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1
Lu, Qing-Chang, e Shan Lin. "Vulnerability Analysis of Urban Rail Transit Network within Multi-Modal Public Transport Networks". Sustainability 11, n. 7 (9 aprile 2019): 2109. http://dx.doi.org/10.3390/su11072109.
Abstract (sommario):
In terms of urban rail transit network vulnerability, most studies have focused on the network topology characteristics and travel cost changes after network incidents and analyzed rail transit network independently. The neglects of passenger flow distributions on the network and alternative public transport modes under rail network disruptions would either underestimate or overestimate the vulnerability of rail transit network, and thus lead to inaccurate results and decisions. This study presents an accessibility-based measurement for urban rail transit network vulnerability analysis and explicitly accounts for rail passenger flow characteristics, travel cost changes, and alternative transit modes. It is shown that the proposed approach is capable of measuring the consequences on rail network, and the advantages of the accessibility method are demonstrated and compared. The methodology is applied to the urban rail transit network of Shenzhen, China within a multi-modal public transport network. Results reveal that the consequences of disruptions on network accessibility are obviously different for stations with different passenger flow characteristics, and some undisrupted stations are found to be vulnerable under surrounding station failures. The proposed methodology offers reliable measurements on rail transit network vulnerability and implications for decision-making under rail network disruptions.
2
Botea, Adi, e Stefano Braghin. "Contingent versus Deterministic Plans in Multi-Modal Journey Planning". Proceedings of the International Conference on Automated Planning and Scheduling 25 (8 aprile 2015): 268–72. http://dx.doi.org/10.1609/icaps.v25i1.13691.
Abstract (sommario):
Deterministic planning is the de facto standard in deployed multi-modal journey planning systems. However, in reality, transportation networks feature many types of uncertainty, including variations of the arrival and the departure times of public transport vehicles. Under uncertainty, deterministic plans could result in missed connections, leading to an arrival time much worse than originally planned. We contribute an empirical study using transportation network data from three European cities. We show that, in the presence of uncertainty, contingent plans can often provide significant savings in terms of travel time. We view our results as important because they advocate adopting uncertainty-aware multi-modal journey plans, shifting from the current practice based on using deterministic planning.
3
Rodríguez González, Ana Belén, Juan José Vinagre Díaz, Mark R. Wilby e Rubén Fernández Pozo. "Data-Driven Performance Evaluation Framework for Multi-Modal Public Transport Systems". Sensors 22, n. 1 (21 dicembre 2021): 17. http://dx.doi.org/10.3390/s22010017.
Abstract (sommario):
Transport agencies require accurate and updated information about public transport systems for the optimal decision-making processes regarding design and operation. In addition to assessing topology and service components, users’ behaviors must be considered. To this end, a data-driven performance evaluation based on passengers’ actual routes is key. Automatic fare collection platforms provide meaningful smart card data (SCD), but these are incomplete when gathered by entry-only systems. To obtain origin–destination (OD) matrices, we must manage complete journeys. In this paper, we use an adapted trip chaining method to reconstruct incomplete multi-modal journeys by finding spatial similarities between the outbound and inbound routes of the same user. From this dataset, we develop a performance evaluation framework that provides novel metrics and visualization utilities. First, we generate a space-time characterization of the overall operation of transport networks. Second, we supply enhanced OD matrices showing mobility patterns between zones and average traversed distances, travel times, and operation speeds, which model the real efficacy of the public transport system. We applied this framework to the Comunidad de Madrid (Spain), using 4 months’ worth of real SCD, showing its potential to generate meaningful information about the performance of multi-modal public transport systems.
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Liang, Huilin, e Qingping Zhang. "Assessing the public transport service to urban parks on the basis of spatial accessibility for citizens in the compact megacity of Shanghai, China". Urban Studies 55, n. 9 (13 giugno 2017): 1983–99. http://dx.doi.org/10.1177/0042098017705846.
Abstract (sommario):
Urban parks and public transport are indispensable elements of a compact megacity for their environmental and social values. However, few measures of urban park accessibility have considered the public transport travel mode. Based on the framework of geographic information systems (GIS) network analysis, this study proposes an innovative method to incorporate public transport travel mode into urban park accessibility evaluations. Taking Shanghai, China, as the study area, we measured home to park and park from home travel times on multi-modal transport networks, calculated the accessibilities by multiple equations, and compared accessibilities for different districts. These methods extend current accessibility measures by calculating accessibility at a realistic level, and provide a measure of public transport service for urban parks. The results for Shanghai show that approximately 99.95% of home to park routes might include public transport. The distribution of home to park public transport accessibility of the city was uneven. The patches with best accessibility tend to be distributed in the built-up area in the city centre. Public transport access to urban parks is inhomogeneous for different districts, because of urban park locations, road network characteristics, and uneven public transport supply. The distribution of park from home public transport accessibility has no significant correlation with district development stage. Public transport service in Shanghai takes no account of the factors of park star rating or size. Positive actions are required to improve the equity of public transport access to the important public health resources of urban parks.
5
Liu, Hao, Ting Li, Renjun Hu, Yanjie Fu, Jingjing Gu e Hui Xiong. "Joint Representation Learning for Multi-Modal Transportation Recommendation". Proceedings of the AAAI Conference on Artificial Intelligence 33 (17 luglio 2019): 1036–43. http://dx.doi.org/10.1609/aaai.v33i01.33011036.
Abstract (sommario):
Multi-modal transportation recommendation has a goal of recommending a travel plan which considers various transportation modes, such as walking, cycling, automobile, and public transit, and how to connect among these modes. The successful development of multi-modal transportation recommendation systems can help to satisfy the diversified needs of travelers and improve the efficiency of transport networks. However, existing transport recommender systems mainly focus on unimodal transport planning. To this end, in this paper, we propose a joint representation learning framework for multi-modal transportation recommendation based on a carefully-constructed multi-modal transportation graph. Specifically, we first extract a multi-modal transportation graph from large-scale map query data to describe the concurrency of users, Origin-Destination (OD) pairs, and transport modes. Then, we provide effective solutions for the optimization problem and develop an anchor embedding for transport modes to initialize the embeddings of transport modes. Moreover, we infer user relevance and OD pair relevance, and incorporate them to regularize the representation learning. Finally, we exploit the learned representations for online multimodal transportation recommendations. Indeed, our method has been deployed into one of the largest navigation Apps to serve hundreds of millions of users, and extensive experimental results with real-world map query data demonstrate the enhanced performance of the proposed method for multimodal transportation recommendations.
6
Mosquera, Federico, Pieter Smet e Greet Vanden Berghe. "An Algorithm for Generating a Diverse Set of Multi-Modal Journeys". Algorithms 15, n. 11 (7 novembre 2022): 416. http://dx.doi.org/10.3390/a15110416.
Abstract (sommario):
A direct way of reducing the number of cars on the road is to dissuade individuals from exclusively using their car and instead integrate public transport into their daily routine. Planning multi-modal journeys is a complex task for which individuals often rely on decision support tools. However, offering individuals different journey options represents a significant algorithmic challenge. The failure to provide users with a set of journey options that differ considerably from one another in terms of the modes of transport employed is currently preventing the widespread uptake of multi-modal journey planning among the general public. In this paper, we introduce a dynamic programming algorithm that remedies this situation by modeling different transport networks as a graph that is then pruned by various graph-reduction pre-processing techniques. This approach enables us to offer a diverse set of efficient multi-modal solutions to users almost instantaneously. A computational study on three datasets corresponding to various real-world mobility networks with up to 30,000 vertices and 596,000 arcs demonstrates the effectiveness of the proposed algorithm.
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Lenfers, Ulfia Annette, Nima Ahmady-Moghaddam, Daniel Glake, Florian Ocker, Jonathan Ströbele e Thomas Clemen. "Incorporating Multi-Modal Travel Planning into an Agent-Based Model: A Case Study at the Train Station Kellinghusenstraße in Hamburg". Land 10, n. 11 (3 novembre 2021): 1179. http://dx.doi.org/10.3390/land10111179.
