Щоб переглянути інші типи публікацій з цієї теми, перейдіть за посиланням: Mobility of tracked vehicles.
Дисертації з теми "Mobility of tracked vehicles"
Оформте джерело за APA, MLA, Chicago, Harvard та іншими стилями
Ознайомтеся з топ-50 дисертацій для дослідження на тему "Mobility of tracked vehicles".
Біля кожної праці в переліку літератури доступна кнопка «Додати до бібліографії». Скористайтеся нею – і ми автоматично оформимо бібліографічне посилання на обрану працю в потрібному вам стилі цитування: APA, MLA, «Гарвард», «Чикаго», «Ванкувер» тощо.
Також ви можете завантажити повний текст наукової публікації у форматі «.pdf» та прочитати онлайн анотацію до роботи, якщо відповідні параметри наявні в метаданих.
Переглядайте дисертації для різних дисциплін та оформлюйте правильно вашу бібліографію.
1
Bodin, Anders. "Improving the mobility performance of tracked vehicles in deep snow /." Luleå : Luleå tekniska univ, 2002. http://epubl.luth.se/1402-1544/2002/10/index.html.
Повний текст джерела
2
Johnson, Christopher Patrick. "Comparative Analysis of Lightweight Robotic Wheeled and Tracked Vehicle." Thesis, Virginia Tech, 2012. http://hdl.handle.net/10919/76994.
Повний текст джерелаАнотація:
This study focuses on conducting a benchmarking analysis for light wheeled and tracked robotic vehicles. Vehicle mobility has long been a key aspect of research for many organizations. According to the Department of Defense vehicle mobility is defined as, "the overall capacity to move from place to place while retaining its ability to perform its primary mission"[1]. Until recently this definition has been applied exclusively to large scale wheeled and tracked vehicles. With new development lightweight ground vehicles designed for military and space exploration applications, the meaning of vehicle mobility must be revised and the tools at our disposal for evaluating mobility must also be expanded. In this context a significant gap in research is present and the main goal of this thesis is to help fill the void in knowledge regarding small robotic vehicle mobility assessment. Another important aspect of any vehicle is energy efficiency. Thus, another aim of this study is to compare the energy needs for a wheeled versus tracked robot, while performing similar tasks.
The first stage of the research is a comprehensive review of the state-of-the-art in vehicle mobility assessment. From this review, a mobility assessment criterion for light robots will be developed. The second stage will be outfitting a light robotic vehicle with a sensor suite capable of capturing relevant mobility criteria. The third stage of this study will be an experimental investigation of the mobility capability of the vehicle. Finally the fourth stage will include quantitative and qualitative evaluation of the benchmarking study.Master of Science
3
Gothing, Grant Edward. "Development of the "Discretized Dynamic Expanding Zones with Memory" Autonomous Mobility Algorithm for the Nemesis Tracked Vehicle Platform." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/34404.
Повний текст джерелаАнотація:
The Nemesis tracked vehicle platform is a differentially driven Humanitarian Demining tractor developed by Applied Research Associates, Inc. The vehicle is capable of teleoperational control and is outfitted with a sensor suite used for detecting and neutralizing landmines. Because the detection process requires the vehicle to travel at speeds less than 0.5 km/h, teleoperation is a tedious process. The added autonomous capabilities of waypoint navigation and obstacle avoidance could greatly reduce operator fatigue.
ARA chose to leverage Virginia Tech's experience in developing an autonomous mobility capability for the Nemesis platform. The resulting algorithms utilize the waypoint navigation techniques of Virginia Tech's JAUS (Joint Architecture for Unmanned Systems) toolkit, and a modified version of the Dynamic Expanding Zones (DEZ) algorithm developed for the 2005 DARPA Grand Challenge. The modified approach discretizes the perception zones of the DEZ algorithm and provides the added capability of obstacle memory, resulting in the Discretized Dynamic Expanding Zones with Memory (DDEZm) algorithm. These additions are necessary for efficient autonomous control of the differentially driven Nemesis vehicle.
The DDEZm algorithm was coded in LabVIEW and used to autonomously navigate the Nemesis vehicle through a waypoint course while avoiding obstacles. The Joint Architecture for Unmanned Systems (JAUS) was used as the communication standard to facilitate the interoperability between the software developed at Virginia Tech and the existing Nemesis software developed by ARA. In addition to development and deployment, the algorithm has been fully documented for embedded coding by a software engineer. With embedded implementation on the vehicle, this algorithm will help to increase the efficiency of the landmine detection process, ultimately saving lives.
Master of Science
4
Волосніков, Сергій Олександрович. "Моделі та методи підвищення характеристик рухливості гусеничних машин на основі автоматизованого керування криволінійним рухом". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/38362.
Повний текст джерелаАнотація:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.13.03 – системи та процеси керування. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Дисертація присвячена розробці й удосконаленню методів керування криволінійним рухом гусеничних машин для забезпечення підвищення характеристик керованості та рухливості. Проведено аналіз систем автоматизованого керування які застосовуються в системах керування рухом гусеничних машин. Запропоновано спосіб керування гусеничною машиною при здійсненні криволінійного руху на межі наближення до заносу для збільшення середньої швидкості руху. З метою забезпечення стійкості руху гусеничної машини в повороті удосконалено метод, що дозволяє визначати мінімальний радіус повороту, до значення якого, для заданих швидкості руху та дорожньо-ґрунтових умов заносу, під дією відцентрової сили не виникає. Розроблена модель функціонування цифрової автоматизованої системи щодо запобігання заносу для гусеничної платформи, яка обладнана системою автоматизованого керування поворотом та використовує спосіб повороту шляхом включення передачі (n-1) на борту, що відстає. Отримав подальший розвиток метод вирішення задачі математичного моделювання руху центру мас гусеничної платформи за допомогою аналітичного рішення з використанням перетворення Лапласу, який дозволяє проводити параметричний синтез системи управління поворотом гусеничної платформи. Визначено критерії оцінки основних характеристик електродвигунів, а також інших компонентів системи для створення гібридного приводу для гусеничних машин на базі комплектуючих, що виробляються серійно.Dissertation for the degree of candidate of technical Sciences on specialty 05.13.03 – management systems and processes. – National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2018. The thesis is dedicated to the development and improvement of methods for controlling the curvilinear motion of tracked vehicles in order to increase their controllability and mobility. The analysis of automated control systems of tracked vehicles used in motion control systems was conducted. A method for controlling a tracked vehicle during curvilinear motion on the verge of a skid to increase the average driving speed is proposed. In order to ensure the tracked vehicle movement stability at the time of turn, a method has been developed that allows to determine the minimum turning radius at which, for a given speed and road conditions, skidding does not occur under the action of the centrifugal force. A model of the operation of a digital automated skid prevention system for a tracked vehicle has been developed, which is equipped with an automatic steering control system and does the steering by engaging gear (n-1) on the lagging board. A method for solving the problem of mathematical modeling of the movement of the center of mass of a tracked vehicle with the help of an analytical solution using the Laplace transform has been developed, allowing to carry out parametrical studies of the tracked vehicles at curvilinear motion. The criteria for estimating the main characteristics of electric motors as well as other components of the system for creating a hybrid electric drive for tracked vehicles based on serially produced components have been determined.
5
Волосніков, Сергій Олександрович. "Моделі та методи підвищення характеристик рухливості гусеничних машин на основі автоматизованого керування криволінійним рухом". Thesis, НТУ "ХПІ", 2018. http://repository.kpi.kharkov.ua/handle/KhPI-Press/38257.
Повний текст джерелаАнотація:
Дисертація на здобуття наукового ступеня кандидата технічних наук за спеціальністю 05.13.03 – системи та процеси керування. – Національний технічний університет "Харківський політехнічний інститут", Харків, 2018. Дисертація присвячена розробці й удосконаленню методів керування криволінійним рухом гусеничних машин для забезпечення підвищення характеристик керованості та рухливості. Проведено аналіз систем автоматизованого керування які застосовуються в системах керування рухом гусеничних машин. Запропоновано спосіб керування гусеничною машиною при здійсненні криволінійного руху на межі наближення до заносу для збільшення середньої швидкості руху. З метою забезпечення стійкості руху гусеничної машини в повороті удосконалено метод, що дозволяє визначати мінімальний радіус повороту, до значення якого, для заданих швидкості руху та дорожньо-ґрунтових умов заносу, під дією відцентрової сили не виникає. Розроблена модель функціонування цифрової автоматизованої системи щодо запобігання заносу для гусеничної платформи, яка обладнана системою автоматизованого керування поворотом та використовує спосіб повороту шляхом включення передачі (n-1) на борту, що відстає. Отримав подальший розвиток метод вирішення задачі математичного моделювання руху центру мас гусеничної платформи за допомогою аналітичного рішення з використанням перетворення Лапласу, який дозволяє проводити параметричний синтез системи управління поворотом гусеничної платформи. Визначено критерії оцінки основних характеристик електродвигунів, а також інших компонентів системи для створення гібридного приводу для гусеничних машин на базі комплектуючих, що виробляються серійно.Dissertation for the degree of candidate of technical Sciences on specialty 05.13.03 – management systems and processes. – National Technical University "Kharkiv Polytechnic Institute", Kharkiv, 2018. The thesis is dedicated to the development and improvement of methods for controlling the curvilinear motion of tracked vehicles in order to increase their controllability and mobility. The analysis of automated control systems of tracked vehicles used in motion control systems was conducted. A method for controlling a tracked vehicle during curvilinear motion on the verge of a skid to increase the average driving speed is proposed. In order to ensure the tracked vehicle movement stability at the time of turn, a method has been developed that allows to determine the minimum turning radius at which, for a given speed and road conditions, skidding does not occur under the action of the centrifugal force. A model of the operation of a digital automated skid prevention system for a tracked vehicle has been developed, which is equipped with an automatic steering control system and does the steering by engaging gear (n-1) on the lagging board. A method for solving the problem of mathematical modeling of the movement of the center of mass of a tracked vehicle with the help of an analytical solution using the Laplace transform has been developed, allowing to carry out parametrical studies of the tracked vehicles at curvilinear motion. The criteria for estimating the main characteristics of electric motors as well as other components of the system for creating a hybrid electric drive for tracked vehicles based on serially produced components have been determined.
6
Chiang, Chi-Feng. "Handling characteristics of tracked vehicles on non-deformable surfaces." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1999. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape8/PQDD_0018/MQ48517.pdf.
Повний текст джерела
7
Chiang, Chi-Feng Carleton University Dissertation Engineering Mechanical and Aerospace. "Handling characteristics of tracked vehicles on non-deformable surfaces." Ottawa, 1999.
Знайти повний текст джерела
8
Peterson, Jeremy. "Directional control of a tracked machine utilizing a dual-path hydrostatic transmission /." free to MU campus, to others for purchase, 2003. http://wwwlib.umi.com/cr/mo/fullcit?p1418057.
Повний текст джерела
9
Kasim, Salim Y. "Ride Analysis For Suspension System of off-Road Tracked Vehicles." Thesis, Cranfield University, 1991. http://dspace.lib.cranfield.ac.uk/handle/1826/4664.
