the transporter vehicle is an interpretation of how a autonomous distribution vehicle can look like in a future city environment where the integration of public-utility-vehicles is of greater importance.

The urban network is a highly dynamic system. Thus, a modern and efficient fleet management in urban areas should account for dynamics of traffic conditions, variability in travel times, changes in demand and fleet availability. All these factors significantly affect the distribution of goods and the provision of services. As a consequence, the freight operations optimizing approaches should be based on the time-dependent travel time estimates rather than on the average static values commonly employed as input data. Proficient dynamic fleet management decisions need to take into consideration all the factors conditioning the addressed problem. Hence, the customers’ requests and service conditions (demands, time windows, etc.), operational conditions of the employed fleet (vehicles’ availability, status, positions, current occupancy of the carriage space, etc.) and traffic conditions need to be reckoned with. This information can be provided in the real-time fashion and at an affordable price by the ICT applications and tools such as: ATIS, GPS, GPRS or other. Instead of relying exclusively on the experience of a dispatcher, it is effective to base the freight management decisions on information provided by a professional Decision Support System facilitating the consideration of all the factors conditioning the addressed issue. The objective of the present thesis is to propose, implement and computationally test, on the basis of a simulation, the architecture of a Decision Support System for real-time freight management able of accounting for all the dynamic factors mentioned above. Its design is based on integration of a selected pickup and delivery vehicle routing model and dynamic traffic simulation models, whose purpose is to carefully emulate the evolving traffic conditions. The optimal dynamic routing and scheduling of a vehicle fleet is obtained due to dynamic modifications of the current routing and scheduling plan on the basis of the recently revealed information conditioning the addressed problem. The obtained results of computational experiments show that the performance of freight fleet strongly depends on the traffic information used to create the routing and scheduling plan. Due to the special character of transport operations performed in metropolitan areas it is possible that not all the scheduled customers would be served, although a feasible initial solution is created on the basis of the historical travel times’ data. Hence, there is a need to implement real-time rerouting strategies allowing modifications of the original routes in order to feasibly fulfil the routing tasks. In addition, the tighter the constraints specifying the customers’ time windows and the higher the number of dynamically appearing requests, the higher the cost of the performance and the level of utilization of the freight fleet.
La red urbana es un sistema altamente dinámico. Por lo tanto, la gestión moderna y eficiente de la flota en las zonas urbanas debe tener en cuenta la dinámica de las condiciones del tráfico, la variabilidad en los tiempos de viaje y los cambios en la disponibilidad de la demanda y de la flota, ya que afectan de manera significativa en la distribución de bienes y la prestación de servicios. Como consecuencia, los enfoques para optimizar las operaciones de carga deben basarse en las estimaciones de los tiempos de viaje dependientes del tiempo y no en los valores medios estáticos comúnmente empleados como datos de entrada. Las decisiones competentes de gestión dinámica de las flotas necesitan tener en cuenta todos los factores que condicionan el problema abordado. Por lo tanto, hay que considerar las características de las peticiones y las condiciones de servicio de los clientes (demanda, ventanas de tiempo, etc.), las condiciones operacionales de la flota empleada (disponibilidad de los vehículos, estatus, ubicación, ocupación actual del espacio de transporte, etc.) y las condiciones de tráfico. Esta información puede ser proporcionada en tiempo real a un precio asequible por las aplicaciones de las TIC y herramientas tales como: ATIS, GPS, GPRS u otros. En lugar de confiar exclusivamente en la experiencia de un distribuidor, también sería correcto basar las decisiones de gestión de transporte de mercancías en la información proporcionada por un sistema profesional de apoyo a la toma de decisiones que facilita la consideración de todos los factores que condicionan el problema abordado. El objetivo de esta tesis es proponer, implementar y validar computacionalmente en base a la simulación, la arquitectura de un Sistema de Apoyo a la Toma de Decisiones para la gestión de transporte de mercancías en tiempo real capaz de considerar todos los factores dinámicos previamente mencionados. Su diseño se basa en la integración de un modelo seleccionado de rutas de vehículos con recogida y entrega y modelos de simulación de tráfico dinámicos cuyo propósito es emular detalladamente las condiciones de tráfico que cambian con el paso del tiempo. Las rutas y los horarios dinámicos óptimos para una flota de vehículos que transporta mercancías se obtienen de las modificaciones dinámicas de un plan actual de rutas y horarios en base a la nueva información recibida que condiciona el problema abordado. Los resultados obtenidos de los experimentos computacionales demuestran que el rendimiento de la flota de transporte de mercancías depende en gran medida de la información de tráfico utilizada para crear el plan de rutas y los horarios. Debido al carácter especial de las operaciones de transporte realizadas en las áreas metropolitanas, a pesar de una solución inicial factible que se crea sobre la base de los datos históricos de los tiempos de viaje, es posible que no todos los clientes sean servidos. Por lo tanto, hay una necesidad de implementar estrategias de cambios de rutas en tiempo real, que permiten modificar las rutas originales con el fin de cumplir las tareas de enrutamiento viables. Además, más estrictas son las limitaciones que especifican las ventanas del tiempo de los clientes y más alto es el número de solicitudes de servicio que aparecen de forma dinámica, mayor será el coste final de las prestaciones del servicio y el nivel de utilización de la flota de transporte de mercancías.

Urban Consolidation Centres (UCCs) are often conceived as an enabler to alleviate negative effects associated with distribution of goods in cities, such as traffic congestion and hazardous emissions. UCCs not only have the potential to reduce these effects but also provide alternative distribution solutions by introducing new transhipment points. Despite their potential, UCCs often fail to be self-supporting and are often dependent on subsides, which is not considered to be sustainable in the long run. In response, this thesis takes its point of departure in the two business models elements value propositions and target customers. A business model is often viewed as an enabler to generate revenue and UCCs have the potential to generate revenue by offering services to their customers, and the customers pay for the services. To understand how customers can benefit from UCCs and provide arguments why they should use these, it is important to understand the relationship between customers’ needs and the services UCCs can provide. The purpose of this thesis is to identify and describe the potential relationship between needs of UCC customers and UCC services. The research in the thesis is both explorative and descriptive, where a first step is to identify customer needs, UCC services, and value propositions. The descriptive part is to describe them and it is also the foundation for understanding the relationship between customer needs and UCC services. Through the analysis and discussion, multiple customer needs are identified and described for seven customer groups and the UCC operator; all of which could be considered customers of UCCs. The thesis also adds to the UCC literature with three new identified UCC services: e-commerce with used products, advertisement, and registration in computer system. The outcome of the analysis also provides illustrations of how customer needs can be matched with UCC services. For the most studied customer group, receiver of goods, a total of 29 different matches were identified, which illustrates the possibilities but also the complexity of the relationships. To understand the relationship, three different types of gaps were also identified that have implications for future research. The main contributions to research and the UCC literature in particular are enlargement of the scope of customers and the illustration of the relationships between customer needs and UCC services. The illustrations include contributions such as identifying, mapping and describing the customer needs, UCC services, and value propositions. An important first step is to understand how customer needs and UCC services can be linked, and this thesis provides examples of how this can be achieved. Viewing every stakeholder as a potential customer opens up the opportunity to fulfil their needs and the potential to generate revenue, which in turn could close the gap in the problem of non-self-supporting UCCs. Furthermore, with self-supporting UCCs, the number of freight vehicles can be reduced and this may lead to more attractive cities with less traffic congestion and lower emissions.