Abstract (sommario):
Models can provide valuable decision support in the ongoing effort to create a sustainable and effective modality mix in urban settings. Modern transportation infrastructures must meaningfully combine public transport with other mobility initiatives such as shared and on-demand systems. The increase of options and possibilities in multi-modal travel implies an increase in complexity when planning and implementing such an infrastructure. Multi-agent systems are well-suited for addressing questions that require an understanding of movement patterns and decision processes at the individual level. Such models should feature intelligent software agents with flexible internal logic and accurately represent the core functionalities of new modalities. We present a model in which agents can choose between owned modalities, station-based bike sharing modalities, and free-floating car sharing modalities as they exit the public transportation system and seek to finish their personal multi-modal trip. Agents move on a multi-modal road network where dynamic constraints in route planning are evaluated based on an agent’s query. Modality switch points (MSPs) along the route indicate the locations at which an agent can switch from one modality to the next (e.g., a bike rental station to return a used rental bike and continue on foot). The technical implementation of MSPs within the road network was a central focus in this work. To test their efficacy in a controlled experimental setting, agents optimized only the travel time of their multi-modal routes. However, the functionalities of the model enable the implementation of different optimization criteria (e.g., financial considerations or climate neutrality) and unique agent preferences as well. Our findings show that the implemented MSPs enable agents to switch between modalities at any time, allowing for the kind of versatile, individual, and spontaneous travel that is common in modern multi-modal settings.
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Sun, Ruifen, Fengjie Xie, Sirui Huang e Yang Shao. "Construction and Characteristics Analysis of the Xi’an Public Transport Network Considering Single-Mode and Multi-Mode Transferring". Sustainability 16, n. 9 (3 maggio 2024): 3846. http://dx.doi.org/10.3390/su16093846.
Abstract (sommario):
The connectivity of the urban public transport network and the convenience of transfers between modes of transit are important factors that affect whether passengers choose public transport. Identifying the key nodes that affect network connectivity, direct access, transfers, and clarifying the main factors that restrict the network efficiency play important roles in improving the efficiency of the public transport network and establishing a “green city”. On this premise, this paper constructs two single-layer networks and a composite network that can reflect the transfer relationship between ‘bus–bus’, ‘metro–metro’, and ‘metro–bus’ based on the method of Space-P. The composite network realizes the integration study of homogeneous and heterogeneous stops, lines, and transfer relationships in the public transport network. At the same time, five kinds of centrality indexes are applied to the transport transfer network, and the significance of these indexes in the network is explained. Through the comprehensive analysis of these five types of indexes, the key nodes affecting the network connectivity, direct access and transfer efficiency, can be identified more accurately. Taking the public transport network of Xi’an as an example, the structural characteristics of the networks, including scale-free and small-world characteristics, were empirically analyzed. The main stops that play important roles in networks were identified based on the integrated centrality, degrees, and weight degrees. The research results showed the following: (1) Xi’an’s metro network, bus network, and metro–bus composite network all have scale-free and small-world characteristics. (2) The influence of the key stops of the metro network is concentrated, while the influence of the key stops of the bus network is scattered. (3) The public transport network in the first ring road area of Xi’an has the highest degree of direct access, and the core areas of the south, west, and north of Xi’an also have high direct access. However, the direct access in the area east of Xi’an is slightly lower. (4) Xi’an’s bus transport network covers a large area, showing the characteristics of a dual-core “central + southern” network. (5) The metro–bus composite network demonstrates a closer connection between stops and a more balanced network. (6) Finally, the degree of direct access to stops in the bus transport network and metro transport network shows the characteristics of “the single core is dominant, and the circle diffusion weakens step by step”.
9
Wang, Junye, Shin-En Pai e Jen-Te Pai. "Using Space-L complex network model for public transportation supply and demand analysis in Taipei metropolitan area". IOP Conference Series: Earth and Environmental Science 1157, n. 1 (1 aprile 2023): 012044. http://dx.doi.org/10.1088/1755-1315/1157/1/012044.
Abstract (sommario):
Abstract As an important means of transportation in modern cities, public transportation plays an important role in people’s travel and the economic development of urban areas Harvey 1971 [1]. Many researchers apply the complex network theory to urban public transport network, construct complex networks and view the operation of urban public transport from the perspective of complex networks. The study established a complex network model of BUS, MRT (metro), LRT (light rail) and Multi-vehicle. And based on the weighted analysis of the actual passenger traffic, the weighted complex network model which conforms to the actual travel characteristics is obtained, and the relationship between the public transport station and the surrounding land use in Taipei metropolitan area is discussed.
10
Munjal, Rashmi, William Liu, Xuejun Li, Jairo Gutierrez e Peter Han Joo Chong. "Multi-Attribute Decision Making for Energy-Efficient Public Transport Network Selection in Smart Cities". Future Internet 14, n. 2 (26 gennaio 2022): 42. http://dx.doi.org/10.3390/fi14020042.
Abstract (sommario):
Smart cities use many smart devices to facilitate the well-being of society by different means. However, these smart devices create great challenges, such as energy consumption and carbon emissions. The proposed research lies in communication technologies to deal with big data-driven applications. Aiming at multiple sources of big data in a smart city, we propose a public transport-assisted data-dissemination system to utilize public transport as another communication medium, along with other networks, with the help of software-defined technology. Our main objective is to minimize energy consumption with the maximum delivery of data. A multi-attribute decision-making strategy is adopted for the selction of the best network among wired, wireless, and public transport networks, based upon users’ requirements and different services. Once public transport is selected as the best network, the Capacitated Vehicle Routing Problem (CVRP) will be implemented to offload data onto buses as per the maximum capacity of buses. For validation, the case of Auckland Transport is used to offload data onto buses for energy-efficient delay-tolerant data transmission. Experimental results show that buses can be utilized efficiently to deliver data as per their demands and consume 33% less energy in comparison to other networks.
11
GIL, Eduardo Martínez, e Arturo Corbi VALLEJO. "Account based ticketing (ABT) integration for seamless multi-modal transport systems in smart cities". Smart Cities and Regional Development (SCRD) Journal 8, n. 2 (16 febbraio 2024): 73–80. http://dx.doi.org/10.25019/am7zzf87.
Abstract (sommario):
The digital transformation of urban transportation systems remains a critical challenge in Smart Cities' development. This paper addresses the pervasive issue of inadequate digitalization within public transportation systems. The paper highlights the promise of Account Based Ticketing (ABT) as a pivotal solution for integrating diverse public and private transportation modes allowing users to access different transportation services with a single account, without the need for new physical tickets or cards. ABT approach represents a breakthrough in seamlessly amalgamating various transportation operators' systems, transcending city limits into broader metropolitan spheres, and fostering integration and interoperability across transportation modes operated by disparate entities. Emphasizing beyond-city-scale integration, it explores the potential value of ABT to connect transportation networks extending into metropolitan influences. The proposed approach involves analyzing the implementation and functionality of ABT systems, underlining their capacity to overcome existing barriers in multi-modal transportation. The results anticipate enhanced accessibility, increased ridership, and streamlined user experiences, contributing to the realization of efficient and interconnected urban transport networks. This study not only underscores the value of ABT in revolutionizing contemporary transportation systems but also examines its broader implications for future urban planning and smart city development, highlighting the transformative potential and essential role that ABT plays in shaping the future of integrated transportation and Mobility as a Service in Smart Cities.
12
Peng, Yong, Zhiyao Mo e Song Liu. "Passenger’s routes planning in stochastic common-lines’ multi-modal transportation network through integrating Genetic Algorithm and Monte Carlo simulation". Archives of Transport 59, n. 3 (30 settembre 2021): 73–92. http://dx.doi.org/10.5604/01.3001.0015.0123.