Повний текст джерелаАнотація:
In this work. an attempt has been made to develop a programming package
for ride analysis of off-road vehicles based upon a finite-element
formulation of vehicle suspension systems. Mathematical modelling of
generalised suspension systems has been carried out with several
non-linear aspects being investigated and implemented in the programming
package. such as large deflection. non-linear characteristics of springs
and dampers. bump stops and wheel separation. Different types of soi 1
have been considered together with an appropriate modelling of vehicle
tracks. Several methods for time integration of dynamic equations have
been investigated so as to deal wi th numerical instabi 1 i ty problems
expected for off-road suspension systems which often have "stiff"
differential equations of motion. Three ride analysis criteria have also
been considered in the programming package. Several case studies have been analysed using the developed programming
package. They consist of two simple case studies with known analytical
solutions. an existing wheeled off-road vehicle with published analog
computer resul t s , and an off-road tracked vehicle wi th known
experimental results. The package has been validated and proved to be an
acceptable tool for the ride analysis of off-road vehicles. within the
approximating assumptions considered. Several measures for future
development have also been suggested.
10
Lee, Sang Uk S. M. Massachusetts Institute of Technology. "Robust motion planning for autonomous tracked vehicles in deformable terrain." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106779.
Повний текст джерелаАнотація:
Thesis: S.M., Massachusetts Institute of Technology, Department of Mechanical Engineering, 2016.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 90-95).
Ensuring the safety of autonomous vehicles during operation is a challenging task. Numerous factors such as process noise, sensor noise, incorrect model etc. can yield uncertainty in robot's state. Especially for tracked vehicles operating on rough terrain, vehicle slip due to vehicle terrain interaction affects the vehicle system significantly. In such cases, the motion planning of the autonomous vehicle must be performed robustly, considering the uncertain factors in advance of the real-time navigation. The primary contribution of this thesis is to present a robust optimal global planner for autonomous tracked vehicles operating in off-road terrain with uncertain slip. In order to achieve this goal, three tasks must be completed. First, the motion planner must be able to work efficiently under the non-holonomic vehicle system model. An approximate method is applied to the tracked vehicle system ensuring both optimality and efficiency. Second, the motion planner should ensure robustness. For this, a robust incremental sampling based motion planning algorithm (CC-RRT*) is combined with the LQG-MP algorithm. CC-RRT* yields the optimal and probabilistically feasible trajectory by using a chance constrained approach under the RRT* framework. LQG-MP provides the capability of considering the role of compensator in the motion planning phase and bounds the degree of uncertainty to appropriate size. Third, the effect of slip on the vehicle system must be modeled properly. This can be done in advance of operation if we have experimental data and full information about the environment. However, in case where such knowledge is not available, the online slip estimation can be performed using system identification method such as the IPEM algorithm. Simulation results shows that the resulting algorithms are efficient, optimal, and robust. The simulation was performed on a realistic scenario with several important factors that can increase the uncertainty of the vehicle. Experimental results are also provided to support the validity of the proposed algorithm. The proposed framework can be applied to other robotic systems where robustness is an important issue.
by Sang Uk Lee.
S.M.
11
Carreira, Diogo Emanuel Silva Jordão. "Mobility of communications between vehicles and infrastructure." Master's thesis, Universidade de Aveiro, 2013. http://hdl.handle.net/10773/12493.
Повний текст джерелаАнотація:
Mestrado em Engenharia Electrónica e TelecomunicaçõesThe unique characteristics of VANETs, such as high mobility, dynamic topology and frequent loss of connectivity, turn the network selection scheme into a complex problem. In a crowded wireless environment that surrounds us, mainly in urban areas, there is a proliferation and superposition of multiple networks and technologies. Therefore, in order to guarantee connectivity in a transparent way for users, the presence of a connection manager capable of taking informed decisions is crutial. With the increase of mobile traffic, several initiatives have been performed for deploying free/low-cost Wi-Fi hotspots across the cities, in order to offload traffic from the cellular networks into more cost-effective networks. On the one hand, clients benefit from lower data prices, and on the other hand, operators may reduce the amount of cellular infrastructure deployed. Furthermore, users will certainly prefer to connect to a free source of Internet whenever it is available instead of paying for it. Since nodes in VANETs are vehicles, the perception of the surrounding networks is constantly changing, becoming unstable with speed. Therefore, the high mobility of nodes in VANETs jeopardizes the existing network selection mechanisms, which for the network election, are based on Received Signal Strength (RSS) to choose where to connect. Moreover, in a VANET environment, there are no mechanisms capable of taking into account V2V communication according to the WAVE/DSRC technology. Thereby, we propose a connection manager which considers the Wi-Fi networks, cellular networks and the WAVE/DSRC technology to provide connectivity to vehicles. This connection manager is capable of looking into relevant data that is available in VANET-equipped vehicles, increasing the dynamic of the decision process. VCM is a connection manager optimized to operate in VANET scenarios, which takes into account the vehicle speed and heading, the infrastructure position along with their availability and also the number of hops to reach the service provider, besides the link quality. The proposed connection manager is based on an Analytical Hierarchic Process (AHP) that combines several candidate networks, geographic inputs and physical factors to determine the best connection at all times, including the technology and the best network, for each user. To determine the priority of each parameter, we proposed the combination of pairwise comparisons between the criteria involved, according to Saaty's pairwise comparison scale, enhancing the process through simulation and using a Genetic Algorithm (GA). To observe the enhancements provided by VCM, two typical connection managers were implemented: BCM which only looks to the signal quality to choose where to connect, and PCM which takes into account users preference besides the RSS. The evaluation was performed in a Manhattan grid, composed by several vehicles using SUMO's car-following model and with equal turn probabilities, and infrastructure randomly spread across the scenario. The results show that VCM outperforms the other two connection managers, proving that it is capable of operating in general scenarios minimizing the packet loss and with a reduced number of performed handovers.
As características únicas das redes veiculares, como a elevada mobilidade, a topologia dinâmica e a frequente perda de conectividade, tornam o esquema da escolha de rede num problema complexo. Num ambiente replecto de redes sem fios, principalmente nas áreas urbanas, existe um aglomerado e sobreposição de varias redes e tecnologias. Assim, para garantir ao utilizador a conectividade de forma transparente, é necessário a presença de um mecanismo capaz de tomar decisões informadas. Com o aumento do trafego móvel, varias iniciativas estão a ser realizadas, disponibilizando hotspots IEEE 802.11 a/g/n (Wi-Fi) pelas cidades, de forma a retirar trafego das redes celulares. Por um lado, os clientes podem usufruir de preços mais baixos e por outro lado, os operadores conseguem reduzir a quantidade de trafego móvel. Alem disso, os utilizadores irão preferir ligar-se a uma rede mais barata/grátis sempre que estiver disponível, desde que tenha boa qualidade. Uma vez que nas redes veiculares os nos são veículos, as redes disponíveis estão sempre a mudar, tornando-se cada vez mais instáveis com o aumento da velocidade. Assim, a mobilidade dos nos põe em causa as soluções existentes para mecanismos de selecção de redes, que maioritariamente para elegerem a melhor rede se baseiam apenas na qualidade do sinal. Alem disso, para um ambiente de redes veiculares, não existem mecanismos de selecção capazes de ter em conta comunicação Vehicle-to-Vehicle (V2V) de acordo com a tecnologia Wireless Access in Vehicular Environments (WAVE) / (Dedicated Short-Range Communications (DSRC). Assim, é proposta a criação de um gestor de conectividade capaz de ter em conta determinados factores que se encontram disponíveis nos veículos Vehicular Ad-hoc NETwork (VANET)-equipados para aumentar a dinâmica do processo de seleccao. O Vanet Connection Manager (VCM) é um gestor de conectividade optimizado para ambientes veiculares, que considera a disponibilidade de redes Wi-Fi, redes celulares e a tecnologia WAVE / DSRC para veículos. Este gestor tem em conta a velocidade e direcção do veículo, a posição das infraestructuras bem como a sua disponibilidade, o numero de saltos ate ao destino, alem da qualidade do sinal. O mecanismo proposto e baseado num Processo Analítico Hierárquico que combina varias redes candidatas, parâmetros geográficos e factores físicos para determinar a melhor ligação possível, incluindo a tecnologia e a melhor rede, para cada utilizador. Para o calculo das prioridades de cada parâmetro, foi proposto o método das combinações emparelhadas desenvolvido por Saaty, optimizando o processo através de simulação e recorrendo a um Algoritmo Genético. Para observar o desempenho do gestor de conectividade, implementaram-se dois gestores típicos de conectividade: Basic Connection Manager (BCM) que apenas tem em conta a força de sinal para escolher o melhor candidato, e o Preference-based Connection Manager (PCM) que tem em conta as preferências dos utilizadores para além da força de sinal. A avaliação foi realizada num cenário Manhattan, composto por vários veículos com modelos de simulação importados do SUMO e infraestrutura aleatoriamente colocada ao longo do cenário. Os resultados mostram que o VCM apresenta melhores resultados que os outros dois gestores de rede, provando que e capaz de operar em qualquer cenário, minimizando as perdas de dados e com um reduzido numero de mudanças de rede.
12
Azmat, Muhammad. "Impact of autonomous vehicles on urban mobility." Institut für Transportwirtschaft und Logistik, WU Wien, 2015. http://epub.wu.ac.at/4633/1/WU_MSc_SCM_Master_Thesis.pdf.
Повний текст джерелаАнотація:
The urban population is growing at an exponential rate throughout the world leading to the problems related to swift and speedy mobility or issues caused by convectional mobility options. This study illustrates and explores the new ways to transport people specially taking into account the self-driving cars concept and discusses the concept of mobility 4.0 (smart / intelligent mobility) and briefly highlights the technological aspects of autonomous vehicles, adaptation advantages and progress in laws and legislations of autonomous vehicle. The study is primarily qualitative and relies on the work of previous researcher, technical reports and blogs but the part of this study is quantitative where empirical data was collected from the experts in a conference held by BBG Austria. The result of the studies shows adaptation readiness of Austrian professional market and business prospects associated with autonomous vehicles Moreover, different business models are suggested, which could be adopted to incorporate the driverless vehicles in day-to-day life of an individual living in urban environment. The models basically suggest that the adaptation of the technology would help curbing transport externalities especially external cost associated to transportation of each individual; which includes congestion, accident, infrastructure costs and environmental costs which are incurred by least efficient conventional cars and would also help shrinking the diseases like premature mortality, aggravation of respiratory as well as cardiovascular disease and sleep disturbance which are the result of city level congestion and pollution. (author's abstract)Series: Schriftenreihe des Instituts für Transportwirtschaft und Logistik - Verkehr
13
Hetherington, John G. "The protection and mobility of armoured fighting vehicles." Thesis, Cranfield University, 1994. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.359509.
Повний текст джерела
14
Gower, Daniel W. Jr. "Speech intelligibility in tracked vehicles and pink noise under active noise reduction and passive attenuation communications headsets." Diss., Virginia Tech, 1992. http://hdl.handle.net/10919/38410.