I den tryckta versionen är det ena serienamnet felaktigt. I den elektroniska versionen är detta ändrat till korrekt: "Linköping studies in Science and Technology. Licentiate Thesis"

Les villes sont les lieux de la plus grande concentration d'activités sociales et économiques. La logistique est l'une des plus importants éléments de la durabilité et de l'économie d’une la ville. Pour la logistique urbaine, il est nécessaire de prendre en compte les caractéristiques de la ville et les objectifs de toutes les parties prenantes (expéditeurs, destinataires, transporteurs, prestataires de services logistiques, résidents, gouvernement de la ville). Les plans de logistique urbaine durable pourraient avoir un impact significatif sur la qualité de la vie en milieu urbain. L'évaluation d'initiatives de logistique de ville durable (SCLI) telles que les centres de distribution urbains, la tarification de la congestion, le délai de livraison et les restrictions d'accès est un problème complexe, car plusieurs critères et contraintes subjectifs et objectifs doivent être pris en compte. Les administrations municipales investissent dans des initiatives de logistique urbaine durable telles que les centres de distribution urbains, la tarification de la congestion, le calendrier de livraison et les restrictions d'accès afin d'améliorer les conditions de transport de marchandises dans les villes et de réduire leurs impacts négatifs sur les citoyens et leur environnement. Cependant, il y a toujours des risques dynamiques associés à la sélection. L’analyse des risques des initiatives de logistique urbaine est une tâche complexe en raison de la multiplicité des facteurs de risque et de leurs dépendances. Bien qu'il n'y ait pas beaucoup d'études sur les risques liés à la logistique urbaine, aucune attention n'a été portée à l'analyse des risques liés à la logistique urbaine en prenant en compte les dépendances entre les facteurs de risque et leurs critères. Considérer les dépendances entre les facteurs de risque pourrait conduire à une analyse plus précise des risques et augmenter le taux de réussite de la sélection des initiatives de logistique urbaine. Méthodes: pour résoudre ce problème, nous proposons un outil avancé d'aide à la décision appelé «cartescognitives floues» (FCM), capable de gérer les risques associés à des systèmes aussi complexes. La FCM représente avec précision le comportement de systèmes complexes et peut prendre en compte les incertitudes, les informations imprécises, les interactions entre les facteurs de risque, la rareté de l'information et les opinions de plusieurs décideurs. En outre, il pourrait être appliqué à différents problèmes de prise de décision liés aux initiatives de logistique de ville durable (SCLI). Par conséquent, l'outil proposé aiderait les praticiens à gérer les risques liés à la logistique urbaine d'une manière plus efficace et proactive et offrirait de meilleures solutions d'atténuation des risques. Dans les études précédentes, les méthodes de décision multicritères étaient principalement utilisées pour l'évaluation, la comparaison et la sélection d'initiatives logistiques de villes en fonction des effets obtenus ou prévus résultant de leur introduction dans divers environnements urbains. Afin d'évaluer l'adéquation des solutions conceptuelles aux exigences des différentes parties prenantes et conformément aux attributs spécifiques de l'environnement urbain, il convient de définir des solutions conceptuelles associant différentes initiatives de logistique urbaine en utilisant un processus artificiel; outils de renseignement, y compris la FCM.
Les villes sont les lieux de la plus grande concentration d'activités sociales et économiques. La logistique est l'une des plus importants éléments de la durabilité et de l'économie d’une la ville. Pour la logistique urbaine, il est nécessaire de prendre en compte les caractéristiques de la ville et les objectifs de toutes les parties prenantes (expéditeurs, destinataires, transporteurs, prestataires de services logistiques, résidents, gouvernement de la ville). Les plans de logistique urbaine durable pourraient avoir un impact significatif sur la qualité de la vie en milieu urbain. L'évaluation d'initiatives de logistique de ville durable (SCLI) telles que les centres de distribution urbains, la tarification de la congestion, le délai de livraison et les restrictions d'accès est un problème complexe, car plusieurs critères et contraintes subjectifs et objectifs doivent être pris en compte. Les administrations municipales investissent dans des initiatives de logistique urbaine durable telles que les centres de distribution urbains, la tarification de la congestion, le calendrier de livraison et les restrictions d'accès afin d'améliorer les conditions de transport de marchandises dans les villes et de réduire leurs impacts négatifs sur les citoyens et leur environnement. Cependant, il y a toujours des risques dynamiques associés à la sélection. L’analyse des risques des initiatives de logistique urbaine est une tâche complexe en raison de la multiplicité des facteurs de risque et de leurs dépendances. Bien qu'il n'y ait pas beaucoup d'études sur les risques liés à la logistique urbaine, aucune attention n'a été portée à l'analyse des risques liés à la logistique urbaine en prenant en compte les dépendances entre les facteurs de risque et leurs critères. Considérer les dépendances entre les facteurs de risque pourrait conduire à une analyse plus précise des risques et augmenter le taux de réussite de la sélection des initiatives de logistique urbaine. Méthodes: pour résoudre ce problème, nous proposons un outil avancé d'aide à la décision appelé «cartescognitives floues» (FCM), capable de gérer les risques associés à des systèmes aussi complexes. La FCM représente avec précision le comportement de systèmes complexes et peut prendre en compte les incertitudes, les informations imprécises, les interactions entre les facteurs de risque, la rareté de l'information et les opinions de plusieurs décideurs. En outre, il pourrait être appliqué à différents problèmes de prise de décision liés aux initiatives de logistique de ville durable (SCLI). Par conséquent, l'outil proposé aiderait les praticiens à gérer les risques liés à la logistique urbaine d'une manière plus efficace et proactive et offrirait de meilleures solutions d'atténuation des risques. Dans les études précédentes, les méthodes de décision multicritères étaient principalement utilisées pour l'évaluation, la comparaison et la sélection d'initiatives logistiques de villes en fonction des effets obtenus ou prévus résultant de leur introduction dans divers environnements urbains. Afin d'évaluer l'adéquation des solutions conceptuelles aux exigences des différentes parties prenantes et conformément aux attributs spécifiques de l'environnement urbain, il convient de définir des solutions conceptuelles associant différentes initiatives de logistique urbaine en utilisant un processus artificiel; outils de renseignement, y compris la FCM.