Abstract (sommario):
In the urban transportation network, most passengers choose public transportation to travel. However, bad weather, accidents, traffic jams and other factors lead to uncertainty in transportation network. Besides, transport vehicles running on the same segments of routes and belonging to different modes or routes make the transportation network more complicated. In order to improve the efficiency of passenger’s travel, this paper aim to introducing an approach for optimizing passenger travel routes. This approach takes the travel cost and the number of transfers as constraints to finding the shortest total travel duration of passenger in urban transporta-tion network. The running duration and dwell duration of the vehicles in the network are uncertain, and the vehicles are running according to the timetables. As transportation modes, bus, rail transit and walk are consid-ered. In terms of methodological contribution, this paper combines Genetic Algorithm (GA) and Monte Carlo simulation to deal with optimization problem under stochastic conditions. This paper uses Monte Carlo simula-tion to simulate the running duration and dwell time of vehicles in different scenarios to deal with the uncertainty of the network. The shortest path of passenger’s travel is solved by GA. Two kinds of population management strategies including single population management strategy and multiple population management strategy are designed to guide the solution population evolving process. The two kinds of population management strategies of GA are tested in numerical example. The satisfactory convergence performance and efficiency of the model and algorithm is verified by the numerical example. The numerical example also demonstrated that the multiple population management strategy of GA can get better results in a shorter CPU time. At the same time, the influ-ences of some significant variables on solution are performed. This paper is able to provide a scientific quantita-tive support to the path scheme selection under the influence of common-lines and timetables of different modes of transportation in stochastic urban multimodal transportation network.
13
Chen, Xinyuan, e Inhi Kim. "Modelling Rail-Based Park and Ride with Environmental Constraints in a Multimodal Transport Network". Journal of Advanced Transportation 2018 (4 ottobre 2018): 1–15. http://dx.doi.org/10.1155/2018/2310905.
Abstract (sommario):
Environmental sustainability is a significant aspect in the sustainable development of modern urban cities, especially in the road transport system. As traffic demands increase, public transport requires more promotion to accommodate the increasing travel demands while maintaining the environmental quality. Public transport, however, is less attractive in vast suburb areas mainly due to its longer travel distance and waiting time. Therefore, this paper proposes a rail-based Park-and-Ride (RPR) scheme to promote public transport in the multimodal transport network. To remedy the heterogeneous distribution of vehicle pollutants in the network, regulations in environmental sensitive districts are required and studied in this paper. To quantitatively evaluate and analyse this joint RPR and environmental regulation strategy in multimodal transport systems, this paper develops an environmental constrained combined modal split and traffic assignment (EC-CMSTA) model. The proposed formulation adopts the concept of fix-point to reformulate the nonlinear complementarity conditions associated with the combined modal split and user equilibrium conditions, which is subsequently incorporated into a VI formulated nonlinear complementarity conditions associated with environmental constraints. The proposed VI formulation can handle a general constraint structure, which enhances the modelling adaptability and flexibility. The strictly monotone and Lipschitz continuity properties of this model are rigorously proved, giving rise to efficient algorithms for the model. A customized projection based self-adaptive gradient projection (SAGP) algorithm is then developed. Numerical studies demonstrate that the EC-MSTA model could enhance the behavioural modelling of network users’ travel decisions and assist in quantitatively evaluating the effectiveness of RPR schemes and environmental regulations.
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Ušpalytė-Vitkūnienė, Rasa, Edita Šarkienė e Daiva Žilionienė. "Multi-criteria Analysis of Indicators of the Public Transport Infrastructure". Promet - Traffic&Transportation 32, n. 1 (12 febbraio 2020): 119–26. http://dx.doi.org/10.7307/ptt.v32i1.3175.
Abstract (sommario):
Public transport is a key element of sustainable transport in medium and large cities. Therefore, it is important that city residents want to use it. This paper aims to determine the criteria of the public transport infrastructure which have the most influence on passenger satisfaction with the public transport system. The criteria of public transport infrastructure of stops, vehicles, and route network were analysed. The primary attention was focused on rating these criteria from the most to the least important one. The analysis of scientific papers, specialized literature, Europe Union regulations, Lithuanian legislation, and recommendations were used to explore the necessary criteria that have a significant effect on the popularity of public transport, its functionality and gives a reference on how to raise the willingness of the citizens to use public transport. The experts (14 experts were involved) and social surveys (440 respondents were involved) were used to identify the evaluation criteria of public transport infrastructure and to investigate the state of these criteria. These criteria were grouped into three larger groups according to their nature (public transport infrastructure of stops, vehicles and route network) and were rated and prioritized by the multi-criteria analysis. The results reflect the priorities of criteria parameters of public transport infrastructure. The results show that when investing in public transport infrastructure, the main priority should be attributed to the infrastructure elements, such as public transport priority in the streets, then shelters, lighting, cleanness of bus stops and vehicles, which are physically appreciable. These parameters have the most significant impact on improving the level of service of public transport infrastructure in urban areas.
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Li, Zhibin, Junfeng Jiao e Chuan Ding. "Introduction to special issue: Innovations for transport planning in China". Journal of Transport and Land Use 13, n. 1 (12 novembre 2020): 409–12. http://dx.doi.org/10.5198/jtlu.2020.1834.
Abstract (sommario):
We planned this special issue in response to the new opportunities and innovations for urban transport planning in China all of which can help build the smart transportation systems of the future. In preparation for the special issue, we organized the 19th COTA International Conference of Transportation Professionals (CICTP2019) with the theme of “Transportation in China 2025” in July 2017 and recommended high-quality submissions to this special issue. In the end, we received a total of 24 valid papers. After the standard peer-review process, we accepted eight papers for the special issue, with three focusing on built environment and travel activity, three focusing on road network distribution, and two focusing on data-driven traffic modeling. The special issue also has a well-balanced research focus on different types of transport modes, with two papers on multi-modal transport, three on personal cars, two on public bikes, and one on pedestrians.
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Cao, Bo, e Abdol Aziz Shahraki. "Planning of Transportation Infrastructure Networks for Sustainable Development with Case Studies in Chabahar". Sustainability 15, n. 6 (14 marzo 2023): 5154. http://dx.doi.org/10.3390/su15065154.
Abstract (sommario):
This article addresses the problem of increasing transport services that intercontinental corridors demand from the urban infrastructure networks along their routes. Yet, attention has not been paid to the coordination between the transportation potentials of a city infrastructure network located on the path of an intercontinental corridor and the sustainable application of the corridor itself. This article discusses solving this problem by increasing the transportation capacities of the cities on the path of the corridor. With field studies in Chabahar, we observe the situation of its transportation infrastructure network to discover shortcomings and suggest required changes. This paper recommends the necessary changes and improvements in the urban transportation system of Chabahar to have a sustainable intercontinental corridor and an effective urban infrastructure network simultaneously. The research methods used include observation of traffic flow and behavior in travel origins, destinations, and paths in Chabahar. Then, this study builds a mathematical model with a graph technique to calculate the traffic capacities on the nodes and streets and determine places that require changes. Analyses show that 13,420 cars enter just the center of Chabahar city due to the increasing pressure of the Chabahar–Milak corridor. This paper recommends a multi-modal transportation system with an urban public transport network. It also suggests physical and geometric corrections in sight distances and longitudinal curves of streets, sidewalks, and squares. We find urban transportation failures in the city and present a comprehensive transportation plan for its improvement. This model is applicable in all cities on the route of corridors and assists their sustainable function and urban transport system simultaneously.
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Shabrina, Salsa, e Siti Nurlaela. "Komparasi Tingkat Aksesibilitas Jaringan Transportasi Publik bagi Pekerja Ulang-Alik di Kawasan Surabaya Metropolitan Area". TATALOKA 23, n. 3 (31 agosto 2021): 363–76. http://dx.doi.org/10.14710/tataloka.23.3.363-376.