Повний текст джерелаАнотація:
Speech intelligibility tests using three headset systems, two passive and one with active noise reduction technology, were conducted. Nine listeners, six males and three females, responded to 180 50-word Modified Rhyme Word Lists presented under two noise conditions, two conditions of bilateral phase reversal of the speech signal, and the three headset systems. These three independent variables were studied in a full factorial within-subjects design.
The noise conditions were pink noise and recordings from the troop carrying compartment of a u.S. Army M-2 Bradley Fighting Vehicle (tank noise having substantial low frequency energy). Phase reversal of the speech signal was also tested for its effect on speech intelligibility. The three headset systems were the David Clark Noise Attenuating Aviation Headset, and the Bose Aviation Headset used in both its passive and active mode. Active noise reduction technology employs the physical principle of constructive and destructive interference by creating signals which are identical to the noise under the earmuff but out of phase by 180 degrees. This technology is most effective at frequencies below 1000 Hz. Results showed that the Bose headset in its active mode required a significantly higher speech-to-noise ratio in both noise environments than the two passive headset systems to achieve the 70% level of speech intelligibility, the dependent variable in this study. The mean speech level under the Bose headset in its active mode was 2.8 dB higher in tank noise and 3.5 dB higher in pink noise than under the David Clark headset. The Bose headset in the active mode, however, provided a greater degree of broadband attenuation especially in the lower frequency range, e.g. < 630 Hz.
Phase reversal proved to be of no benefit to performance in either noise environment. The pink noise proved to be the harsher environment for speech intelligibility than did the tank noise, primarily due to the increased levels in the speech bandwidth. Articulation Index scores for the three headset systems evidenced that the differences in performance among the three headset systems were in part the result of better earphone response characteristics in the principal speech bandwidth (600 - 4000 Hz) in conjunction with the strong attenuation performance of the David Clark headset in that same range. It is suggested that, in the absence of better earphone response characteristics and a broader bandwidth of active noise reduction performance, speech intelligibility is no better under active noise reduction headsets than under quality passive headsets. Further, the levels of speech intelligibility attained by active noise reduction headsets are at a cost of increased signal strength and higher purchase price.Ph. D.
15
Worley, Marilyn Elizabeth. "Experimental Study on the Mobility of Lightweight Vehicles on Sand." Thesis, Virginia Tech, 2007. http://hdl.handle.net/10919/34005.
Повний текст джерелаАнотація:
This study focuses on developing a better comprehension of the mobility of lightweight autonomous vehicles with varying locomotion platforms on sand. This research involves four segments.The first segment is a review of military criteria for the development of lightweight unmanned ground vehicles, followed by a review a review of current methodologies for evaluating the terramechanic (vehicle-ground interaction) mobility measures of heavyweight wheeled and tracked vehicles, and ending with a review of the defining properties of deformable terrain with specific emphasis on sand. These present a basis for understanding what currently defines mobility and how mobility is quantified for traditional heavyweight wheeled and tracked vehicles, as well as an understanding of the environment of operation (sandy terrain) for the lightweight vehicles in this study.
The second segment involves the identification of key properties associated with the mobility and operation of lightweight vehicles on sand as related to given mission criteria, so as to form a quantitative assessment system to compare lightweight vehicles of varying locomotion platforms. A table based on the House of Quality shows the relationships—high, low, or adverse—between mission profile requirements and general performance measures and geometries of vehicles under consideration for use. This table, when combined with known values for vehicle metrics, provides information for an index formula used to quantitatively compare the mobility of a user-chosen set of vehicles, regardless of their methods of locomotion. This table identifies several important or fundamental terramechanics properties that necessitate model development for robots with novel locomotion platforms and testing for lightweight wheeled and tracked vehicles so as to consider the adaptation of counterpart heavyweight terramechanics models for use.
The third segment is a study of robots utilizing novel forms of locomotion, emphasizing the kinematics of locomotion (gait and foot placement) and proposed starting points for the development of terramechanics models so as to compare their mobility and performance with more traditional wheeled and tracked vehicles. In this study several new autonomous vehicles—bipedal, self-excited dynamic tripedal, active spoke-wheel—that are currently under development are explored.
The final segment involves experimentation of several lightweight vehicles and robots on sand. A preliminary experimentation was performed evaluating a lightweight autonomous tracked vehicle for its performance and operation on sand. A bipedal robot was then tested to study the foot-ground interaction with and sinkage into a medium-grade sand, utilizing a one of the first-developed walking gaits. Finally, a comprehensive set of experiments was performed on a lightweight wheeled vehicle. While the terramechanics properties of wheeled and tracked vehicles, such as the contact patch pressure distribution, have been understood and models have been developed for heavy vehicles, the feasibility of extrapolating them to the analysis of light vehicles is still under analysis. A wheeled all-terrain vehicle was tested for effects of sand gradation, vehicle speed, and vehicle payload on measures of pressure and sinkage in the contact patch, and preliminary analysis is presented on the sinkage of the wheeled all-terrain vehicle.
These four segments—review of properties of sandy terrain and measures of and criteria for the mobility of lightweight vehicles operating on sandy terrain, the development of the comparison matrix and indexing function, modeling and development of novel forms of locomotion, and physical experimentation of lightweight tracked and wheeled vehicles as well as a bipedal robot—combine to give an overall picture of mobility that spans across different forms of locomotion.
Master of Science
16
Momtazpour, Marjan. "Knowledge Discovery for Sustainable Urban Mobility." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/65157.
Повний текст джерелаАнотація:
Due to the rapid growth of urban areas, sustainable urbanization is an inevitable task for city planners to address major challenges in resource management across different sectors. Sustainable approaches of energy production, distribution, and consumption must take the place of traditional methods to reduce the negative impacts of urbanization such as global warming and fast consumption of fossil fuels. In order to enable the transition of cities to sustainable ones, we need to have a precise understanding of the city dynamics. The prevalence of big data has highlighted the importance of data-driven analysis on different parts of the city including human movement, physical infrastructure, and economic activities.
Sustainable urban mobility (SUM) is the problem domain that addresses the sustainability issues in urban areas with respect to city dynamics and people movements in the city. Hence, to realize an integrated solution for SUM, we need to study the problems that lie at the intersection of energy systems and mobility. For instance, electric vehicle invention is a promising shift toward smart cities, however, the impact of high adoption of electric vehicles on different units such as electricity grid should be precisely addressed.
In this dissertation, we use data analytics methods in order to tackle major issues in SUM. We focus on mobility and energy issues of SUM by characterizing transportation networks and energy networks. Data-driven methods are proposed to characterize the energy systems as well as the city dynamics. Moreover, we propose anomaly detection algorithms for control and management purposes in smart grids and in cities. In terms of applications, we specifically investigate the use of electrical vehicles for personal use and also for public transportation (i.e. electric taxis). We provide a data-driven framework to propose optimal locations for charging and storage installation for electric vehicles. Furthermore, adoption of electric taxi fleet in dense urban areas is investigated using multiple data sources.Ph. D.
17
Chuang, Chih-Chao. "Green mobility Taipei City : with the arrival of mobility-on-demand system with ultra small electric vehicles." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/67763.
Повний текст джерелаАнотація:
Thesis (S.M.)--Massachusetts Institute of Technology, School of Architecture and Planning, Program in Media Arts and Sciences, 2011.Cataloged from PDF version of thesis. Page 250 blank.
Includes bibliographical references (p. 246-249).
Urban form always transforms when new transportation technology is deployed. Urban form and transportation technologies always coevolve. Many new technologies have been developed to solve the problems of greenhouse gas emission, air pollution, energy efficiency, high gas prices, traffic congestion, etc. Electric vehicles (EVs) and Mobility-on-Demand systems are two of these technologies. With the advancement of battery technologies, EVs are become the next mainstream product for Automobile industry. Meanwhile, there are many new concepts about various alternative types of car ownership, such as Mobility-on-Demand (MoD) systems, a one-way rental car sharing systems, for which the Smart Cities group of MIT Media Lab is doing research. The regulation and infrastructure of current cities are mainly designed to accommodate gasoline-powered and private owned vehicles. This thesis addresses how will urban fabric and space transform with the arrivals of EVs and MoD systems and what kind of service and urban infrastructure can be integrated when individual vehicles become a node of mobility network. The thesis focuses on Taipei City as a case study city and develops varies scale design strategies, ranging from charging infrastructure, street, sidewalk, curb, parking infrastructure, to building type. The thesis also discusses the benefit of EVs and MoD system may bring to a city.
by Chih-Chao Chuang.
S.M.
18
Rigole, Pierre-Jean. "Study of a Shared Autonomous Vehicles Based Mobility Solution in Stockholm." Thesis, KTH, Industriell ekologi, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-151126.
Повний текст джерелаАнотація:
The aim of this report is to provide an analysis of potential benefits of a fleet of Shared Autonomous Vehicles (SAV) providing a taxi service to replace private car commuter trips in a metropolitan area. We develop a framework for dynamic allocation of SAVs to passenger trips, empty-vehicle routing and multi-criteria evaluation with regard to passenger waiting time, trip time and fleet size. Using a representation of current private trip demand for the Stockholm metropolitan area and a detailed road network representation, different scenarios (varying levels of accepted passenger waiting time at origin and accepted increase in travel time) are compared with respect to passenger travel time, number of vehicles needed and vehicle mileage. In a second step the environmental impacts of the different scenarios are assessed and compared using a life cycle approach. The assessment includes both a fleet consisting of currently in use gasoline and diesel cars as well as electrical cars. The results show that an SAV-based personal transport system has the potential to provide an on-demand door-to-door transport with a high level of service, using less than 10 % of today's private cars and parking places. In order to provide an environmental benefit and lower congestion an SAV-based personal transport system requires users to accept ride-sharing, allowing a maximum 30% increase of their travel time (15% on average) and a start time window of 10 minutes. In a scenario where users are not inclined to accept any reduced level of service, i.e. no ride-sharing and no delay, empty vehicle drive of an SAV-based personal transport system will lead to increased road traffic increasing environmental impacts and congestion. Envisioning a future using electrical cars a SAV-based system and electrical vehicle technology seems to be a “perfect” match that could definitely contribute to a sustainable transport system in Stockholm.
19
Ksouri, Chahrazed. "Smart Mobility and Routing in Intermittent Infrastructure-based Internet of Vehicles." Thesis, Bordeaux, 2020. http://www.theses.fr/2020BORD0286.