The cities are the places of the largest concentration of social activities and economic. Logistics is one of the most important for the sustainability and the economy of the city. Inselecting the city logistics concept, it is necessary to consider the characteristics of the city and the goals of all the stakeholders (shippers, receivers, carriers, logistics service providers, residents, city government). Sustainable city logistics (SCL) plans could significantly affect the quality of life in the urban environment. Evaluating sustainable city logistics initiatives (SCLI) such as urban distribution centres, congestion pricing, delivery timing and access restrictions is a complex problem since several subjective and objective criteria and constraints should be considered. Municipal administrations are investing in sustainable city logistics initiatives (SCLI) such as urban distribution centres, congestion pricing, delivery timing and access restrictions in order to improve the condition of goods transport in cities and reduce their negative impacts on citizens and their environment. However, there is always some dynamic risks associated that should be selected. Risk analysis of sustainable city logistics initiatives is a complex task due to consisting of many risk factors with dependencies among them. Although there are no lots of studies on sustainable city logistics risks, no attention has been paid to the risk analysis of sustainable city logistics by considering the dependencies among risk factors and their criteria. Considering the dependencies among risk factors could lead to more precise risks analysis and increase the success rate of selecting sustainable city logistics initiatives. Methods: To address this, we are proposing an advanced decision support tool called "Fuzzy Cognitive Maps" (FCM) which can deal with risks of such complicated systems. FCM represents the behaviour of complex systems accurately and is able to consider uncertainties, imprecise information, the interactions between risk factors, information scarcity, and several decision maker's opinions. In addition, it could be applied to different decision makings problems related to sustainable city logistics initiatives (SCLI). Therefore, the proposed tool would help practitioners to manage sustainable city logistics risks in a more effective and proactive way and offer better risk mitigation solutions. In previous studies, multi-criteriadecision-making methods are mainly used for the evaluation, comparison and selection of individual sustainable city logistics initiatives in relation to the achieved or planned effects resulting from their introduction in various urban environments. In order to assess the suitability of the conceptual solutions to the requirements of different stakeholders, and in accordance with the specific attributes of the urban environment, there is the definition of conceptual solutions that combine different sustainable city logistics initiatives by using an artificial; intelligence tools including FCM.
The cities are the places of the largest concentration of social activities and economic. Logistics is one of the most important for the sustainability and the economy of the city. Inselecting the city logistics concept, it is necessary to consider the characteristics of the city and the goals of all the stakeholders (shippers, receivers, carriers, logistics service providers, residents, city government). Sustainable city logistics (SCL) plans could significantly affect the quality of life in the urban environment. Evaluating sustainable city logistics initiatives (SCLI) such as urban distribution centres, congestion pricing, delivery timing and access restrictions is a complex problem since several subjective and objective criteria and constraints should be considered. Municipal administrations are investing in sustainable city logistics initiatives (SCLI) such as urban distribution centres, congestion pricing, delivery timing and access restrictions in order to improve the condition of goods transport in cities and reduce their negative impacts on citizens and their environment. However, there is always some dynamic risks associated that should be selected. Risk analysis of sustainable city logistics initiatives is a complex task due to consisting of many risk factors with dependencies among them. Although there are no lots of studies on sustainable city logistics risks, no attention has been paid to the risk analysis of sustainable city logistics by considering the dependencies among risk factors and their criteria. Considering the dependencies among risk factors could lead to more precise risks analysis and increase the success rate of selecting sustainable city logistics initiatives. Methods: To address this, we are proposing an advanced decision support tool called "Fuzzy Cognitive Maps" (FCM) which can deal with risks of such complicated systems. FCM represents the behaviour of complex systems accurately and is able to consider uncertainties, imprecise information, the interactions between risk factors, information scarcity, and several decision maker's opinions. In addition, it could be applied to different decision makings problems related to sustainable city logistics initiatives (SCLI). Therefore, the proposed tool would help practitioners to manage sustainable city logistics risks in a more effective and proactive way and offer better risk mitigation solutions. In previous studies, multi-criteriadecision-making methods are mainly used for the evaluation, comparison and selection of individual sustainable city logistics initiatives in relation to the achieved or planned effects resulting from their introduction in various urban environments. In order to assess the suitability of the conceptual solutions to the requirements of different stakeholders, and in accordance with the specific attributes of the urban environment, there is the definition of conceptual solutions that combine different sustainable city logistics initiatives by using an artificial; intelligence tools including FCM.

The main purpose of these three years of research, summarized in this thesis, was to investigate the obstacles to the development of the city logistics initiatives by seeking solutions to overcome them through model and framework coming from management and transportation engineering. In particular, following a first analysis of a collection of European projects and a systematic analysis of scientific literature, three main gaps in city logistics have been identified: the lack of the stakeholders’ involvement, the need for data sharing platforms to overcome the current lack of data and the need to define city logistics solutions within the urban ecosystem, making consistent design choices coherently with what is already existing in terms of infrastructures, rules and stakeholders in the context. From these three gaps, three main research questions have arisen: (RQ1) Is it possible to support stakeholders in analysing CL solutions fitting their necessities applying some already existing and consolidate decision-making methods? (RQ2) Is it possible to define a database platform in which it is possible to collect, consult and update as many existing data as possible regarding urban freight transport? (RQ3) How is it possible to optimize city logistics infrastructures in a harmonious and coherent way with respect to the entire city logistics ecosystem? To answers to the research questions, a collection of articles is illustrated in this thesis work. From time to time different methodologies are used and illustrated, derived from the field of management and transport engineering, these different methodologies, such as the Systematic Literature Review, the House of Quality, a framework for building a data sharing platform, the city logistics Ecosystem and a decision-making support model (based on both a covering model and a Monte Carlo simulation) are described in detail in the various chapters of the thesis. In this dissertation work for the first time, the main obstacles to the development of city logistics initiatives, that are the lack of involvement of stakeholders, the lack of data, and the lack of an ecosystem vision of urban transport, have been identified and addressed at the same time. Even if literature sometimes offers some possible solutions to these gaps, few are simple to understand for those who work in the urban freight transport industry, easy to apply and replicable. Both in identifying the gap and in seeking solutions, the solutions showed in this thesis sought to address to those who work in the industry, mainly carriers, retailers, shop owners and public administration representatives, trying to combine scientific research with the search for solutions that can be implemented in practice as requested by such a practical research topic. For this reason, each proposed solution and methodology in this thesis has been implemented and experimented using as a case study the city of Bergamo (and testing its replicability in other European cities such as Saint-Etienne, Luxemburg and Amsterdam). In particular, the initial experience in the “Bergamo Logistica” project, part of the Bergamo 2.035 smart city research program, gave me the opportunity to understand the main critical issues found by the main actors who work in this field (i.e., carriers, couriers, retailers and institutions), to confirm some evidences that I found in the theory (i.e., main research gaps which originates the research questions) and to search for solutions that could both solve research gaps and optimize the daily logistics activities of the operators.