Abstract (sommario):
The movement of commuter workers in Surabaya Metropolitan Area is dominated by private transportation modes users. Most commuter workers do not use public transportation for several accessibility reasons, such as long travel time (33.9%) and less practicality (32.7%). Previous research has been undertaken to encourage modal shifting from the perspective of workers as travelers. This type of researches emphasis more on exploring what factors can be intervened in order to make a modal shift from private vehicles to public transportation. What is not yet known is what causes the lack of competitiveness of public transportation. Namely, there are no studies that measure the level of accessibility of the public transportation network and the factors that influence it. This study aims to determine the factors that affect accessibility of public transportation networks for commuter workers in Surabaya Metropolitan Area based on a comparison of the level of accessibility in Sidoarjo-Surabaya and Gresik-Surabaya areas. The results of the study show that the level of accessibility in Surabaya Metropolitan Area is influenced by travel impedances, public transport routes, travel times, and the frequency of public transportation. Accessibility in Sidoarjo-Surabaya area can be improved by adding 1 public transport route in Gedangan District and increasing the frequency of public transportation to 4 units per hour in Waru and Sedati Districts. Whereas in Gresik-Surabaya area, accessibility can be improved through the addition of 1 public transport route in Menganti District and increasing the frequency of public transportation to 4 units per hour in Cerme District.
18
Ye, Qian, Xiaohong Chen, Hua Zhang, Junjie Cai e Kaan Ozbay. "Demonstration of Participation Networks in Urban Transport Policy of Public and Private Sectors through Social Media: The Case of Bike-Sharing Pricing Strategy in China". Journal of Advanced Transportation 2021 (27 aprile 2021): 1–15. http://dx.doi.org/10.1155/2021/8881106.
Abstract (sommario):
Social media has become a valuable platform that enables public and private stakeholders to participate and interact in various transport policies. Using a network-based perspective and a case study of bike-sharing pricing strategies in China, this paper aims to quantitatively characterize the pattern and structure of multi-stakeholders engagement networks. Furthermore, this paper also empirically examines the confirmation bias that might exist among participants. Dataset on retweets from the Chinese Twitter-Sina Weibo is collected. Results reveal two types of important actors with unequal roles in terms of information diffusion: the “network root” and the “network bridge.” The former is mainly comprised of organizations and influential individuals who dominate message sharing, whereas the latter is comprised of the general public with various occupational backgrounds who control the efficiency and the scope of information spreading. The result also reveals a hierarchical structure in both networks and a community gathering like-minded individuals. The empirical result also demonstrates the existence of echo chambers in the transport participation network of governments and enterprises. Most echo chambers operate such that organizations or influential individuals amplify the views of the general public with more critical viewpoints. These findings of this study can assist transport stakeholders in crafting more sustainable strategies based on the understanding of uneven patterns in online public participation. Furthermore, this study sheds insights on how social media could be used to facilitate the collection of diverse people’s opinions and the evaluation of multi-stakeholder engagement for major transport issues.
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Lin, Gang, Honglei Xu, Shaoli Wang, Conghua Lin e Chenyu Huang. "Performance Optimisation of Public Transport Networks Using AHP-Dependent Multi-Aspiration-Level Goal Programming". Energies 15, n. 17 (5 settembre 2022): 6479. http://dx.doi.org/10.3390/en15176479.
Abstract (sommario):
This study proposes an optimisation approach to improve multiple-criteria aspiration-level public transportation performance by combining public transport criteria matrix analytic hierarchy process (PTCM-AHP) models and multi-aspiration-level goal programming. The approach uses the PTCM-AHP to calculate the system weights. Based on the weight values, the approach combines the multi-aspiration goal-level selection process in three different ways. The proposed approach was used to optimise public transportation networks in Bayswater, Cockburn, and Stonnington, Australia, to demonstrate the public transportation network performance optimisation process. By controlling the criteria goal value interval, this new approach combines decision-making plans and strategies to optimise various scenarios. The optimisation outcomes can be applied to provide guidelines for improving the performance of public transportation networks.
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Ranceva, Justina, e Rasa Ušpalytė-Vitkūnienė. "Specifics of Creating a Public Transport Demand Model for Low-Density Regions: Lithuanian Case". Sustainability 16, n. 4 (7 febbraio 2024): 1412. http://dx.doi.org/10.3390/su16041412.
Abstract (sommario):
A transport model usually consists of a demand model and an available transport network model. The purpose of this article is to identify the key specifics for the development of a regional public transport (PT) demand model and to point out the differences from the urban PT demand model. The traditional four-step transport planning demand model consists of trip generation, trip distribution, modal split, and assignment. This article consists of PT model development, calibration, and validation. A PTV VISUM macroscopic modeling program is used for this research. As a result, this article presents basic suggestions for how a PT demand model should be developed in regions. The presented suggestions for developing a PT demand model can be applied to any low-density region. The rest of the article is structured as follows: (1) Background: presents a literature analysis of the four-step model, modal splits, and the features of the PTV VISUM program; (2) Methods: describes the considered region of Lithuania and the data of the developed model; describes the four-step model, which is adapted to the Lithuanian region; (3) Results: presents the results and main suggestions for creating a PT demand model; and (4) Conclusions: presents the main conclusions of the study.
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Gao, Wenyuan, Chuyun Zhao, Yu Zeng e Jinjun Tang. "Exploring the Spatio-Temporally Heterogeneous Impact of Traffic Network Structure on Ride-Hailing Emissions Using Shenzhen, China, as a Case Study". Sustainability 16, n. 11 (27 maggio 2024): 4539. http://dx.doi.org/10.3390/su16114539.
Abstract (sommario):
The rise of ride-hailing services presents innovative solutions for curbing urban carbon emissions, yet poses challenges such as fostering fair competition and integrating with public transit. Analyzing the factors influencing ride-hailing emissions is crucial for understanding their relationship with other travel modes and devising policies aimed at steering individuals towards more environmentally sustainable travel options. Therefore, this study delves into factors impacting ride-hailing emissions, including travel demand, land use, demographics, and transportation networks. It highlights the interplay among urban structure, multi-modal travel, and emissions, focusing on network features such as betweenness centrality and accessibility. Employing the COPERT (Computer Programme to Calculate Emissions from Road Transport) model, ride-hailing emissions are calculated from vehicle trajectory data. To mitigate statistical errors from multicollinearity, variable selection involves tests and correlation analysis. Geographically and temporally weighted regression (GTWR) with an adaptive kernel function is designed to understand key influencing mechanisms, overcoming traditional GTWR limitations. It can dynamically adjust bandwidth based on the spatio-temporal distribution of data points. Experiments in Shenzhen validate this approach, showing a 9.8% and 10.8% increase in explanatory power for weekday and weekend emissions, respectively, compared to conventional GTWR. The discussion of findings provides insights for urban planning and low-carbon transport strategies.
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Tyrinopoulos, Yannis, e Constantinos Antoniou. "Analysis of Passengers' Perception of Public Transport Quality and Performance". International Journal of Information Systems and Supply Chain Management 7, n. 1 (gennaio 2014): 56–72. http://dx.doi.org/10.4018/ijisscm.2014010104.
Abstract (sommario):
This research investigates the passengers' level of satisfaction from the use of diverse public transport systems. The aim is to uncover factors that drive their modal choices and to assess the quality implications of the variability of the users' perceived satisfaction through the use of two statistical methods (ordered logit and linear mixed models) and comprehensive diagrammatic techniques. Five transit systems in the two major cities in Greece, Athens and Thessaloniki, have been examined. The analysis demonstrated that the most important satisfaction attributes are service frequency, followed by waiting conditions and network coverage, punctuality and in-vehicle transport conditions. A gender-based market segmentation analysis provided further insight into the differences among groups of the population. According to this analysis, female respondents tend to place their attention on punctuality, waiting conditions and driver behavior, while male respondents on in-vehicle transport conditions and the existence and quality of transfer information.