Повний текст джерелаАнотація:
De grands progrès ont été réalisés dans le domaine des transports, ce qui a conduit à l'émergence du concept de la Smart Mobility. Dans cette thèse, nous nous intéressons à l'aspect technologique du concept. Nous proposons une vision plus large de la Smart Mobility, tout en spécifiant trois domaines de mobilité; à savoir terrestre, aérien et marin. Nous nous concentrons ensuite sur le domaine terrestre, plus précisément, les protocoles de routage dans l'Internet des véhicules (IoV). Dans l'environnement véhiculaire, trois catégories de scénario de réseau doivent être distinguées: infrastructure basée, sans infrastructure et infrastructure intermittente. Dans ce travail, nous souhaitons permettre aux véhicules d'atteindre l'infrastructure en temps opportun dans le troisième scénario. À cette fin, nous proposons ILTS (Infrastructure Localization Service and Tracking Scheme) qui extrait des informations précieuses de l'échange de messages périodiques afin de localiser l'infrastructure et de suivre les chemins disponibles vers elle. Ensuite, nous proposons un protocole de routage basé sur un mécanisme de prise de décision, HyRSIC (Hybrid Routing for Safety data with Intermittent V2I Connectivity), qui permet aux véhicules de faire le choix optimal lors de la transmission des donnéesGreat progress has been made in the transportation field, which has led to the emergence of the Smart Mobility concept. In this thesis, we are interested in the technological aspect of the concept. We propose a broader vision of Smart Mobility, while specifying three mobility domains; namely terrestrial, aerial and marine. We then, focus on the terrestrial domain, more precisely, routing protocols in Internet of Vehicles (IoV). In the vehicular environment, three categories of network scenario are to be distinguished: infrastructure-based, infrastructure-less and intermittent infrastructure. In this work, we are interested in enabling vehicles to reach the infrastructure in a timely manner in the third scenario. To this end, we propose ILTS (Infrastructure Localization service and Tracking Scheme) that extracts valuable information from periodic message exchange in order to localize infrastructure and track available paths towards it. Then, we propose a routing protocol based on a decision making mechanism, HyRSIC (Hybrid Routing for Safety data with Intermittent V2I Connectivity), that enables vehicles to make the optimal choice when transmitting data
20
Lackey, Nathan. "Simulating Autonomous Vehicles in a Microscopic Traffic Simulator to Investigate the Effects of Autonomous Vehicles on Roadway Mobility." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1555072367385629.
Повний текст джерела
21
Kuiper, Erik. "Mobility and Routing in a Delay-tolerant Network of Unmanned Aerial Vehicles." Licentiate thesis, Linköping University, Linköping University, RTSLAB - Real-Time Systems Laboratory, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-11430.
Повний текст джерелаАнотація:
Technology has reached a point where it has become feasible to develop unmanned aerial vehicles (UAVs), that is aircraft without a human pilot on board. Given that future UAVs can be autonomous and cheap, applications of swarming UAVs are possible. In this thesis we have studied a reconnaissance application using swarming UAVs and how these UAVs can communicate the reconnaissance data. To guide the UAVs in their reconnaissance mission we have proposed a pheromone based mobility model that in a distributed manner guides the UAVs to areas not recently visited. Each UAV has a local pheromone map that it updates based on its reconnaissance scans. The information in the local map is regularly shared with a UAV’s neighbors. Evaluations have shown that the pheromone logic is very good at guiding the UAVs in their cooperative reconnaissance mission in a distributed manner.
Analyzing the connectivity of the UAVs we found that they were heavily partitioned which meant that contemporaneous communication paths generally were not possible to establish. This means that traditional mobile ad hoc network (MANET) routing protocols like AODV, DSR and GPSR will generally fail. By using node mobility and the store-carry-forward principle of delay-tolerant routing the transfer of messages between nodes is still possible. In this thesis we propose location aware routing for delay-tolerant networks (LAROD). LAROD is a beacon-less geographical routing protocol for intermittently connected mobile ad hoc networks. Using static destinations we have shown by a comparative study that LAROD has almost as good delivery rate as an epidemic routing scheme, but at a substantially lower overhead.
Report code: LiU-Tek-Lic-2008:14
22
Senatore, Carmine. "Prediction of mobility, handling, and tractive efficiency of wheeled off-road vehicles." Diss., Virginia Tech, 2010. http://hdl.handle.net/10919/37781.
Повний текст джерелаАнотація:
Our society is heavily and intrinsically dependent on energy transformation and usage.
In a world scenario where resources are being depleted while their demand is increasing, it
is crucial to optimize every process. During the last decade the concept of energy efficiency
has become a leitmotif in several fields and has directly influenced our everyday life: from
light bulbs to airplane turbines, there has been a general shift from pure performance to
better efficiency.
In this vein, we focus on the mobility and tractive efficiency of off-road vehicles. These
vehicles are adopted in military, agriculture, construction, exploration, recreation, and mining
applications and are intended to operate on soft, deformable terrain.
The performance of off-road vehicles is deeply influenced by the tire-soil interaction
mechanism. Soft soil can drastically reduce the traction performance of tires up to the
point of making motion impossible. In this study, a tire model able to predict the performance
of rigid wheels and flexible tires is developed. The model follows a semi-empirical
approach for steady-state conditions and predicts basic features, such as the drawbar pull,
the driving torque and the lateral force, as well as complex behaviors, such as the slip-sinkage
phenomenon and the multi-pass effect. The tractive efficiency of different tire-soil configurations is simulated and discussed. To investigate the handling and the traction efficiency,
the tire model is implemented into a four-wheel vehicle model. Several tire geometries, vehicle
configurations (FWD, RWD, AWD), soil types, and terrain profiles are considered to
evaluate the performance under different simulation scenarios. The simulation environment
represents an effective tool to realistically analyze the impact of tire parameters (size, inflation
pressure) and torque distribution on the energy efficiency. It is verified that larger
tires and decreased inflation pressure generally provide better traction and energy efficiency
(under steady-state working conditions). The torque distribution strategy between the axles
deeply affects the traction and the efficiency: the two variables canâ t clearly be maximized
at the same time and a trade-off has to be found.Ph. D.
23
Revathi, Palaniappan Natchammai. "Forest Machine Track-Soil Interaction." Thesis, KTH, Maskinkonstruktion (Inst.), 2013. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-142428.
Повний текст джерелаАнотація:
I många västeuropeiska länder har metoden för skogsavverkning ändrats från användning av motorsåg till ett mekaniserat skogsavverkningssystem känt som kortvirkesmetoden. Denna metod är baserad på en tvåmaskinslösning – en skördare som fäller, grenar och sågar träden enlig fördefinierade längder, och en skotare som transporterar stockarna till en lastplats för vidare transport till en bearbetningsanläggning. För att utveckla skogsmaskiner som är skonsammare för marken behövs en djupare förståelse av interaktionen mellan terrängen och dragfordonet. Huvudfokus i detta projekt ligger på bandgående skotare.Inom detta projekt, innefattar interaktionen mellan bandet och marken spårbildning, sammanpressning, marktryck, skjuvning, grepp och dragkraft. Spårdjupet är en av de viktiga faktorerna för att bestämma fordonets prestanda och skadeåverkan på mark och vegetation. Mätning och karakterisering av de mekaniska egenskaperna för flersiktade jordlager är en komplex uppgift. De två oftast använda metoderna för att mäta jordens mekaniska egenskaper är Bevametertekniken och Konpenetrometertekniken, där Bevametertekniken är jämförelsevis mindre effektiv för att karakterisera den nordiska skogsträngen eftersom skogsjorden inte är homogen.Olika semiempiriska WES-modeller och parametriska modeller används för bestämmandet av marktryck, spårdjup, dragkraft, rörelsemotstånd och kraften i dragkroken för hjul- och bandfordonen. Beräkningarna utfördes för en skotare av mediumstorlek utrustad med tre olika typer av band monterade på boggihjulen. Detta gjordes för tre olika typer av terrängförhållanden och både med och utan last. Även en jämförelse mellan hjul- och bandfordon gjordes. Resultatet från de teoretiska beräkningarna jämfördes med testdata från ett fullskaligt fältprov. Fältprovet inkluderade data för marktryck, nerträngning i jorden och spårdjup mätt på en skotare, både med och utan last.Adams for Tracked Vehicles (ATV) plugin är ett verktyg primärt utvecklat för dynamiska simuleringar av bandfordon. Fördelar och nackdelar med mjukvaran och dess lämplighet för användning för modellering av interaktionen mellan band och jord for skogsmaskiner diskuteras i denna rapport.In many Western European countries, the method of timber harvesting has changed from the use of chain saws to a mechanized harvesting system known as Cut-To-Length method. This cut to length method is based on a two-machine solution – a harvester that folds, branches and cuts trees according to pre-defined lengths, and a forwarder that transports logs to a loading area from where it is further transported to a processing facility. In order to develop forest machines that is gentler to the ground, a thorough understanding of the terrain and the vehicle’s traction unit is required. The main focus of this project is on the tracked forest forwarders.In this project, the track soil interaction covers issues like rutting, compaction, ground pressure, shearing, traction and drawbar pull. The rut depth is one of the important factors to determine the vehicle performance and damages caused to the ground and vegetation. Measurement and characterization of the mechanical properties of a multilayer soil is quite a complex task. The two most commonly used methods to measure the soil mechanical properties are the Bevameter technique and the Cone penetrometer technique, of which the Bevameter technique is comparatively less efficient for characterizing the Nordic forest terrain as the forest soil is not homogenous.Different semi-empirical WES models and parametric models are used for the determining the ground pressure, rut depth, tractive force, motion resistance and drawbar pull for the wheeled and tracked vehicles. The calculations were performed for a medium sized forwarder equipped with three different types of tracks mounted on bogie wheels on three types of terrain conditions under loaded and unloaded conditions. A comparison of the wheeled and tracked vehicle performance is also made. The results obtained from the theoretical calculations are compared with the test data from a full scale field test. The field test data include ground pressure, soil penetration and rut depth data measured on the forwarder with and without load.Adams for Tracked vehicles (ATV) plugin is a tool primarily developed for performing dynamic simulations of tracked equipment. The pros and cons of the software and it’s suitability to be used for the track soil interaction modeling of forestry machines is discussed in this report.
24
Park, Si-Won. "Analysis of interactions of logistics elements of K-1 tracked vehicles in the Republic of Korea Army by using simulation model." Thesis, Monterey, Calif. : Naval Postgraduate School, 2007. http://bosun.nps.edu/uhtbin/hyperion-image.exe/07Jun%5FPark.pdf.
Повний текст джерелаАнотація:
Thesis (M.S. in Operations Research)--Naval Postgraduate School, June 2007.Thesis Advisor(s): Susan M. Sanchez, Keebom Kang. "June 2007." Includes bibliographical references (p. 103-104). Also available in print.
25
Hu, Jiajie. "DEEP LEARNING BASED ON CONNECTED VEHICLES FOR TRAFFIC SAFETY, MOBILITY AND ENERGY EFFICIENCY." Case Western Reserve University School of Graduate Studies / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=case1599751691455352.
Повний текст джерела
26
Sovacool, Benjamin K., and Jonn Axsen. "Functional, symbolic and societal frames for automobility: Implications for sustainability transitions." Elsevier, 2018. https://publish.fid-move.qucosa.de/id/qucosa%3A72765.