The main purpose of these three years of research, summarized in this thesis, was to investigate the obstacles to the development of the city logistics initiatives by seeking solutions to overcome them through model and framework coming from management and transportation engineering. In particular, following a first analysis of a collection of European projects and a systematic analysis of scientific literature, three main gaps in city logistics have been identified: the lack of the stakeholders’ involvement, the need for data sharing platforms to overcome the current lack of data and the need to define city logistics solutions within the urban ecosystem, making consistent design choices coherently with what is already existing in terms of infrastructures, rules and stakeholders in the context. From these three gaps, three main research questions have arisen: (RQ1) Is it possible to support stakeholders in analysing CL solutions fitting their necessities applying some already existing and consolidate decision-making methods? (RQ2) Is it possible to define a database platform in which it is possible to collect, consult and update as many existing data as possible regarding urban freight transport? (RQ3) How is it possible to optimize city logistics infrastructures in a harmonious and coherent way with respect to the entire city logistics ecosystem? To answers to the research questions, a collection of articles is illustrated in this thesis work. From time to time different methodologies are used and illustrated, derived from the field of management and transport engineering, these different methodologies, such as the Systematic Literature Review, the House of Quality, a framework for building a data sharing platform, the city logistics Ecosystem and a decision-making support model (based on both a covering model and a Monte Carlo simulation) are described in detail in the various chapters of the thesis. In this dissertation work for the first time, the main obstacles to the development of city logistics initiatives, that are the lack of involvement of stakeholders, the lack of data, and the lack of an ecosystem vision of urban transport, have been identified and addressed at the same time. Even if literature sometimes offers some possible solutions to these gaps, few are simple to understand for those who work in the urban freight transport industry, easy to apply and replicable. Both in identifying the gap and in seeking solutions, the solutions showed in this thesis sought to address to those who work in the industry, mainly carriers, retailers, shop owners and public administration representatives, trying to combine scientific research with the search for solutions that can be implemented in practice as requested by such a practical research topic. For this reason, each proposed solution and methodology in this thesis has been implemented and experimented using as a case study the city of Bergamo (and testing its replicability in other European cities such as Saint-Etienne, Luxemburg and Amsterdam). In particular, the initial experience in the “Bergamo Logistica” project, part of the Bergamo 2.035 smart city research program, gave me the opportunity to understand the main critical issues found by the main actors who work in this field (i.e., carriers, couriers, retailers and institutions), to confirm some evidences that I found in the theory (i.e., main research gaps which originates the research questions) and to search for solutions that could both solve research gaps and optimize the daily logistics activities of the operators.

Expanderande städer resulterar i ökande behov av godstransporter och för att behålla en fungerande godsdistribution kan åtgärder behöva vidtas. Trafikstockning och försämrad stadsmiljö är negativa effekter som kan förknippas med en dåligt fungerande godsdistribution. Citylogistik handlar om att kontrollera och optimera godstransporter i urbana områden (city) så att negativa effekter minimeras. Olika typer av citylogistiska åtgärder och koncept har identifierats. Till dem hör till exempel samdistribution, reglering av godstransporter och avancerade IT-system. Inom ramen för projektet SAMLIC, som startades i Linköping 2004, genomfördes pilotförsöket PILOT med det övergripande syftet att utvärdera ekonomisk potential med samdistribution i Linköpings city. Under PILOT omsattes ett samdistributionskoncept i praktiken. En databas med information om godsdistributionen under försöket upprättades för senare analys. Syftet med detta examensarbete har varit att formulera matematiska modeller över godsdistributionen i ett medelstort city, som kan ge underlag för utvärdering av citylogistiska koncept och i synnerhet samdistributionskoncept. De matematiska modeller som tagits fram är optimeringsmodeller för ruttplanering och metoder för att lösa optimeringsmodellerna har implementerats. För att utvärdera modellerna och metoderna har en fallstudie av Linköpings city gjorts, med datamaterial från PILOT. Modellerna ger möjlighet till effektiva analyser och jämförelser av citylogistiska koncept. Fallstudien visar dessutom att optimering av godsdistributionen i city innebär god förbättringspotential vilket ger ytterligare motiv till att använda modeller som verktyg.
Urbanization and city expansion result in an increasing need of transportation of goods, and in order to maintain efficiency, measures are needed. The aim of city logistics is to minimize negative impacts associated with city center goods distribution, such as traffic congestion and negative impacts on the living environment. Several city logistic measures have previously been suggested, such as freight consolidation, governance and advanced IT systems. Within the SAMLIC project started in 2004, a demonstration project known as PILOT was carried out in central Linköping, wherein the concept of freight consolidation was applied in reality. The objective was to evaluate the economic potential of freight consolidation. The aim of this thesis was to formulate mathematical models of the distribution of goods in a medium sized Swedish city. The models are to be used in the evaluation of city logistic measures, focusing on freight consolidation. The distribution problem is modelled as a vehicle routing problem, and methods for solving the resulting optimization problems have been implemented. Using data from PILOT, the models have been applied on Linköping with the purpose of evaluating the methods, as well as investigating the potential of using models for planning the distribution of goods. Conclusions involve that analyses of, and comparisons between, city lo-gistic measures can be efficiently made using mathematical models. The case study also indicates that goods distribution can be improved through the use of optimization methods, which further motivates mathematical modelling.