23
Hassan, Sitti Asmah, Intan Nurfauzirah Shafiqah Hamzani, Abd Ramzi Sabli e Nur Sabahiah Abdul Sukor. "Bus Rapid Transit System Introduction in Johor Bahru: A Simulation-Based Assessment". Sustainability 13, n. 8 (15 aprile 2021): 4437. http://dx.doi.org/10.3390/su13084437.
Abstract (sommario):
Bus rapid transit (BRT) is one of the strategies to promote improvements in urban mobility. In this study, BRT scenarios, which integrate exclusive bus lanes and bus priority signal control in mixed traffic scenarios, were modelled using a VISSIM microsimulation. Three scenarios of BRT were modelled to represent 16:84, 38:62 and 54:46 modal splits between public transport and private vehicles. It was found that Scenario 4 (the 54:46 scenario) offers better benefits in terms of delay time saving and economic benefits. In general, it was found that the BRT system enhances the functioning of the transport system and provides people with faster and better mobility facilities, resulting in attractive social and economic benefits, especially on a higher modal split of public transport. It is regarded as one strategy to alleviate traffic congestion and reduce dependency on private vehicles. The finding of this study provides an insight on the effective concept of the BRT system, which may promote the dissemination of an urban mobility solution in the city. The results can help policymakers and local authorities in the management of a transport network in order to ensure reliable and sustainable transport.
24
Yang, Haihua, e Shi An. "Robustness evaluation for multi-subnet composited complex network of urban public transport". Alexandria Engineering Journal 60, n. 2 (aprile 2021): 2065–74. http://dx.doi.org/10.1016/j.aej.2020.12.016.
25
Bityukova, V. R., N. A. Mozgunov e N. V. Petukhova. "Vehicle Рollution Modern Tendencies in the Regional Centers of the Central Federal District: Multi-scale Analysis". Ecology and Industry of Russia 24, n. 2 (26 febbraio 2020): 57–63. http://dx.doi.org/10.18412/1816-0395-2020-2-57-63.
Abstract (sommario):
There are considered changes of automotive transports’ emission volumes factors on different territorial level. The emissions’ dynamic in Central Federal district and in Moscow was shown. At the local level the determining factor in vehicle pollutions’ is changing in building density and transport and planning structure. Pollution reduction in Moscow has a center-peripheral gradient and occurs in areas where the road network transformation is combined with the development of the public transport system.
26
Fierek, Szymon, Hanna Sawicka e Piotr Sawicki. "The impact of mass transit schedules on the modal split". WUT Journal of Transportation Engineering 120 (1 marzo 2018): 93–109. http://dx.doi.org/10.5604/01.3001.0014.4729.
Abstract (sommario):
The paper deals with the problem of the impact analysis of mass transit system timetables parameters on the modal split, which is reflected in a traffic model. A typical criterion of selecting transport mode in this kind of model is a journey time, which is mostly moderated by an individual transport. It mostly results from infrastructure parameters and the travel demand, both defining the traffic conditions in the whole transport network. Considering mass transit system, a journey time derivates from timetable (or frequency of running), which is first defined by the operator and then reflected in the traffic model. As a consequence, this modelling practice makes the journey time via mass transit system independent from general traffic volume reflected in the model. Thus, the authors have started a pilot study on this phenomenon. They have proposed a relationship between an acceptable change in traffic conditions of the traffic model and a resulted difference of a journey time of public transport vs. individual one. On this basis, the concept of a stable modal split was formulated, and it is experimentally tested.
27
Rosnaeni, Rosnaeni, e Imam Buchori. "Analisis Pemilihan Moda Transportasi Penduduk Kelurahan Pabuaran-Cibinong Pasca Pengoperasian Kereta Komuter (KRL) Jalur Nambo (Cibinong) – Citayam – Jakarta". JURNAL PEMBANGUNAN WILAYAH & KOTA 13, n. 4 (1 dicembre 2017): 503. http://dx.doi.org/10.14710/pwk.v13i4.18268.
Abstract (sommario):
Congestion in Cibinong areas is mainly caused by highly vehicle usage, while the supply of road network is very limited. therefore it is needed a modal shift from private vehicles and optimizing the role of mass public transport (railway). This study aims to determine the modal choice of Pabuaran community, after the operational of commuterline (KRL) lane Nambo (Cibinong) - Citayam - Jakarta. This study uses a simple descriptive method to identify the factors that influence the mode choice of Pabuaran community, crosstab analysis method to identifying the movement of population, and binary logistic models to analyze the probability the change transport modes of Pabuaran community. The result of this study show that the probability of potential users for using commuterline are 91%, it is influenced by several factors such as the distance of the settlement to the station, travel time, travel expenses, employment status and the existence of public transport/feeder to the station. The improvement of railway services in Cibinong station such as an increase in the frequency, timeliness, travel time, expected to attract the community to using rail services in their activities.
28
Viri, Riku, Nina Sievers, Heikki Liimatainen, Christoph Schütze e Thomas Siefer. "Tram Expansion Effects on Reaching the City Centres—Case Study of Tampere and Braunschweig". Future Transportation 2, n. 4 (28 settembre 2022): 793–807. http://dx.doi.org/10.3390/futuretransp2040044.
Abstract (sommario):
This manuscript is based on cooperation between the universities in Tampere, Finland and Braunschweig, Germany. New tram lines are being built or extended in both cities to provide better connections to public transportation and increase accessibility. This research presents case studies from each city that have successfully increased public transport (PT) ridership during recent years. The aim of this study is to compare and analyse the effects of tram expansion projects in Tampere and Braunschweig from the public transport network users’ viewpoint. These cities were selected because they are of similar size in terms of population and have similar modal shares of PT. Changes in accessibility to the city centres were analysed considering the tramline extensions. This was determined by calculating the travel time differences of the current network and the future network for both cities. For this total travel time, the ArcGIS Pro Service Area Tool was used to calculate the time taken to reach every grid of the investigation areas. The results vary due to the tram expansion and changes in the existing bus network.
29
Bertoldo, Silvano, Lorenzo Carosso, Emanuele Marchetta, Miryam Paredes e Marco Allegretti. "Feasibility Analysis of a LoRa-Based WSN Using Public Transport". Applied System Innovation 1, n. 4 (10 dicembre 2018): 49. http://dx.doi.org/10.3390/asi1040049.
Abstract (sommario):
LoRa (Long Range) is a proprietary radio communication technology exploiting license-free frequency bands, allowing low-rate information exchange over long distances with very low power consumption. Conventional environmental monitoring sensors have the disadvantage of being in fixed positions and distributed over wide areas, thus providing measurements with a spatially insufficient level of detail. Since public transport vehicles travel continuously within cities, they are ideal to house portable monitoring systems for environmental pollution and meteorological parameters. The paper presents a feasibility analysis of a Wireless Sensor Network (WSN) to collect this information from the vehicles conveying it to a central node for processing. The communication system is realized by deploying a layer-structured, fault-resistant, multi-hop Low Power Wide Area Network (LPWAN) based on the LoRa technology. Both a theoretical study about electromagnetic propagation and network architecture are addressed with consideration of potential practical network realization.
30
Lebedeva, Ol'ga, e Ekaterina Savvateeva. "INCREASING THE EFFICIENCY OF THE URBAN NETWORK THROUGH THE APPLICATION OF A MULTI-CRITERIA PUBLIC TRANSPORT ASSESSMENT MODEL". Scientific Papers Collection of the Angarsk State Technical University 2023, n. 1 (5 luglio 2023): 154–59. http://dx.doi.org/10.36629/2686-7788-2023-1-154-159.