Повний текст джерелаАнотація:
Automobility refers to the continued, self-perpetuating dominance of privately-owned, gasoline-powered vehicles used primarily by single occupants—a system which clearly has broad environmental and societal impacts. Despite increasing societal interest in transitions to more sustainable transportation technologies, there has been little consideration of how such innovations might challenge, maintain or support different aspects of automobility, and what that means for technology deployment, transport policy, and user practices. To bring attention to the complexity and apparent durability of the automobility system, in this paper we develop a conceptual framework that explores automobility through a categorization of frames, or shared cultural meanings. This framework moves beyond the typical focus on private, functional considerations of user choice, financial costs and time use to also consider symbolic and societal frames of automobility that exist among users, non-users, industry, policymakers and other relevant social groups. We illustrate this framework with eight particular frames of automobility that fall into four broad categories: private-functional frames such as (1) cocooning and fortressing and (2) mobile digital offices; private-symbolic frames such as (3) gender identity and (4) social status; societal-functional frames such as (5) environmental stewardship and (6) suburbanization; and societal-symbolic frames such as (7) self-sufficiency and (8) innovativeness. Finally, we start the process of discussing several transportation innovations in light of these automobility frames, namely electrified, autonomous and shared mobility—examining early evidence for which frames would be challenged or supported by such transitions. We believe that appreciation of the complex and varied frames of automobility can enrich discussion of transitions and policy relating to sustainable transportation.
27
Lindén, Thomas, and Toussaint Ishimwe. "Mobility services outside the cities : Development of mobility services in rural areas with self-driving technology." Thesis, Uppsala universitet, Industriell teknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-357360.
Повний текст джерелаАнотація:
This thesis aims to create a first draft of a value-driven business model describing a mobility service for areas outside cities, which uses self-driving vehicles. The methodology used to fulfil the aim is based on service design thinking. User studies are conducted using qualitative interviews to explore the mobility needs and behaviour in rural areas. This is then combined with a morphological analysis, which is used as a structuring method for creating new business model concepts for the mobility service. Finally, stakeholder interviews are conducted in order to revise the developed business model and to find out their opinions about the proposed mobility service. The resulting mobility service is a feeder-service that includes self-driving vehicles, operated by the public transport authority. The study shows that a concept with self-driving vehicles like this would meet the users' mobility needs. Regarding the implementation of the service, stakeholders involved have driving factors that could facilitate the implementation, such as cost savings, increased accessibility, rural development, and environmental aspects. However, some barriers are identified as well, that mainly concerns the sparse structure and long distances in rural areas, the dimension of the vehicle fleet, laws and regulations, but also the psychological barriers such as acceptance of the users to go from using their own car to utilize self-driving vehicles in a mobility service.
28
Johns, Byron Edward. "Design and Control of a New Reconfigurable Robotic Mobility Platform." Thesis, Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/14632.
Повний текст джерелаАнотація:
The development of a new family of robotic vehicles for use in the exploration of Mars and other remote planets is an ongoing process. Current rovers have to traverse rough terrain and be able to withstand various conditions on Mars. The goal of this project is to design a new Mars rover mobility system that performs to optimum capability. This project will involve the design and control of a robot that will use wheels, as well as legs, allowing the robot to reconfigure itself to adapt to its current environment and traverse various terrains. This new reconfigurable hybrid robotic vehicle, Byrobot (named after the student), will have a six-legged mobility design for walking. Each leg will have 3 degrees of freedom, controlled by 3 separate servos, for the movement of the legs. Byrobot will also have 4 wheels each directly attached to the shaft of a DC motor, for four-wheel differential drive. By having these two mobility systems, Byrobot will be able to operate in various environments, by capitalizing on the advantages of both legged and wheeled robots. The CAD designing for this new robot is done on Pro-Engineer, and mechanisms and animations will be run to test movement of parts. The actual robot hardware will then be constructed in the Georgia Tech MRDC machine shop. The control system for the robot will be run by the Eyebot, which uses a 25MHz 32bit Controller (Motorola 68332), as well as the SSC-32 Servo Controller from Lynxmotion. This new robotic mobility platform will facilitate future Mars exploration.
29
Lieven, Theo. "Policy measures to promote electric mobility – A global perspective." Elsevier, 2015. https://publish.fid-move.qucosa.de/id/qucosa%3A72828.
Повний текст джерелаАнотація:
Research that addresses policy measures to increase the adoption of electric vehicles (EVs) has discussed government regulations such as California’s Zero Emission Vehicle (ZEV) or penalties on petroleum-based fuels. Relatively few articles have addressed policy measures designed to increase the adoption of EVs by incentives to influence car buyers’ voluntary behavior. This article examines the effects of such policy measures. Two of these attributes are monetary measures, two others are traffic regulations, and the other three are related to investments in charging infrastructure. Consumer preferences were assessed using a choice-based conjoint analysis on an individual basis by applying the hierarchical Bayes method. In addition, the Kano method was used to elicit consumer satisfaction. This not only enabled the identification of preferences but also why preferences were based on either features that were “must-haves” or on attributes that were not expected but were highly attractive and, thus, led to high satisfaction. The results of surveys conducted in 20 countries in 5 continents showed that the installation of a charging network on freeways is an absolute necessity. This was completely independent from the average mileage driven per day. High cash grants were appreciated as attractive; however, combinations of lower grants with charging facilities resulted in similar preference shares in market simulations for each country. The results may serve as initial guidance for policymakers and practitioners in improving their incentive programs for electric mobility.
30
Kewlani, Gaurav. "Stochastic approaches to mobility prediction, path planning and motion control for ground vehicles in uncertain environments." Thesis, Massachusetts Institute of Technology, 2009. http://hdl.handle.net/1721.1/55270.
Повний текст джерелаАнотація:
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2009.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 107-111).
The ability of autonomous or semi-autonomous unmanned ground vehicles (UGVs) to rapidly and accurately predict terrain negotiability, generate efficient paths online and have effective motion control is a critical requirement for their safety and use in unstructured environments. Most techniques and algorithms for performing these functions, however, assume precise knowledge of vehicle and/or environmental (i.e. terrain) properties. In practical applications, significant uncertainties are associated with the estimation of the vehicle and/or terrain parameters, and these uncertainties must be considered while performing the above tasks. Here, computationally inexpensive methods based on the polynomial chaos approach are studied that consider imprecise knowledge of vehicle and/or terrain parameters while analyzing UGV dynamics and mobility, evaluating safe, traceable paths to be followed and controlling the vehicle motion. Conventional Monte Carlo methods, that are relatively more computationally expensive, are also briefly studied and used as a reference for evaluating the computational efficiency and accuracy of results from the polynomial chaos-based techniques.
by Gaurav Kewlani.
S.M.
31
Gandia, Rodrigo. "Innovation in ecosystem business models : An application to MaaS and Autonomous vehicles in urban mobility system." Thesis, université Paris-Saclay, 2020. http://www.theses.fr/2020UPASC018.
Повний текст джерелаАнотація:
Le concept de mobilité comme service (MaaS) s’est généralisé dans les pays occidentaux et est devenu une option de marché concrète, présentant une offre de système de transport basée non plus sur la propriété mais basée sur l'usage. L’utilisateur est ainsi au centre des questions de mobilité urbaine, de sorte que les consommateurs doivent être ouverts à l'adoption de nouvelles technologies, telles que les véhicules autonomes. Cette thèse vise à analyser le concept de MaaS pour identifier les conditions de sa mise en oeuvre et de sa diffusion dans la mobilité urbaine de demain. Nous avons constaté que pour prendre une place durable dans le système de mobilité urbaine, le MaaS doit être considéré comme un modèle d’affaires modulaire et adaptable, applicable à tous les contextes socio-politiques, réglementaires, environnementaux et économiques. Pour cela, le modèle d’affaires de cet écosystème innovant doit tenir compte de l'acceptation des consommateurs, d’une coordination des multiples acteurs constituant la chaine de valeur au sein d’un MaaS et des systèmes de transport existant avec leur développement d’innovations technologiques (véhicule autonome)The concept of Mobility as a Service (MaaS) has become widespread in Western countries and has become a solid market option, presenting a transport system offer based no longer on ownership but use. This approach places the user at the heart of urban mobility issues, so consumers must be open to adopting new technologies and services, such as autonomous vehicles. Based on our research, this Ph.D. thesis aims to analyze the concept of MaaS in order to identify the conditions for its implementation and diffusion in tomorrow's urban mobility. We found that to take a sustainable place in the urban mobility system, MaaS must be considered as a modular and adaptable business model applicable to all socio-political, regulatory, environmental, and economic contexts. To this end, the business model of this innovative ecosystem must take into account consumer acceptance, coordination of the multiple actors making up the value chain within a MaaS and existing transport systems that are specific with their development of technological
32
Wright, Landon Blaine. "Simulation Framework and Potential Field Relocation for Systems of Shared Autonomous Vehicles." BYU ScholarsArchive, 2019. https://scholarsarchive.byu.edu/etd/8629.
Повний текст джерелаАнотація:
Shared autonomous vehicles present a significant opportunity to change the way that urban mobility is viewed by society. By providing a shared mobility platform at a cost lower than has previously been obtainable there are significant possibilites to enable a new era of mobility for consumers. This opportunity, however, comes with significant risks in the form of emissions and increased road usage. Understanding how the risks and benefits of shared autonomous vehicles can be balanced is crucial to be able to adequately prepare for their introduction. One of the primary ways to understand the interplay between the risks and benefits of autonomous vehicles is through the use of computer simulations. However, typically simulations must be defined for a specific area and provide results that are not applicable to a wide range of areas and situations. This work presents the development of a framework that can be used to simulate SAV behaviour at any given region of interest. This framework automates the process of generating a directed non-planar graph using data gathered from the OpenStreetMap project. It further provides tools to generate activity based trips that are statistically similar in time and density to provided data that reflects the trips in the simulation area. In the absence of this data, this work has identified the 2009 National Household Travel Survey as an acceptable surrogate for data specific to a region. The framework then provides methods by which the trip origins and destinations are mapped into the directed non-planar graph representation of the area of interest. This mapping is performed using real-world data including business locations and census data. Finally the framework is capable of simulating the activity of SAV in response to the defined trips given a variety of starting conditions and relocation strategies. In addition to the simulation framework this work presents a novel relocation strategy for unoccupied SAV based on the potential field methods that have been used in robotic navigation. This method provides a continously differentiable function that describes the unmet demand in the service area for a network of shared autonomous vehicles. The tunable parameters of the method are explored by using a design of experiments, and optimal values reflecting different scenarios are identified.The method is also evaluated in the context of both and over- and under-supply of vehicles for the given demand. As a result this method has been shown to provide substantial reductions in the wait time for a vehicle to service a trip with a minimal increase in the total distance that is traveled by all vehicles in the network.
33
Nilsson, Christina. "Factors involved in the adoption ofsustainable mobility product-service systems : The case of KTH Mobility Pool in Sweden." Thesis, KTH, Maskinkonstruktion (Inst.), 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-232475.