O presente estudo tem o objetivo de analisar os padrões espaciais das ocorrências de suicídio no município de São Paulo, no período de 1996 a 2005, e verificar a sua associação com variávies socioeconômico-culturais (estado civil, renda, instrução, religião, migração). A escolha das variáveis analíticas foi baseada nos fatores de risco ao suicídio levantados pela OMS, OPAS e na teoria sobre o suicídio de Durkheim. Os dados socioeconômicos utilizados foram provenientes do IBGE e os dados de mortalidade do PRO-AIM. Para a identificação do padrão espacial das taxas de suicídio foi utilizado o teste de varredura espacial. Para a verificação da associação com as variáveis socioeconômicas e culturais foi utilizada análise de regressão logísica. No período estudado ocorreram 4275 óbitos por suicídio no município de São Paulo, com uma taxa média de 4,1/100 mil hab/ano. O primeiro teste de varredura espacial, considerando-se 50% da população total como tamanho máximo do agrupamento, identificou 2 agrupamentos significativos, um de risco (RR = 1,66) composto por 18 distritos da região central, centro-sul e centrooeste da cidade (Alto de Pinheiros, Barra Funda, Bela Vista, Bom Retiro, Brás, Cambuci, Consolação, Itaim Bibi, Jardim Paulista, Liberdade, Moema, Morumbi, Pinheiros, Perdizes, República, Santa Cecília, Sé, Vila Mariana) e um de proteção (RR = 0,78) formado por 14 distritos da região sul (Campo Grande, Campo Limpo, Capão Redondo, Cidade Ademar, Cidade Dutra, Grajaú, Jardim Ângela, Jardim São Luís, Santo Amaro, Socorro, Pedreira, Raposo Tavares, Vila Andrade, Vila Sônia). O teste considerando-se 5% da população total como tamanho máximo do agrupamento, encontrou 2 agrupamentos significativos. Nesse teste, o agrupamento de risco do primeiro teste foi desmembrado em dois agrupamentos menores, ambos de risco. O agrupamento primário apresentou RR = 1,92 em 9 distritos centrais, o agrupamento secundário RR = 1,58 em 6 distritos da região centro-sul. Para a análise de regressão logística, o agrupamento de risco identificado no primeiro teste de varredura espacial (18 distritos) e os demais 78 distritos (contraste) foram definidos como variáveis dependentes e as variáveis socioeconômicoculturais independentes. O primeiro modelo ajustado na regressão multivariada identificou as seguintes variáveis como risco: solteiros (OR = 2,36); migrantes (OR = 1,49); católicos (OR = 1,36); elevada renda (OR = 1,05). O segundo modelo multivariado identificou as seguintes variáveis como proteção: casados (OR = 0,48); evangélicos (0,60). Os resultados podem ser explicados pelos fatores de risco da literatura, pela teoria de Durkheim adaptada à realidade paulistana e pela diferença entre suicídio e homicídio.
The present study aims to analyse the space patterns of suicide occurence in the city of São Paulo, in the period from 1996 to 2005, and check its association with the socioeconomic-cultural variables (marital status, income, education, religion, migration). The choice of the analytical variables was based on the suicide risk factors lifted by the WHO and OPAS, and in the Durkheim´s suicide theory. The socioeconomic data used were originated from the IBGE and the mortality data from the PRO-AIM. The spatial scan test was applied to identify space patterns of suicide rates. In order to check the association with the socioeconomic-cultural variables, the logistic regression analysis was used. In the studied period, 4275 suicide deaths took place in the city of São Paulo, with a mean rate of 4,1/100 thousand inhabitant/year. The first spatial scan test, considering 50% of the total population as the maximum cluster size, identified 2 significant clusters, one of risk (RR = 1,66) composed by 18 districts of the central region, south-center and western-center of the city (Alto de Pinheiros, Barra Funda, Bela Vista, Bom Retiro, Brás, Cambuci, Consolação, Itaim Bibi, Jardim Paulista, Liberdade, Moema, Morumbi, Pinheiros, Perdizes, República, Santa Cecília, Sé, Vila Mariana) and one of protection (RR = 0,78) formed by 14 districts of the south region (Campo Grande, Campo Limpo, Capão Redondo, Cidade Ademar, Cidade Dutra, Grajaú, Jardim Ângela, Jardim São Luís, Santo Amaro, Socorro, Pedreira, Raposo Tavares, Vila Andrade, Vila Sônia). The test considering 5% of the total population as the maximum cluster size, found 2 significant clusters. In this test, the risk cluster of the first test was dismembered in two minor clusters, both of risk. The primary cluster presented RR = 1,92 in 9 central districts the secondary cluster RR = 1,58 in 6 districts of the south-centre. To the logistic regression analysis, the risk cluster identified in the first spatial scan test (18 districts) and the others 78 districts (contrast) were defined as dependent variables and the socioeconomic-cultural variables as independent. The first adjusted model in the multivaried regression identified these variables like risk: singles (OR = 2,36); migrant (OR = 1,49); catholics (OR = 1,36); high income (OR = 1,05). The second multivaried model identified these variables like protection: married (OR = 0,48); evangelic (0,60). The results can be explained by the literature risk factors, the Durkheim´s theory well-adjusted for the reality of São Paulo and by the difference between suicide and homicide.