Abstract (sommario):
Public urban public transport plays an important role in the implementation of sustainable urban development programs. Performance analysis has become an important element in the road transport industry as part of the economic development of the region, covering time, costs, quality of transport services provided, user satisfaction and financial results. Evaluation metrics and monitoring help ensure proper resource management and cost control. In this context, methods for measuring the effectiveness of the public transport network through multi-criteria assessment are considered
31
Fadeev, A. I., A. M. Iliankov e V. V. Ukaderov. "Correspondence distribution over a network in designing public urban passenger transportation tasks". Russian Automobile and Highway Industry Journal 20, n. 3 (17 luglio 2023): 362–86. http://dx.doi.org/10.26518/2071-7296-2023-20-3-362-386.
Abstract (sommario):
Introduction. The process of planning public transport is divided into a few number of tasks in strategic, tactical and operational levels, which include the development route system, the establishment of traffic intensity along routes, the design of the structure of road transport vehicles, the distribution of the current road transport vehicles along the routes, determining the required amount of the subsidies, etc. Materials and methods. The article presents a multi-criteria mathematical model of transportation design, according to which the tasks have been solved by distributing (limited or unlimited) transport resources between the permissible routes of the transport network in accordance with a variety of efficiency criteria, which can be the subject to appropriate restrictions. The formation acceptable routes on the transport network can be carried out by means of the algorithms developed, for example, in the framework of solving TNDP and TNDFSP tasks. The routes can also be adjusted by experts. Transport demand is set by a matrix of passenger correspondence generated for the entire period of traffic on a weekday, to ensure that all passenger flows along the route network are taken into account, and not only the periods of the greatest traffic intensity. The calculation of the parameters of the transport offer in the process of solving the problems of transportation design is carried out based on the results of the passenger correspondence distribution on the route network (PAP), which is a complex problem unsolved today. The article describes the developed PAP methodology based on a flexible passenger strategy that takes into account the waiting time for transport, the proximity of the route through an empirical model of dividing demand by the length of trips, the preferences of transport modes, the possible redistribution of passenger flows between the stopping points of the network located within a walking distance. Results. The tasks of designing public transport transportation have been formulated, a multi-criteria mathematical model of their solution has been developed. The method of distribution of passenger flows on the route network based on a flexible passenger strategy has been described. The effectiveness of the developed PAP methodology is shown on test calculations, which were carried out using passenger correspondence, an average weekday in October 2019, obtained by processing validations of e-tickets of urban passenger transport in Krasnoyarsk. Discussion and conclusion. The practical implementation of the described methodology for the distribution of passenger flows on the route network using relational database management systems (DBMS) MS SQL Server has been carried out.
32
Kilani, Moez, Ngagne Diop e Daniel De Wolf. "A Multimodal Transport Model to Evaluate Transport Policies in the North of France". Sustainability 14, n. 3 (28 gennaio 2022): 1535. http://dx.doi.org/10.3390/su14031535.
Abstract (sommario):
We developed a passenger transport model for the North of France and used it to discuss the impacts of some policies focusing on the limitations of polluting gas emissions and congestion. The model is calibrated for the North of France and includes both urban and intercity trips. Four transport modes are considered: walking, biking, public transport and private cars. To some extent, the combination of these modes is possible. The model is calibrated to match mode shares and the dynamic of congestion along a full day. The simulations are conducted within the MATSim framework. We evaluate the impacts, on traffic flows and polluting gas emissions, of two pricing reforms: free public transport and road pricing in city center of Lille (the main metropolitan area in the study region). Free public transport yields a significant modal shift towards public transport, resulting in a reduction in the usage of private cars. The road pricing scheme we have considered results in similar impacts but with limited magnitude. Overall, a significant reduction in congestion and emissions of pollutant gases can be obtained by applying convenient pricing reforms. Since we use an agent-based model, we are able to identify the specific location of the main impacts on the network.
33
Lin, Gang, Honglei Xu, Shaoli Wang, Conghua Lin, Fan Zhang e Junxiang Zhu. "Navigating Uncertainty: A Framework for Optimising Public Transport Networks’ Performance". Sustainability 16, n. 3 (4 febbraio 2024): 1325. http://dx.doi.org/10.3390/su16031325.
Abstract (sommario):
Public transport (PT) networks face significant challenges in achieving optimal outcomes due to the presence of risk and uncertainty. Despite the importance of optimising PT networks’ performance, limited research has applied risk management tools to tackle this issue. In response, this study presents a three-stage framework to optimise PT networks’ performance in uncertain conditions. First, we establish a PT criteria matrix using an analytic hierarchy process to develop a criteria model and calculate the criteria weightings. Second, we propose a multi-aspiration-level goal programming approach to optimise a PT network’s performance based on the weighted results. To manage uncertainty, we use Monte Carlo simulation to analyse the probability of the optimal solution. Finally, to validate our approach, we apply the three-stage framework to three case study areas in Australia. The results of this research offer significant insights into identifying the likelihood of criteria optimisation scenarios, thereby assisting decision makers in allocating resources for optimising the delivery of PT network performance solutions in accordance with government requirements.
34
Ogar, Tatyana Petrovna, Ilya Viktorovich Stepanchenko, Elena Georgievna Krushel, Alexander Eduardovich Panfilov e Ivan Mikhailovich Kharitonov. "Analyzing data on public transport network structure (case of Volgograd)". Vestnik of Astrakhan State Technical University. Series: Management, computer science and informatics 2022, n. 1 (31 gennaio 2022): 33–41. http://dx.doi.org/10.24143/2073-5529-2022-1-33-41.
Abstract (sommario):
The paper is focused on collecting and analyzing the data on the population density in the districts of
a megapolis was carried out. Each district is further divided into sections to improve the accuracy of the study. The analysis of data on the location of passenger public transport stops in residential areas and areas with socially significant objects was carried out. Visualization of the analysis results was performed by superimposing isochronous accessibility of the main objects of attracting passengers onto the map of the city. Using the algorithm of the minimum cstop of the way there have been found the points of destination in all the routes of the public transport network, which the passenger will be able to reach in 15 or 30 minutes. The route network is presented as a graph, whose vertices are public transport stops. The weights of the graph correspond to the travel time from one stop to another. The shortest paths between all vertices of the graph have been found. The Floyd-Warshell algorithm is selected for calculations. The obtained data are prepared for using them in the transport network model to solve a multi-criteria optimization problem. When adding a new vertex, it becomes possible to calculate a new route with minimal time cstops. Based on the results of the study, the initial data were prepared for constructing a model for generating data on the passenger traffic of urban land transport.
35
Sharma, Satish, Somesh Bhattacharya, Deep Kiran, Bin Hu, Matthias Prandtstetter e Brian Azzopardi. "Optimizing the Scheduling of Electrified Public Transport System in Malta". Energies 16, n. 13 (30 giugno 2023): 5073. http://dx.doi.org/10.3390/en16135073.
Abstract (sommario):
In this paper, we describe a comparative analysis of a bus route scheduling problem as part of timetable trips. We consider the current uptake of electric buses as a viable public transportation option that will eventually phase out the diesel-engine-based buses. We note that, with the increasing number of electric buses, the complexity related to the scheduling also increases, especially stemming from the charging requirement and the dedicated infrastructure behind it. The aim of our comparative study is to highlight the brevity with which a multi-agent-system-based scheduling method can be helpful as compared to the classical mixed-integer linear-programming-based approach. The multi-agent approach we design is centralized with asymmetric communication between the master agent, the bus agent, and the depot agent, which makes it possible to solve the multi-depot scheduling problem in almost real time as opposed to the classical optimizer, which sees a multi-depot problem as a combinatorial heuristic NP-hard problem, which, for large system cases, can be computationally inefficient to solve. We test the efficacy of the multi-agent algorithm and also compare the same with the MILP objective designed in harmony with the multi-agent system. We test the comparisons first on a small network and then extend the scheduling application to real data extracted from the public transport of the Maltese Islands.