Повний текст джерелаАнотація:
The transport sector is responsible for large amounts of greenhouse gas (GHG) emissions and dueto the continued growth of both passengers and shopping of goods, these emissions are constantlyincreasing. Globally, 50% of the energy within the transport sector is consumed by passenger carsand commercial vans. Hence, sustainability within mobility is of interest and there are severaldifferent ways to address this issue. One possible solution could be car sharing which is a mobilityproduct-service system (PSS) where the private car is replaced by rental cars. However, diffusionof such PSSs is slow, and they are still limited to small niche markets.In this thesis, a dataset from the research project KTH Mobility Pool (KMP) has been analysed.KMP involved a mobility PSS in which electric vehicles (EVs) were integrated with a digitalbooking system, in a shared use system. The users tried out the PSS during a six-months trialperiod. The aim with this thesis was to identify different factors involved in the adoption of newsustainable mobility PSS. During the thesis work additional research questions emerged regardingthe motivation to participate in trials within new sustainable mobility PSS and what impact thetrial had on the users from an environmental perspective. An exploratory and inductive researchapproach was used, with a data analysis influence by grounded theory. Moreover, the thesis workinvolved a mixed method approach since the analysed dataset derived from interviews, surveysand workshops with the KMP users.Through the comparison of the analysed data and existing literature some conclusions could bedrawn. Common motivators for participating in the KMP trial were the opportunity to try out anew technology, saving money and interest in technology, cars and the environment. Five factorsof importance during the trial could be identified: convenience, car ownership, economy,environment, and safety. The impact of the trial on the users was an increased environmentalconsciousness where the users became more aware of their car usage and felt more environmental.Moreover, the trial also gave the users a more positive attitude towards EVs concerning thedevelopment of the EV market, their range and practicality. In conclusion, more research is neededto unfold and establish a complete and holistic view of the adoption of sustainable mobility PSS.However, the findings in this thesis work have answered some of the questions regarding theadoption of sustainable mobility PSS, which can be useful for future trials.Transportsektorn ansvarar för en stor mängd av växthusgasutsläpp och då både antalet passagerareökar och varuhandeln växer, så ökar även utsläppen konstant. Globalt så går 50% av energin inomtransportsektorn till personbilar och kommersiella fordon. Således är hållbarhet inom mänskligtransport viktig och det finns flera sätt att angripa detta dilemma. En möjlig lösning är samåkning,vilket är ett produkt- och tjänstesystem (PSS) där den privata bilen ersätts med en hyrbil. Dock såär spridningen av sådana PSS långsam och de är fortfarande begränsade till små nischmarknader.I detta examensarbete har en datauppsättning från forskningsprojektet KTH Mobility Pool (KMP)analyserats. KMP involverade ett PSS för mänsklig transport, i vilket elbilar var integrerade medett digitalt bokningssystem, i ett gemensamt användningssystem. Detta PSS användes utavanställda på ett tillverkningsföretag till och från jobbet samt under arbetstid, under en sex månaderlång försöksperiod. Målet med examensarbetet var att identifiera de olika faktorer som ärinvolverade i införandet och användandet av nya hållbara PSS för mänsklig transport. Underarbetets gång så dök ytterligare frågeställningar upp angående vad som motiverade användarna atttesta på PSS för mänsklig transport, och hur testprocessen påverkade dem ur miljösynpunkt. Enundersökande och induktiv forskningsmetod användes, med en dataanalys inspirerad av grundadteori. Examensarbetet involverade dessutom en blandning av både kvalitativa och kvantitativametoder eftersom den analyserade datauppsättningen bestod av intervjuer, undersökningar ochworkshops med KMP-användarna.Genom jämförelse av data som analyserats med befintlig litteratur, kunde vissa slutsatser dras.Vanliga motivationsfaktorer för att delta i KMP-projektet var möjligheten att prova på ny teknik,spara pengar och intressen för teknik, bilar och miljö. Fem faktorer av betydelse under försöketkunde identifieras: bekvämlighet, bilägande, ekonomi, miljö och säkerhet. Effekten av försöket påanvändarna var en ökad miljömedvetenhet där användarna blev mer medvetna om sinbilanvändning och kände att de gjorde något gott för miljön. Dessutom gav testet användarna enmer positiv inställning till elbilar angående marknadens utveckling, elbilars räckvidd och deraspraktiska egenskaper. Sammanfattningsvis behövs mer forskning för att utveckla och upprätta enhelhetsbild över de faktorer som är involverade i införandet och användandet av ett hållbart PSSför mänsklig transport. Dock så har detta examensarbete svarat på frågor angående några av dessafaktorer, vilket kan vara användbart för framtida projekt.
34
Persson, Daniel. "Passenger Flight Experience of Urban Air Mobility." Thesis, Uppsala universitet, Observationell astrofysik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-399699.
Повний текст джерелаАнотація:
The first part of a study of passenger flight experience of Urban Air Mobility was completed. This first part included the design of different Urban Air Mobility vehicle models, in which the passenger flight experience would be quantitatively measured. A first version of a simulator setup, in which the measurements were performed, was also developed. Three concept vehicle models, a single main rotor, a side-by-side rotor and a quadrotor, were designed in the conceptual design software NDARC. The vehicles were electrically propelled with battery technology based on future technology predictions and were designed for autonomous flight with one passenger. The emissions of the vehicles were analyzed and compared with an existing turboshaft helicopter. The interface between NDARC and the flight dynamics analysis and control system software FlightCODE, which was used to create control systems to the NDARC models, was developed to fit the vehicle configurations considered. The simulator setup was created with a VR headset, the flight simulation software X-Plane, an external autopilot software and stress sensors. Trial runs with the simulator setup were performed and gave important data for the continued development. Planned upgrades of the simulation station were presented and the continuation of the study was discussed.
35
Matthews, Patricia Aileen 1963. "Validation of a vehicle mobility computer model for heavy earthmoving equipment." Thesis, The University of Arizona, 1989. http://hdl.handle.net/10150/276946.
Повний текст джерелаАнотація:
The computer program WHEEL is a mathematical model which predicts off-road vehicle performance characteristics. The program was developed using empirical relationships resulting from mobility tests on conventional-sized trucks and tires. The model was subsequently validated by comparing the model's predicted values of vehicle performance parameters, such as net drawbar pull, slip, sinkage and torque, with field test results for conventional-sized vehicles. However, validity of the model for predicting the off-road mobility of vehicles with large diameter tires was not established. The purpose of this study was to provide this validation. Values of net drawbar pull and slip for a Case 2390 tractor with 70.2" diameter driven wheels predicted by computer program WHEEL compare favorably with traction data obtained from tractor performance tests conducted by the University of Arizona Department of Agricultural Engineering. Therefore, the model may be used confidently to analyze performance of vehicles with large diameter wheels.
36
Petersson, Albert. "Mobility-as-a-Service and Electrification of Transport : A Study on Possibilities and Obstacles for Mobility-as-a-Service in Stockholm and Implications for Electrification of Vehicles." Thesis, KTH, Energiteknik, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-273704.
Повний текст джерелаАнотація:
Increasing urbanization drives the need for cities to make transport more efficient, both to meet climate goals as well as creating an attractive living environment for its residents, with less congestion, noise and local pollution. As vehicles are increasingly electrified, further innovations will be needed in order to meet environmental, social and economic sustainability targets, and a more efficient use of vehicles and public transport is central in this endeavor. As new generations are increasingly multimodal and digitalization opens up for innovative concepts, the possibilities for innovations to meet these challenges increases. Against this backdrop, Mobility as a Service (MaaS) has emerged as a concept with the potential to increase sustainability and mobility in cities. MaaS is based on the goal to challenge private car ownership by gathering different mobility services in one application, thereby creating a service offering with the potential to be more attractive than car-ownership. However, many varieties of MaaS exists and intensive efforts are ongoing to understand how MaaS can work in practice. MaaS has been described as a phenomenon with potential to radically change how people move in the future. The purpose of this thesis has been to understand how MaaS can affect the electrification of sustainable cities, with a focus on e-mobility. Starting off by trying to understand barriers to increased car-sharing in Stockholm, possibilities and challenges for MaaS in the city is discussed and its potential effects on emobility there. Data has been collected through continuous evaluation and review of literature and conducted interviews with actors and stakeholders within traffic and sustainable mobility in Stockholm. The results have been analyzed from a sustainable innovation perspective to discuss opportunities and challenges for the development of MaaS and its impact on electrification of vehicles. Collected empirics indicate that Stockholm has good opportunities for facilitating MaaS in the future, mainly due to accessible and extensive public transport (PT). The success of MaaS largely depends on the understanding of the service among consumers and why increased attention and marketing is important. An actor’s logic in individually owning the customer contact to be able to improve a service offering can be an obstacle to the growth of future mobility platforms. This underlines the need for cooperation between involved players to create momentum for MaaS. At the same time, MaaS benefits from a wide range of underlying mobility services and progressive traffic planning. In this regard, the results indicate that there are a number of different instruments at a macro level that could facilitate the sharing services to be developed. A legal definition of car sharing is a first step to facilitate measures to stimulate MaaS. Measures that smooth the relationship between the private car and car sharing services can create momentum for these, for example through exemptions from congestion tax. Access to parking at reasonable costs appears to be a key enabler for flexible shared mobility services in the future, partly because it currently accounts for a large part of the costs, and partly because the degree of flexibility and accessibility is determined by access to parking. At the same time, tougher parking regulations for BRFs and companies have also created a market for mobility services. Long term, there is a consensus that the future of transport is electrified. However, the impact of shared services and MaaS is highly shaped by the technical development of vehicles. Ongoing electrification of vehicles highlights the need for charging infrastructure deployed at locations that fits the need of shared services. Also, the charging equipment and solutions has to be developed to fit the needs of shared services and have a shared customer in mind.Urbanisering ökar behovet för städer att effektivisera sina transportsystem, dels för att möta klimatmål och dels för att skapa en attraktiv stadsmiljö för sina invånare med mindre trängsel, föroreningar och buller. Elektrifiering av fordonsflottan för att minska utsläpp påverkar redan idag transportsektorn i hög grad, men samtidigt krävs ytterligare åtgärder för att möta ekonomiska, miljömässiga och sociala hållbarhetsmål, där ett effektivare utnyttjande av fordonsflottan och kollektivtrafiken är centralt. Yngre generationers förändrade resvanor och digitaliseringens utveckling ökar möjligheterna för innovativa modeller som kan möta dessa behov. Mot denna bakgrund har Mobility as a Service (MaaS) utvecklats som ett koncept med potential att förbättra hållbarhet och utöka mobiliteten i städer. MaaS bygger på att utmana det privata bil-ägandet genom att samla olika mobilitetslösningar i en plattformstjänst, för att skapa ett serviceerbjudande till en användare med potentialen att vara mer attraktivt än en bil. Emellertid finns flertalet olika varianter av MaaS och det pågår intensivt arbete och forskning för att förstå hur MaaS kan fungera i praktiken. Denna studie har utgått från syftet att förstå hur MaaS kan utvecklas och påverka framtidens hållbara städer, med fokus på e-mobility. Med utgångspunkt i att försöka förstå barriärer för bildelningstjänster i Stockholm, diskuteras möjligheter och hinder för MaaS i samma stad och dess eventuella effekter på e-mobility där. Underlag har samlats in genom en litteraturstudie och genom intervjuer med aktörer inom trafik och hållbar mobilitet i Stockholm. En extern workshop i ämnet med inblandade aktörer i Stockholm har också besökts under arbetets gång. Resultaten har analyserats från ett hållbart utvecklings - perspektiv för att kunna diskutera möjligheter och hinder för MaaS framväxt och dess påverkan på elektrifiering av fordon. Underlaget visar att Stockholm har goda möjligheter för framväxt av MaaS framöver, framförallt beroende på en tillgänglig och utbyggd kollektivtrafik. Framgången för MaaS till stor del beror på förståelsen för tjänsten bland konsumenter, varför ökad medvetenhet och marknadsföring generellt är viktigt. Aktörers vilja att enskilt äga kundkontakten för att kunna förbättra ett serviceerbjudande kan vara ett hinder för en framväxt av framtida mobilitetsplattformar och understryker behovet av ett kooperativt samarbete mellan inblandade aktörer för att skapa medvind för MaaS. MaaS gynnas samtidigt av ett stort utbud av underliggande mobilitetsttjänster och progressiv trafikplanering. I detta avseende indikerar resultaten att det finns ett antal olika styrmedel på en makro-nivå som skulle kunna underlätta för delningstjänster att utvecklas. En juridisk definition av bildelning är ett första steg för att underlätta åtgärder för att stimulera delad mobilitet och MaaS. Åtgärder som jämnar ut förhållandet mellan den privata bilen och bildelningstjänster kan skapa medvind för dessa, exempelvis genom undantag från trängselskatt. Tillgång till parkering till rimliga kostnader framträder som en central möjliggörare för flexibla delade mobilitetstjänster i framtiden, dels eftersom det i nuläget står för en stor del av kostnaderna, dels eftersom graden av flexibilitet och tillgänglighet bestäms av tillgång till parkering. Samtidigt har hårdare parkeringsregleringar för BRF: er och företag också skapat en marknad för mobilitetstjänster. På längre sikt framstår det en konsensus kring att framtiden för transporter är elektrifierad, men att MaaS och delade mobilitetstjänsters påverkan på elektrifierade transporter i hög grad avgörs av den tekniska utvecklingen hos fordon. Elektrifiering av fordonsflottan understryker behovet av laddinfrastruktur utformad efter delningstjänster, både geografiskt men även genom att utrustning för laddning är utformad med en delad bil i åtanke.