Le VRP permet de modéliser la problématique du TMV. Pour autant dans sa version la plus simpliste il ne peut convenir aux nouvelles contraintes qui renforcent la complexité de l’environnement urbain tel que la congestion. Raison pour laquelle ce travail se positionne en premier sur un TDVRP (Time-Dependent-Vehicle-Routing-Problem) dans le but de représenter au mieux le contexte urbain actuel. La résolution de ces deux problèmes est efficace, entraînant une réduction du nombre de véhicules supplémentaires nécessaires en raison des retards de congestion peuvent être éliminés. Mais cette solution n’est pas sans conséquence pour les clients finaux puisque son but est d’éviter le passage aux heures de pointes et cela peut engendrer des retards de livraison. Pour cette raison nous voulons proposer une nouvelle solution qui permet de résoudre le problème du chemin le plus court et en intégrant la dépendance au temps (TDVRP). Cette solution se repose sur une meilleure exploitation des véhicules, en premier lieu, pour réduire le nombre de véhicule sur la route. Ce problème s’appelle MT-VRP (Multi-Trip VRP) qui a été évoqué en 2007 par (Azi, et al. 2007). Dans un deuxième temps nous voulons proposer un MT VRP qui utilise différents types de véhicule en termes de capacité de chargement. Dans cette optique vient notre travail qui propose une nouvelle solution de MTTDVRP (TW avec fenêtres de temps) en testant une nouvelle solution en utilisant un véhicule léger de faible capacité de chargement (type tricycle) dans un but de réduire les nuisances liés au TMV
The VRP makes it possible to model the problem of TMV. However, in its most simplistic version it cannot be adapted to the new constraints which reinforce the complexity of the urban environment such as congestion. This is why this work is placed first on a TDVRP (Time-dependent-Vehicle-Routing-Problem) in order to best represent the current urban context. The resolution of these two problems is effective; resulting in a reduction in the number of additional vehicles needed due to congestion delays can be eliminated. But this solution is not without consequences for end customers since its goal is to avoid the switch to peak hours and this can lead to delivery delays. For this reason we want to propose a new solution that solves the problem of the shortest path and integrating time dependency (TDVRP). This solution relies on better operation of vehicles, in the first place, to reduce the number of vehicles on the road. This problem is called MT-VRP (Multi-Trip VRP) which was raised in 2007 by (Azi, et al. 2007). In a second step we want to propose a MT VRP that uses different types of vehicle in terms of loading capacity. In this perspective comes our work that proposes a new solution of MTTDVRP (TW with time windows) by testing a new solution using a light vehicle of low load capacity (tricycle type) in order to reduce the nuisance associated with TMV

Att färdas med färja är ett populärt sätt att resa i Sverige, både som nöje och som ett färdmedel för att ta sig från en plats till en annan. Vilken anledning passageraren än har för sin resa med färja så behöver de flesta resa genom en stad för att ta sig till färjeterminalen. Syftet med det här arbetet är att undersöka om och på vilka sätt färjelinjerna och deras färjeterminaler gör nytta för städerna de är belägna i. Genom undersökningar med enkäter direkt till passagerarna på olika färjor samt intervjuer, med väl utvalda personer inom de aktuella branscherna, kunde en sammanställning göras om vilken betydelse färjetrafiken har på medelstora städer. Resultatet visade att passagerarnas konsumtion i staden på väg till färjan kunde ses som försumbar, sett till näringslivets omsättning är den konsumtionen relativt liten. Om färjeläget hade försvunnit från någon av de undersökta städerna hade exempelvis den minskade omsättningen hos en butik varit liten. Minskningen i exempelvis den matvarubutik som deltagit i undersökningen hade varit så liten att det inte direkt hade gått att knyta till nedläggningen, om de inte visste om nedläggningen på förhand. Färjelinjerna visade sig dock bidra med nytta till städerna på andra sett till exempel genom sin farledsavgift och stadens igenkänning.
To travel by ferry in Sweden is very popular, both for pleasure and as a means of transport. Whatever reason you have for travelling by ferry, you often have to travel through a city to arrive at the ferry terminal. The purpose of this essay is to investigate in what ways the cities benefit by their ferry lines and terminals. By making our own investigation, containing passenger surveys and interviews with carefully chosen persons in these specific areas, it was possible to analyze how and if the cities benefit by their ferries. The result of this investigation shows that the passengers’ consumption, when they travel through the cities, is negligible. Considering the revenue of the trade and industry, this consumption is very small. If the ferry terminal had been closed down in some of the investigated cities the loss of revenue in a grocery store that participated in the survey would have been so small that the company would have had a hard time figuring out that the loss was because of the closure of the terminal. The survey however showed that the ferry lines and their terminals contributed in other ways to the cities, for example through the fairway fee and the cities’ reputation.

I Norra Djurgårdsstaden i Stockholm pågår ett stort stadsutvecklingsprojekt där det planerats för ungefär 12 000 nya bostäder, 35 000 arbetsplatser och 600 000 kvadratmeter kommersiell yta. För att koordinera alla transporter av byggmaterial in till området, samt hantera avfallstransporter ut ur området, har Stockholms stad etablerat ett bygglogistikcenter vars mål bland annat är att reducera antalet transporter. Syftet med detta examensarbete har varit att ta fram en metod för utvärdering av potentiella miljöeffekter med bygglogistikcentret i Norra Djurgårdsstaden. Examensarbetet har tittat på byggtransportlogistik ur ett livscykelperspektiv för jämförelse mellan två olika scenarion, då ett bygglogistikcenter finns (scenario 1) respektive då ett sådant inte finns (scenario 2). De parametrar som ingått är partiklar och energianvändning samt CO2, NOx och SO2. Två olika beräkningsverktyg har jämförts och valet föll på ett verktyg från NTM, Nätverket för Transporter och Miljön. En genomgång av vilken information som erfordras för att göra beräkningar har gjorts och för att undersöka tillgången till dessa data har ett antal intervjuer samt en workshop genomförts med olika aktörer, både inom Norra Djurgårdsstaden men också utifrån. Andra saker som diskuterades var aktörernas syn på bygglogistikcentret, vad som kan förbättras med det samt hur själva utfallet av en utvärdering skulle kunna förbättras, exempelvis genom styrning i upphandlingsprocessen. Intervjuer och workshop har också varit viktiga i syfte att förankra den föreslagna utvärderingsmetoden hos aktörerna själva. Under intervjuer och workshop har det bland annat framkommit en del konstateranden och några förslag till förbättringar. Exempelvis sades att logistikfrågor lyfts upp enbart genom att bygglogistikcentret finns och att den största förbättringen med bygglogistikcentret anses vara att framkomligheten är mycket bättre än vad den annars hade varit. En annan sak som de flesta var eniga om var att krav i upphandling bör ställas så tidigt som möjligt för att de ska kunna få så stor effekt som möjligt. För att göra en utvärdering krävs data om alla olika transporter och för varje transporttyp behövs information inom tre olika kategorier: fordonet, lasten samt själva körvägen. Eftersom alla data inte finns tillgängliga idag kommer en del antaganden att behöva göras, hur många beror på när i tiden utvärderingen ska göras och hur noggrann den ska vara. Om en utvärdering ska göras snarast rekommenderas att ett antal manuella mätningar genomförs men för att utvärderingar ska kunna göras kontinuerligt föreslås att en del åtgärder vidtas för att automatisera insamlingen av data. Det rekommenderas också att en känslighetsanalys av erhållna mätvärden görs för bedömning av vilka data som är i störst behov av ökad noggrannhet för att utvärderingens tillförlitlighet ska öka. Beroende på vad en sådan analys visar ges förslag på några olika åtgärder som kan vidtas, såsom att montera kameror vid grindpassager för information om passerande fordon eller att installera datorer i vissa fordon för att få information om körbeteende.