36
Mohd Said, Mohd Shahmy, e David Forrest. "Classifying the Diversity of Bus Mapping Systems". Proceedings of the ICA 1 (16 maggio 2018): 1–7. http://dx.doi.org/10.5194/ica-proc-1-78-2018.
Abstract (sommario):
This study represents the first stage of an investigation into understanding the nature of different approaches to mapping bus routes and bus network, and how they may best be applied in different public transport situations. In many cities, bus services represent an important facet of easing traffic congestion and reducing pollution. However, with the entrenched car culture in many countries, persuading people to change their mode of transport is a major challenge. To promote this modal shift, people need to know what services are available and where (and when) they go. Bus service maps provide an invaluable element of providing suitable public transport information, but are often overlooked by transport planners, and are under-researched by cartographers. The method here consists of the creation of a map evaluation form and performing assessment of published bus networks maps. The analyses were completed by a combination of quantitative and qualitative data analysis of various aspects of cartographic design and classification. This paper focuses on the resulting classification, which is illustrated by a series of examples. This classification will facilitate more in depth investigations into the details of cartographic design for such maps and help direct areas for user evaluation.
37
Leng, Nuannuan, Zhengwen Liao e Francesco Corman. "Role of Timetable, Rolling Stock Rescheduling, and Information Strategies to Passengers in Public Transport Disruptions". Transportation Research Record: Journal of the Transportation Research Board 2674, n. 9 (22 giugno 2020): 135–47. http://dx.doi.org/10.1177/0361198120927000.
Abstract (sommario):
In the event of public transport disruption, operating companies produce disposition timetables depending on different rescheduling strategies, such as retiming or rerouting, with services fully/partially cancelled, and also taking into account more complex, adjusted, feasible rolling stock circulation. The aim is to reduce passengers’ delays, thereby limiting detriment to passengers’ activities and their related satisfaction. The key relation between the supply of operating companies and passengers’ satisfaction is information disseminated about running services. This paper innovatively combines an optimization model and an agent-based micro-simulation model (MATSim) to explore passengers’ (dis)satisfaction with different disposition timetables and information strategies, which is helpful for operating companies to offer better services to passengers in cases of public transport disruption. Activity-based agent behaviors in a multi-modal network are simulated and agents’ delays and scores for the city of Zürich, Switzerland, analyzed. Passengers’ (dis)satisfaction is indicated by their delays in the directly affected (i.e., disrupted) trip and utility for their whole trips and activities estimated by a score function. Disruption results in immediate delays for passengers whose planned services fail to run, plus delays for passengers on the line where extra services are planned to run (rerouted). The earlier information on the disposition timetable is disseminated to passengers, the higher their satisfaction during disruption. Compared with full cancellation of train services, computing a precise feasible rolling stock circulation able to handle partial train cancellations can significantly benefit passengers, especially those whose planned services are disrupted, against minor delays incurred by other group of passengers.
38
Tampieri, Laura, e Paolo Canonico. "NETWORK ANALYSIS FOR PERFORMANCE CONTROL IN THE GOVERNANCE OF INTERCONNECTED LOCAL TRANSPORT COMPANIES". International Journal of Strategic Property Management 22, n. 4 (7 agosto 2018): 290–99. http://dx.doi.org/10.3846/ijspm.2018.3686.
Abstract (sommario):
This paper discusses a network-analysis approach to the performance control of integrated built-environment systems based on efficiency, effectiveness, and adequacy. We apply this perspective to the governance of systems of local transport companies in built environments, which are frequently organized as networks. To this end, we propose a multi-dimensional grid of first- and second-order ties to locate network units and individuate the adequacy or appropriateness of network structures for performance control. In this field, issues connected to transport systems such as sustainability play a crucial role in defining structures and processes of network performance control. We empirically examine a pilot case of local public transport companies in the Forlì-Cesena area (Italy), testing network adequacy and giving evidence for the optimal localization of governance among units dedicated to providing transport services. Our results also support the hypothesis that, although structural centralization was ostensibly oriented towards increasing governance, the structure actually devolved into decentralized control at the periphery of the network, diminishing the effectiveness of initiatives.
39
Reggiani, Aura, e Luca Zamparini. "Evaluation of Infrastructure Investments: The Case of the Southern Italian Transport Network". SCIENZE REGIONALI, n. 3 (novembre 2010): 43–74. http://dx.doi.org/10.3280/scre2010su3003.
Abstract (sommario):
The EU Community Support Framework (CSF), in the transport sector, aims at implementing a sustainable network characterised by a more balanced modal split and by integrated connectivity among the transport nodes. This study provides a concise description of the CSF, PON and POR programmes and tests - by means of a multicriteria approach - the degree of coherence among them. The results highlight that the strategy pursued during the 2001-2006 period sought to strengthen some priority nodes located in the TEN-T network and that there is a marked heterogeneity between the PON projects and the POR projects.
40
Zhong, Wei, Zhicai Juan, Fang Zong e Huishuang Su. "Hierarchical hub location model and hybrid algorithm for integration of urban and rural public transport". International Journal of Distributed Sensor Networks 14, n. 4 (aprile 2018): 155014771877326. http://dx.doi.org/10.1177/1550147718773263.
Abstract (sommario):
Integration of urban and rural infrastructure is critical to integrating urban and rural public transport. A public transport hub is an important element of infrastructure, and it is the key facilities that serve as transferring points between cities and towns. The location of hub is related to the convenience of travel for urban and rural residents and the closeness of economic interactions between urban and rural areas. In this article, considering the background of the integration of urban and rural public transport, from the perspective of public transport hubs in urban and central town, a multi-level hub-and-spoke network is designed, and the location of integration of urban and rural public transport hub is determined. Based on the connection associated with central towns and the capacity constraints of hubs and to achieve the minimum total cost, this article proposes a mixed-integer programming model that employs a genetic and tabu search hybrid optimization algorithm to validate and analyze, which used the urban and rural public transport data from a specified area of Shandong province in China. The results indicate that the model can simultaneously determine locations for hubs in cities and central towns while minimizing total cost. The hub capacity constraint significantly influences the location of two-level hubs. The hub capacity constraint in the model can reduce the transportation cost for an entire network and optimize the transportation network. This study on urban and rural public transport hub location in a hub-and-spoke network not only reduces the transportation cost of the network but also completes and supplements the location theory of integration of urban and rural public transport.
41
Saxena, Aditya, Vallary Gupta e Bhavna Shrivastava. "An Assessment of Public Transport Accessibility Levels for Slums in Bhopal". International Journal of Engineering and Advanced Technology 10, n. 5 (30 giugno 2021): 252–58. http://dx.doi.org/10.35940/ijeat.e2786.0610521.
Abstract (sommario):
Good connectivity and accessibility ensure inclusivity of public transport system which is an indicator of a fair society. The modal shift of commuters towards public transit services depends majorly on its accessibility levels. To ensure that commuters have equal opportunities to access jobs, education, and other services, PTAL (public transit accessibility level) is often evaluated. Public transport accessibility levels are a detailed and an accurate measure of accessibility of a point to the public transport network which considers walk access time and service availability. Public transportation is often referred to as an affordable model for every section of society due to its cheap fare price. The major question lies in the inclusivity of public transit services for the economically weaker section of society whether or not public transportation is available and accessible for those who need it or those who cannot afford other mobility services. The present study intends to focus on affordable and inclusive transportation for economically weaker sections. The study is an attempt to assess the issues with public transport services in the city of Bhopal, India for economically backward areas like slums. The research will help in understanding the accessibility level of currently available public transit services by evaluating the PTAL (public transit accessibility level) for socially backward.