37
Morrissey, Bryan L. (Bryan Lawrence). "The design and construction of electronic motor control and network interface hardware for advance concept urban mobility vehicles." Thesis, Massachusetts Institute of Technology, 2008. http://hdl.handle.net/1721.1/45376.
Повний текст джерелаАнотація:
Thesis (S.B.)--Massachusetts Institute of Technology, Dept. of Mechanical Engineering, 2008.Includes bibliographical references (leaf 25).
Over the past several years, the Smart Cities Group at MIT's Media Lab has engaged in research to develop several advanced concepts for vehicles to improve urban mobility. This research has focused on developing a modular vehicle architecture, centered around the concept of the self-contained Wheel Robot. The goal is to develop Wheel Robot systems in which all power, transmission, suspension, and steering functions are incorporated into self-contained units with a simple, standardized interface providing for mechanical mounting, electrical power distribution, and access to the vehicle control network. This thesis outlines my research and design work implementing several electronic power and control systems that contribute to ongoing Wheel Robot development efforts. The designs for a high-current motor controller and two electronic sensing and control interfaces are described, and several strategies for further control systems development are proposed.
by Bryan L. Morrissey.
S.B.
38
Milligan, Ross. "Critical evaluation of the battery electric vehicle for sustainable mobility." Thesis, Edinburgh Napier University, 2017. http://researchrepository.napier.ac.uk/Output/978220.
Повний текст джерелаАнотація:
Can Battery Electric Vehicles replace conventional internal combustion engine vehicles for commuting purposes when exposed to a busy corporate activity within the city of Edinburgh? This thesis investigates the application of Battery Electric Vehicles (BEV) use in a commercial business environment in the city of Edinburgh, Scotland UK. The motivation behind this work is to determine if the Battery Electric Vehicle can replace conventional fossil fuel vehicles under real world drive cycles and the desire by many to combat the causes of climate change. Due to the nature of this work a significant part of the work will be underpinned by the quantitative methodology approach to the research. As the question indicates the research is supported by real live data coming from the vehicle both in proprietary data logging as well as reading and analysing the data coming from the vehicles own Electronic Control Unit (ECU).There will be mixed research methodology encompassing quantitative and qualitative research to obtain a complete response in respect to the management of the vehicle these methodologies will be the analysis of the measurable data as well as explorative, to gain the underlying reasons and motivations for choosing a battery electric vehicle as an option to the conventional vehicle for this type of application use.
39
Otto, Willem Liebrecht. "Investigating the introduction of e-mobility in South Africa." Thesis, Stellenbosch : Stellenbosch University, 2014. http://hdl.handle.net/10019.1/95956.
Повний текст джерела
40
Bailey, Alfred Dunlop. "Alligators, Buffaloes, and Bushmasters : the history of the development of the LVT through World War II /." Washington, D.C. : History and Museums Division, Headquarters, U.S. Marine Corps : Copies from Marine Corps Historical Center (Code HDS), 1986. http://purl.access.gpo.gov/GPO/LPS98777.
Повний текст джерелаАнотація:
Thesis (M.A.)--University of Utah, 1976.Includes bibliographical references (p. 268-271). Also available via Internet from the Marines web site. Address as of 7/30/08: http://www.marines.mil/news/publications/Documents/ALLIGATORS,%20BUFFALOES,%20AND%20BUSHMASTERS%20%20PCN%2019000319000.pdf; current access available via PURL.
41
Eriksson, Linus. "Motorbyte BV206 : Utredning och rekommendation." Thesis, Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, 2016. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-59659.
Повний текст джерелаАнотація:
Scandinavian Terrain Vehicles AB (STV) konstruerar och bygger bandvagnar för civilt bruk. I utbudet ingår även vad STV kallar Mid Life Improvement (MLI) vilket syftar i att renovera Hägglunds BV206. En del av MLI-programmet är byte av motor och växellåda där de gamla komponenterna från sent 80-tal till tidigt 90-tal byts ut mot ny motor och växellåda. Den nya kombinationen av motor och växellåda möter militär standard och blir därför en onödigt kostsam del då många av STV:s kunder skulle vara nöjda även med ett enklare alternativ. För att minska kostnaden för MLI-programmet och därmed potentiellt utöka kundkretsen undersöktes möjligheterna till att hitta nya leverantörer av motor och växellåda. Som alternativ undersöktes möjligheterna till drift genom diesel- eller Ottomotor samt transmission av typerna automatisk växellåda, hydrostatisk och elektrisk transmission. Sökning av komponenter utgick från att undersöka vilka komponenttillverkare som används av liknande applikationer. Genom en kriterieviktsmetod blev det rekommenderade lösningsalternativet motorn Cummins ISF 2.8 120 kW och växellådan Allison 1000SP. Kombinationen levererar som mest 1384 Nm och vid 5200 rpm 185 Nm till fördelningsväxeln. Resultatet styrks av att motorn enligt tillverkaren är lämpad för fordon såsom mindre lastbilar och terrängfordon samt att växellådor av samma tillverkare används till bland annat BAE Systems Hägglunds bandvagn BvS10.Scandinavian Terrain Vehicles AB (STV) is a company that designs and builds tracked vehicles for civilian usage. One of their services is what they call Mid Life Improvement (MLI) which serves to recondition Hägglunds BV206’s. A significant part of the MLI-program is the exchange of engine and transmission where components from the late 80’s to early 90’s are replaced with new parts. The new parts consist of a combination of engine and gearbox that meets military standards and is therefore an expensive part especially since many of STV’s customers would settle with a more elementary alternative. To reduce costs within the MLI-program and potentially expand clientele STV sought to find new suppliers for engine and gearbox. Considered alternatives for replacement were Otto- and Diesel engines in coupled with a transmission in the form of either an automatic gearbox, a hydrostatic or an electric transmission. By examining which suppliers were being used by similar applications and selection through a weighted criteria method, the engine Cummins ISF 2.8 120 kW and transmission Allison 1000SP were found to be the best suited alternative. The combination delivers to the distribution gearbox a maximum torque of 1384 Nm and 185 Nm at 5200 rpm. The result is attested by the fact that the engine is according to the manufacturer suitable for applications like trucks and utility vehicles together with that the same brand of transmission is used by BAE Systems Hägglunds in their BvS10.
42
Liu, Hao. "Synthesis of Quantified Impact of Connected Vehicles on Traffic Mobility, Safety, and Emission: Methodology and Simulated Effect for Freeway Facilities." University of Cincinnati / OhioLINK, 2016. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1479816059720034.
Повний текст джерела
43
Mourad, Abood. "The synchronization of shared mobility flows in urban environments." Thesis, Université Paris-Saclay (ComUE), 2019. http://www.theses.fr/2019SACLC041/document.