In the eastern part of Stockholm a major urban development project is taking place. It is called Stockholm Royal Seaport and until the year 2030 approximately 12,000 new homes, 35,000 workplaces and 600,000 square meters of commercial areas will be added to the area. The project has been given a very ambitious environmental action program and as a part of that the City of Stockholm has established a logistics center in the area. The logistics center is supposed to coordinate all transports of building material and handle the waste during the construction phase. One objective with the logistics center is to reduce the amount of transports and thereby also the generated emissions and the use of energy. The aim of this thesis has been to develop a methodology for evaluating the potential environmental impacts related to the logistics center in the Stockholm Royal Seaport. The evaluation method is able to compare the effect, from a life cycle perspective, from construction transports in two different scenarios, scenario 1 where there is a logistics center and scenario 2 where there is not. The chosen parameters are CO2, NOx, SO2, particulate matter and energy usage. Two different tools for computing values for the chosen parameters have been compared and the selected one is developed by NTM, the Network for Transport Measures. After the selection an investigation of input data required to use the tool was performed. A number of interviews were conducted and a workshop was organized with various representatives, mainly people working with construction or transportation in the Stockholm Royal Seaport. The things discussed during the interviews and the workshop were, among other things, the availability of required data, the interviewees opinions about the logistics center and their suggestions for improvements that can be done, both at the center itself, but also for example in the procurement process. Another purpose for the interviews and the workshop was to anchor the methodology with the various representatives. A direct result from the interviews and the workshop has been some proposals for improvement, for example that requirements in the procurement process should be presented at an early stage to be able to be as effective as possible. Some of the interviewees pointed out that logistic issues are highlighted simply by the existence of the logistics center. There are a couple of different transport routes within the area, as some deliveries are allowed directly into the construction sites, whereas some have to pass the logistics center to unload the freight, all depending on the amount of freight to a specific site. Staff at the logistics center will then consolidate the deliveries to the construction sites into one vehicle. They also collect the generated waste, which they handle at the center before it is transported to an external retrieval plant. The logistics center also utilizes a vehicle used for inspections of the traffic and deliveries within the area. All of the above mentioned types of transportations are included in the thesis. An evaluation of the effects of the logistics center requires data about all types of transportation, within three different categories: the vehicle, the load and the actual route. Since all required data is not available today some assumptions have to be made, how many and which depends on the requested accuracy of the evaluation and when it is to be performed. If an evaluation is to be performed given the current conditions it is recommended that a number of manual measurements are carried out to collect data which was not available at the time being, however, if evaluations are to be done continuously it is suggested that the retrieval of data is as automated as possible. It is also recommended to do a sensitivity analysis of the data retrieved from the measurements to assess the impact from certain data on the chosen parameters. The amount of impact helps determine which data to refine in order to increase the accuracy of the evaluation. Depending on what the analysis shows the thesis gives suggestions for actions such as installing cameras at gates to the construction sites and/or the logistics center or to install computers in vehicles to obtain data on driving behavior.

Syftet med denna studie var att undersöka olika algoritmer som kan användas för attlösa ruttplaneringsproblemet och handelsresandeproblemet. Ruttplaneringsproblemetoch handelsresandeproblemet är problemet som uppstår när den kortaste sträckan skahittas mellan olika körpunkter och problemet är löst efter att den kortaste sträckan blivitfunnen. Observationer och intervjuer hos återvinningsföretaget Gotland Recyclinggjordes för att undersöka hur heuristiker som är metoder, tumregler som kan användasför att få fram resultat som är bra men inte alltid helt optimala kan användas för att kortaner körruterna. Arbetet gjordes med hjälp av företaget Gotland Recycling som idag harcirka 500 kunder per år och äger två sopbilar samt två lastbilar. Företaget har under enlängre tid förstått att deras ruttplaneringssystem har kunnat förbättras därav har företagetintresserat sig för att testa nya metoder för att förbättra sina egna rutter samt olikametoder för att validera de metoder som redan används för ruttplanering och körning.Google Maps och Microsoft Excel användas i denna studie för att applicera de olikaruttplaneringsmetoderna och kunna analysera de olika rutterna. Med hjälp av GoogleMaps har kostnader i form av körsträcka i meter och kilometer tagits fram genom attapplicera algoritmerna på olika körnings områden. Med hjälp av Google Maps ochMicrosoft Excel har fordonens körningsmönster blivit kartlagda och registrerade itabeller där de olika algoritmerna blivit applicerade för att bygga upp nya rutter ochmäta de nya rutternas körsträcka. Litteratur och artiklar har även samlats ihop för dennastudie och användes för att analysera olika ruttplanering och handelsresandeproblemsmetoders olika svagheter och styrkor. Resultatet från testerna och litteraturen visade attdet finns en potential att olika lösnings metoder som undersökts i denna studie kanminska på körsträckan. Olika lösningsmetoder har olika förutsättningar, styrkor ochsvagheter beroende på situationen som de appliceras inom. I två tester av tre medanvändning av någon av den utvalda ruttplanerings metoder minskade körsträckan imeter för rutten jämfört med företagets egen ruttplanering. Både testerna och litteraturenpåvisade att ibland förekommer mycket oberäkneliga hinder inom vissa områden somgör det meningslöst att applicera ruttplanering och handelsresandemetoder inom dessaområden och att mer avancerade system krävs för att hantera situationen.
The aim with this paper was to study how different kinds of heuristics for the routeplanning and traveling salesman’s problem could affect the route, potentially decreasethe driving costs and make it easier for companies and vehicles to plan their routes. Toinvestigate how different heuristics can affect the route planning, observations andinterviews has been made in a company named Gotland Recycling. Gotland Recyclingis a recycling company which operate on the island Gotland. Today the company has500 customers per year and owns four truck vehicles. The company has understood thatfor a long time their route planning system can be improved and has taken an interest intesting new methods to improve their own route planning and validate the methodswhich they are already using for route planning and driving. To analyze the differentroutes Google Maps and Excel was used. With the help of Google Maps and Excel costsin the form of driving length in meter and kilometer has been produced by applying thechosen algorithms on different driving areas. With the help of Google Maps and Excel,the driving pattern has been charted and registered in different tables. Differentalgorithms have then been applied to construct new routes and measure their mileage.Theory in the form of literature and articles has been collected for this study to analyzeand compare different strengths and weaknesses of different route planning andtraveling salesman problem solving methods. The result from this study shows there is apotential for different solution methods to make the mileage smaller. Different solvingmethods had different qualifications, strengths and weaknesses which depended on thesituations which they were applied. In two of the three tests which were made thechosen solving methods produced routes which were shorter than the route produced bythe company. Both testing and the literature also showed that for some situations thereare so many random obstacles in driving areas which make it meaningless to apply anytype of route-planning method and more advanced systems are required.