42
Lebedeva, Ol'ga. "THE PROBLEM OF OPTIMIZING BUS ROUTE USING GEOINFORMATION ENVIRONMENT". Bulletin of the Angarsk State Technical University 1, n. 15 (12 gennaio 2022): 139–44. http://dx.doi.org/10.36629/2686-777x-2021-1-15-139-144.
Abstract (sommario):
The public transport system is characterized by a complex transport network, intersecting routes and fragmented stopping points. In this regard, the functioning of the transport system to ensure optimal planning of bus transportation is an urgent task. A solution to this problem can be a multi-level model that allows you to represent network objects at several spatial levels, calculate the exact time delay, and meet the needs of planning bus trips with various optimization criteria
43
Novikov, Aleksandr, Sergey Eremin e Andrei Kulev. "Methodology of passenger public transport organization within the context of long-term territorial development of a city". MATEC Web of Conferences 341 (2021): 00064. http://dx.doi.org/10.1051/matecconf/202134100064.
Abstract (sommario):
The article presents selected scientific approaches based on multi-criteria optimization which can be applied for the organization of passenger public transport within the context of long-term territorial development of the city. The transport network of the city of Krasnoyarsk was chosen as an example for the presentation of practical application of these approaches.
44
Boissière, J., F. Martin, N. Teypaz, G. Mauris e V.-D. Cung. "USING CHOQUET-INTEGRAL FOR GUIDING TABU SEARCH IN MULTI-CRITERIA PUBLIC TRANSPORT NETWORK DESIGN". IFAC Proceedings Volumes 40, n. 18 (settembre 2007): 617–22. http://dx.doi.org/10.3182/20070927-4-ro-3905.00102.
45
Liu, Zhizhen, Hong Chen, Enze Liu e Qi Zhang. "Evaluating the dynamic resilience of the multi-mode public transit network for sustainable transport". Journal of Cleaner Production 348 (maggio 2022): 131350. http://dx.doi.org/10.1016/j.jclepro.2022.131350.
46
Rokem, Jonathan, e Laura Vaughan. "Segregation, mobility and encounters in Jerusalem: The role of public transport infrastructure in connecting the ‘divided city’". Urban Studies 55, n. 15 (1 febbraio 2017): 3454–73. http://dx.doi.org/10.1177/0042098017691465.
Abstract (sommario):
This paper assesses ways in which urban segregation is shaped and transformed by Jerusalem’s public transport network, enhancing mobility and potential group encounters. We suggest that segregation should be understood as an issue of mobility and co-presence in public space, rather than the static residential-based segregation that continues to be a central focus of debate in urban studies. We explore public transport infrastructures, considering how their implementation reflects the variety of ways that transport can have impact: segmenting populations, linking populations and/or creating spaces for interaction or conflict between the city’s Jewish Israeli and Arab Palestinian populations. Space syntax network analysis suggests that in the case of Jerusalem, access to public transport is multi-dimensional: as well as providing access to resources, it shapes opportunities for spatial mobility that may either overcome or reinforce area-based housing segregation. We discuss these opportunities in the light of Jerusalem’s on-going ethno-national division in an increasingly fractured urban reality.
47
Jiang, Xiaowei, Xiaonian Shan e Muqing Du. "Modeling Network Capacity for Urban Multimodal Transportation Applications". Journal of Advanced Transportation 2022 (6 ottobre 2022): 1–22. http://dx.doi.org/10.1155/2022/6034369.
Abstract (sommario):
Since the diversity of urban transport modes and the growth of public transport demands recently, it is essential to consider the multiple mode options in the network capacity problem. This paper derives a comprehensive network capacity model from a single-mode transportation network with only route choice to a multimodal transportation network with both mode choice and route choice. To avoid biases in the evaluation of the multimodal network capacity, two characteristics of the multimodal transportation system are considered in modeling and formulating the problem: (1) the mode interaction between cars and buses is explicitly reflected when they share the same link; (2) the correlation of travel alternatives (modes or routes) is measured by developing a combined modal split and traffic assignment (CMSTA) problem, in which the nested logit (NL) model is employed to account for mode similarity in mode split, while the path-size logit model (PSL) is employed to account for route overlapping in traffic assignment. Numerical experiments demonstrate the characteristics of the new model. It also shows how planning schemes or management strategies affect the multimodal transportation network capacity via a real network case.
48
Hermes, Georg. "Gewährleistung umweltverträglicher Mobilität für alle". Die Verwaltung 53, n. 3 (1 luglio 2020): 311–46. http://dx.doi.org/10.3790/verw.53.3.311.
Abstract (sommario):
The article deals with state responsibility for the provision of sustainable mobility for people and goods, which is available and affordable for everyone. The legal structure of that responsibility can be shaped based on a general legal theory of network-bound infrastructures that distinguishes between the provision of transport infrastructure network, the regulation of (public and private) transport services, and a general legal framework (technical safety, consumer protection, environmental requirements, etc.). The governmental responsibility for mobility is rooted in the German constitution and governed by constitutional rules aimed at protecting health, environment and climate. By analyzing the ways, the legislator and the executive branch follow their responsibilities, some general principles, means and instruments can be found. Among these the instrumental function and limited range of competition is crucial. “Modal split” and “multimodality” of mobility have to be managed by special means of distribution, transfer policy (shifting transport from the roads to the railways), and (digital) interconnectivity. In the light of this the article focusses on two challenges of Germany’s sustainable transport policy (Verkehrswende)—reorganization of railway transport by introducing a nationwide synchronized timetable, and reorganization of local mobility by new instruments of urban planning and interconnectivity.
49
Šperka, Adrián, Juraj Čamaj, Milan Dedík e Zdenka Bulková. "Evaluation Methodology of the Railway Stations Using the AHP Method in the Transport Hubs from the Freight Transport Point of View". Infrastructures 8, n. 12 (10 dicembre 2023): 177. http://dx.doi.org/10.3390/infrastructures8120177.
Abstract (sommario):
Currently, it is necessary to support not only public passenger transport at the expense of individual car transport but also to ensure the modal split of goods from road transport to railway transport. Moreover, it is important to modernize the railway infrastructure, especially hubs and other important railway stations in important settlements and big cities. Therefore, it is necessary to constantly invest in railway lines as well as railway stations. The contribution deals with the determination of the methodology for the evaluation of railway stations in freight transport based on current scientific publications and the AHP method. Its main goal is to determine the size of the peak on the network-railway station on the infrastructure manager’s railway network. One of the benefits is the subsequent determination of the next procedure from the given peak in terms of operation, considering the economic complexity of the entire procedure. The methodology is preceded by an extensive analysis of input data in Slovakia and abroad. This methodology defines the parameters or factors that influence decisions for a particular railway freight station. Subsequently, based on the proposed methodology, a practical application is also developed, within which four railway stations on the ŽSR network are evaluated. In a broader sense, the contribution also points to improving the quality of railway infrastructure in cities.
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Yatskiv, Irina, Eugene Kopytov, Domenico Casellato, Giuseppe Luppino e Rob McDonald. "Benchmarking and Assessment of Good Practices in Public Transport Information Systems". Transport and Telecommunication Journal 14, n. 4 (1 dicembre 2013): 325–36. http://dx.doi.org/10.2478/ttj-2013-0028.
Abstract (sommario):
Abstract The development of the Public Transport (PT) services in the last decade is characterized by wide implementation of various information systems and technologies, which cover different transport services, such as traffic planning, traffic network monitoring, management of operation of PT fleets, providing information to the passengers, ticketing payment, etc. The article considers the research part of a large EU-funded project POLITE aimed at public transport sector and increasing the awareness of infomobility services and PT attractiveness through the application of identified Good Practices and Best Practices. The objective of this paper is presentation of the methodology of benchmarking and assessment of Good Practices and choice of the best one on the basis of the multi-criteria comparative analysis. For assessment of Good Practices the AHP (Analytic Hierarchy Process) method is applied.