Norra Djurgårdsstaden is the largest ongoing construction project in Sweden and is planned to be completed in 2030. The city district is situated in north-eastern Stockholm, in a former industrial area where approximately 12 000 new homes and 35 000 workplaces are planned. The city district focuses strongly on reducing energy consumption and the negative impacts on the environment. One idea for realizing this goal is to implement coordinated freight logistics. This can be accomplished by building a consolidation centre where goods from different logistics companies and freight carriers can be loaded together on the same delivery vehicles and then be delivered in the same area in Norra Djurgårdsstaden.   The purpose of this master thesis is to evaluate five earlier evaluation reports on consolidation centres. Based on these evaluation reports and other relevant literature, it is recommended how a coordinated freight logistic project should be organized in Norra Djurgårdsstaden and how the impact on the environment and energy consumption should be calculated. The evaluation reports are from the logistic centre in the Old Town of Stockholm, the pilot project Samlic in Linköping, the urban consolidation centre in Norwich, the micro-consolidation centre in London and several urban logistic practices in Utrecht. A thorough comparative analysis of the five different evaluation reports has looked at the initiators and the stakeholders, the delivery situation before and after the implementation of the consolidation centre as well as done a deeper evaluation analysis of all the evaluation reports. The comparative analysis showed that the consolidation centres have had a positive effect on decreasing the number of delivery vehicles in the city district and thereby reducing the emissions and the energy consumption from the delivery vehicles.   Based on the comparative analysis and other literature it is suggested that the initiative to build a consolidation centre in Norra Djurgårdsstaden has to come from the City of Stockholm. The stakeholders should be the City of Stockholm, logistics companies, freight companies, the different businesses in the area and the Ports of Stockholm. To encourage even more businesses to have deliveries from the consolidation centre and get more environmentally friendly delivery vehicles in the city district it might be necessary to use several management control instruments. Examples of control instruments are environmental zones, time windows and implement different restrictions on the delivery vehicles. It is essential to gather information about the delivery vehicles in the city district to estimate emissions and the energy consumption. The collection of data from the delivery vehicles can be gathered from consignment notes, driver notes, invoice data or statistics of the number of vehicles that have delivered goods in the city centre from freight and logistics companies. Then the delivery vehicles impact on energy consumption and the environment can be estimated with the computer tool Network of transports and environment (NTM-method).
Norra Djurgårdsstaden är det största pågående byggprojektet i Sverige och är planerat att slutföras under 2030. Stadsdelen ligger i nordöstra Stockholm, i ett före detta industriområde där cirka 12 000 nya bostäder och 35 000 arbetsplatser är planerade att byggas. Stadsdelen har ett starkt fokus på att minska miljöeffekterna och påverkan av energianvändningen. En av idéerna för att uppfylla detta är att införa samordnad varulogistik. Detta kan göras genom att bygga ett logistikcenter där gods från olika logistikföretag och godstransportörer kan lastas på samma leveransfordon och sedan levereras inom samma område i Norra Djurgårdsstaden.   Syftet med detta examensarbete är att utvärdera fem tidigare utvärderingsrapporter om logistikcenter. Med hjälp av dessa utvärderingsrapporter och annan litteratur ges det förslag på hur ett projekt inom samordnad varulogistik kan organiseras i Norra Djurgårdsstaden och hur miljöpåverkan och energiförbrukning från leveransfordonen kan beräknas. Utvärderingsrapporterna kommer från logistikcentret i Gamla Stan i Stockholm, pilotprojektet Samlic i Linköping, logistikcentret i Norwich, mikro-logistikcentret i London och olika logistikmetoder i Utrecht. En noggrann jämförande analys av de fem olika utvärderingsrapporterna har undersökt initiativtagare och intressenter, leveranssituationerna före och efter uppförandet av logistikcentren samt gjort en fördjupad utvärderingsanalys av samtliga utvärderingsrapporter. Den jämförande analysen visar att införandet av logistikcenter har haft en positiv effekt för att minska antalet leveransfordon i stadsdelen och därmed inneburit minskade utsläpp och lägre energianvändning för leveransfordonen.   Baserad på den komparativa analysen och annan litteratur föreslås det att initiativet i Norra Djurgårdsstaden måste komma från Stockholms stad. Intressenterna bör vara Stockholms Stad, logistikföretag, godstransportörer, de olika företagen i området och Stockholms Hamnar. För att få fler företag att använda logistikcentret samt att få miljövänligare leveransfordon i stadsdelen kan det vara nödvändigt att använda flera styrmedel. Exempel på styrmedel är miljözoner, tidsfönster och att införa olika begränsningar på leveransfordon. Det är väsentligt att samla information om leveransfordonen i stadsdelen för att beräkna utsläpp och energianvändning. Insamlingen av data från leveransfordon kan hämtas från fraktsedlar, fakturaunderlag eller statistik över antalet fordon som har levererat varor i stadsdelen från frakt-och logistikföretag. Då kan miljö- och energieffekterna från leveransfordonen beräknas med dataverktyget Nätverket för transporter och miljö (NTM-metoden).

In this paper,we propose an adaptive large neighborhood search heuristic for the Two-Echelon Vehicle Routing Problem (2E-VRP) and the Location Routing Problem (LRP).The 2E-VRP arises in two-level transportation systems such as those encountered in the context of city logistics. In such systems, freight arrives at a major terminal and is shipped through intermediate satellite facilities to the final customers. The LRP can be seen as a special case of the 2E-VRP in which vehicle routing is performed only at the second level. We have developed new neighborhood search operators by exploiting the structure of the two problem classes considered and have also adapted existing operators from the literature. The operators are used in a hierarchical scheme reflecting the multi-level nature of the problem. Computational experiments conducted on several sets of instances from the literature show that our algorithm out performs existing solution methods for the 2E-VRP and achieves excellent results on the LRP.

The master thesis aims to design, implement, and compare algorithms that optimize processes in logistics, mainly in the planning phase. Heuristics and approximation genetic algorithms will find an near-optimal solution to NP-hard problem, such as the traveling salesman problem, with a delay less than several hours. The role of this algorithm is to plan an efficient route for garbage trucks that collect and distribute large-scale waste to waste yards in a specific city. The goal of the optimization is to minimize the shipping costs.