Повний текст джерелаАнотація:
Avec l’augmentation progressive de la population dans les grandes villes, comme Paris, nous prévoyons d’ici 2050 une augmentation de 50% du trafic routier. En considérant les embouteillages et la pollution que cette augmentation va générer, on voit clairement la nécessité de nouveaux système de mobilité plus durables, comme le covoiturage, ou plus généralement toute la mobilité partagée. En parlant de mobilité partagée, ce n’est pas seulement le partage de trajets de personnes qui ont le même itinéraire au même temps, elle inclut aussi les marchandises.Cette thèse aborde le défi de la synchronisation des flux de passagers et de marchandises dans les systèmes de mobilité urbaine et elle vis à développer des méthodes d’optimisation pour que cette synchronisation dans la mobilité partagée soit faisable. Plus précisément, elle aborde les questions de recherche suivantes:*Q1: Quelles sont les variantes des systèmes de mobilité partagée et comment les optimiser?*Q2: Comment synchroniser les déplacements de personnes et quels gains cette synchronisation peut-elle générer?*Q3: Comment combiner les flux de passagers et de fret et quels sont les avantages attendus?*Q4: Quels sont les effets de l'incertitude sur la planification et l'exploitation de systèmes de mobilité partagée?Dans un premier temps, nous étudions les différentes variantes des systèmes de mobilité partagée et nous les classifions en fonction de leurs modèles, caractéristiques, approches de résolution et contexte d'application. En se basant sur cette revue de littérature, nous identifions deux problèmes de mobilité partagés, que nous considérons en détails dans cette thèse et nous développons des méthodes d'optimisation pour les résoudre.Pour synchroniser les flux de passagers, nous étudions un modèle de covoiturage en utilisant les véhicules autonomes, personnels et partagés, et des points de rencontre où la synchronisation entre passagers peut avoir lieu. Pour cela, une méthode heuristique en deux phases est proposée et une étude de cas sur la ville de New York est présentée.Ensuite, nous développons un modèle d’optimisation qui combine les flux de passagers et de marchandises dans une région urbaine. Le but de ce modèle est d’utiliser les capacités disponibles sur une ligne de transport fixe pour transporter les passagers et des robots transportant des petits colis à leurs destinations finales en considérant que la demande de passagers est stochastique. Les résultats obtenus montrent que les solutions proposées par ces deux modèles peuvent conduire à une meilleure utilisation des systèmes de transport dans les régions urbainesThe rise of research into shared mobility systems reflects emerging challenges, such as rising urbanization rates, traffic congestion, oil prices and environmental concerns. The operations research community has turned towards more sharable and sustainable systems of transportation. Although shared mobility comes with many benefits, it has some challenges that are restricting its widespread adoption. More research is thus needed towards developing new shared mobility systems so that a better use of the available transportation assets can be obtained.This thesis aims at developing efficient models and optimization approaches for synchronizing people and freight flows in an urban environment. As such, the following research questions are addressed throughout the thesis:*Q1: What are the variants of shared mobility systems and how to optimize them?*Q2: How can people trips be synchronized and what gains can this synchronization yields?*Q3: How can people and freight flows be combined and what are the intended benefits?*Q4: What impacts uncertainty can have on planning and operating shared mobility systems?First, we review different variants of the shared mobility problem where either (i) travelers share their rides, or (ii) the transportation of passengers and freight is combined. We then classify these variants according to their models, solution approaches and application context and We provide a comprehensive overview of the recently published papers and case studies. Based on this review, we identify two shared mobility problems, which we study further in this thesis.Second, we study a ridesharing problem where individually-owned and on-demand autonomous vehicles (AVs) are used for transporting passengers and a set of meeting points is used for synchronizing their trips. We develop a two-phase method (a pre-processing algorithm and a matching optimization problem) for assessing the sharing potential of different AV ownership models, and we evaluate them on a case study for New York City.Then, we present a model that integrates freight deliveries to a scheduled line for people transportation where passengers demand, and thus the available capacity for transporting freight, is assumed to be stochastic. We model this problem as a two-stage stochastic problem and we provide a MIP formulation and a sample average approximation (SAA) method along with an Adaptive Large Neighborhood Search (ALNS) algorithm to solve it. We then analyze the proposed approach as well as the impacts of stochastic passengers demand on such integrated system on a computational study.Finally, we summarize the key findings, highlight the main challenges facing shared mobility systems, and suggest potential directions for future research
44
Narullo, Andrea. "Aligning sustainability and corporate strategies: the case of hybrid-electric vehicles and Fiat-Chrysler Automobiles." reponame:Repositório Institucional do FGV, 2015. http://hdl.handle.net/10438/13613.
Повний текст джерелаАнотація:
Submitted by Andrea Narullo (andrea.narullo@gmail.com) on 2015-04-01T21:07:41Z
No. of bitstreams: 1
Thesis_ANDREA_NARULLO.pdf: 918513 bytes, checksum: 7bf8286368315afd80f709515ad77857 (MD5)Rejected by Luana Rodrigues (luana.rodrigues@fgv.br), reason: Dear Andrea, I kindly ask you to do these changes: 1) After the abstract, you have to do the "resumo", abstract in Portuguese. 2) Regarding the knowledge field. There are only 3 field of knowledge of MPGI registered in CAPES (The Government Department responsible for the rules of Masters Programs) and they are: Economia e Finanças Internacionais, Internacionalização de Empresas e Gestão e Competitividade em Empresas Globais. Therefore I advise you to put the field of knowledge recorded in CAPES. After you modify them, please post your thesis again. Best regards, Luana de Assis Rodrigues Cursos de Pós-Graduação – Post Graduate Program (55 11) 3799-3492 SRA - Secretaria de Registros Acadêmicos on 2015-04-06T12:44:38Z (GMT)
Submitted by Andrea Narullo (andrea.narullo@gmail.com) on 2015-04-06T16:43:58Z No. of bitstreams: 1 Thesis_ANDREA_NARULLO.pdf: 920119 bytes, checksum: dfc25b860afd1668375a688aed3bfc8a (MD5)
Approved for entry into archive by Luana Rodrigues (luana.rodrigues@fgv.br) on 2015-04-06T19:20:02Z (GMT) No. of bitstreams: 1 Thesis_ANDREA_NARULLO.pdf: 920119 bytes, checksum: dfc25b860afd1668375a688aed3bfc8a (MD5)
Made available in DSpace on 2015-04-07T13:20:11Z (GMT). No. of bitstreams: 1 Thesis_ANDREA_NARULLO.pdf: 920119 bytes, checksum: dfc25b860afd1668375a688aed3bfc8a (MD5) Previous issue date: 2015-03-10
This study analyses the integration of environmental sustainability into corporate strategy in the context of the car industry. The implementation of sustainability strategies and the development of hybrid-electric vehicles are investigated with reference to the case of a major player in the industry. Among the applications of electric mobility, which will increase the market presence in the forthcoming years due to stringent regulations and customer preferences, the research focused on hybrid-electric vehicles. The sustainability strategies of major car manufacturers and the subsequent implications in terms of product development, with a particular attention to hybrid-electric vehicles, were analysed via secondary data. Additionally, primary data was collected about the sustainability strategy of a major player in the industry and used to perform a case study. The analysis focused on critical drivers and aspects that impact on sustainability strategies aimed at reducing the environmental footprint of the car industry and on the development of hybrid vehicles. The analysis of the data showed that Fiat-Chrysler Automobiles (FCA) had a minor emphasis on electric mobility in terms of sustainability reporting. The conclusion presents an assessment of FCA’s corporate strategy in terms of environmental sustainability and a framework for HEV development with four different approaches that impact on the sustainability strategy of a carmaker.
Este estudo analisa a integração da sustentabilidade ambiental na estratégia das empresas no contexto da indústria automobilística. A implementação de estratégias de sustentabilidade e o desenvolvimento de veículos híbrido-elétricos são investigados com referência ao caso de um ator principal na indústria. Entre as aplicações de mobilidade eléctrica, que irá aumentar a presença no mercado nos próximos anos devido às regulamentações rigorosas e as preferências dos clientes, a pesquisa está focada em veículos híbrido-elétricos. As estratégias de sustentabilidade das grandes fabricantes de automóveis e as implicações subsequentes em termos de desenvolvimento de produtos, com uma atenção especial aos veículos elétricos híbridos, foram analisados através de dados secundários. Além disso, os dados primários foram coletados sobre a estratégia de sustentabilidade de um ator importante na indústria e usados para realizar um estudo de caso. A análise incidiu sobre os fatores críticos e os aspectos que têm impacto sobre as estratégias de sustentabilidade, que visam reduzir o impacto ambiental da indústria automobilística, e sobre o desenvolvimento de veículos híbridos. A análise dos dados mostrou que a Fiat-Chrysler Automobiles (FCA) teve uma ênfase menor na mobilidade eléctrica em termos de relatórios de sustentabilidade. A conclusão apresenta uma avaliação da estratégia corporativa da FCA, em termos de sustentabilidade ambiental, e apresenta um quadro para o desenvolvimento de veículos híbridos com quatro abordagens diferentes que têm impacto sobre a estratégia de sustentabilidade de uma montadora.
45
Guerrero, Ortiz Alfredo. "Autonomous vehicles : a solution to facilitate human mobility and increase face-to-face interactions : a study inside a large campus organization." Thesis, Massachusetts Institute of Technology, 2016. http://hdl.handle.net/1721.1/106249.
Повний текст джерелаАнотація:
Thesis: S.M. in Engineering and Management, Massachusetts Institute of Technology, School of Engineering, System Design and Management Program, Engineering and Management Program, 2016.Cataloged from PDF version of thesis.
Includes bibliographical references (pages 70-72).
The world is and has been in constant change. Disruptive technologies have emerged and integrated into our day to day lives and have radically improved the way we live. Today, in our overly connected world technology is advancing at an incredible fast pace, firms have to change focus to keep up with the shift in the consumer behavior, megacities will continue to emerge; at the same time consciousness is growing towards more efficient and ecological solutions to solve the problems the world is facing what is leading to the redefinition of economic models. The automotive industry in particular is being disrupted to become mobility services companies instead of car makers. With the unquestionable need of people interacting with each other and the imminent need for innovation for any firm to subsist, the next step is to identify the best way the organization can foster interactions and communication between individuals where they are able to continuously innovate to achieve the substantially higher performance every organization is seeking for. Although Autonomous Vehicles are close to a production phase, there are still limitations to their deployment in the full ecosystem. This thesis provides a systems perspective approach by studying a large campus organization and offering a proposal to integrate Autonomous Vehicles technologies with the purpose of increasing face-to-face interactions while at the same time increasing productivity, innovation, and creativity to improve people's lives by facilitating human mobility staging a unique mobility experience.
by Alfredo Guerrero Ortiz.
S.M. in Engineering and Management
46
de, Vos Neil. "Design of a new protective isolating side-door : a virtual model to simulate ingress and egress motion for micro-mobility vehicles." Thesis, Cape Peninsula University of Technology, 2016. http://hdl.handle.net/20.500.11838/2468.
Повний текст джерелаАнотація:
Thesis (MTech (Industrial Design))--Cape Peninsula University of Technology, 2016.This paper is positioned within the broader context of public transportation systems, with specific focus on the development of urban micro first and last mile mobility solutions, and what it could mean for individuals and the economy. Globally, urban problems such as traffic congestion, poor public transport integration, and carbon emissions are forcing us to rethink traditional means of transport. Large fossil-fuelled vehicles and limited public transport infrastructure characterize South Africa’s transport market. Despite the growth in car use, public transport and walking are still the predominant “lifeline” forms of mobility for the vast majority of South Africans in order to access work, schools and services. Moreover, the lack of public transport services in key economic corridors and rural areas of South Africa, the role of the metered taxi industry which is currently effectively limited to serving only the needs of the tourist market due to high charging regimes, and finally, the absence of an effective inner city transport system endorses the lack of first and last mile transportation solutions, and the integration thereof with other transport mediums. This adds to the conflict commuter’s face on a daily basis in obtaining a seamless distribution of transport services. 80% of trips in urban areas are less than 3km, placing urban micro mobility vehicles in an ideal position as a solution to transportation. This describes the investigation conducted into micro-mobility trends within South Africa to identify a key mode of transport that would comply with the stated requirements, and allow accessibility to commuters within the city and to the surrounding communities. In 2014, Mellowcabs, which are electric public transport vehicles that provide first and last mile transport services, was identified as a promising candidate within the local micro-mobility vehicle context. They were in need of a design input for their immediate next requirement, which thus describes the development of a good protective side door system that would isolate passengers in adverse weather conditions, whilst similarly affording comfort and safety features found in normal passenger vehicles. The design process is focused on creating a new side door, however, at the same time the product should be, elegant, smart, fashionable, comfortable, economical, maneuverable and safe. In addition, the virtual product lifecycle management tool, CATIA, allows the design team to get feedback in terms of physical-based data that correspond to how the door could hinder the passengers interaction while they ingress and egress the vehicle. This enables us to try various designs to perform a comparative study without building a single physical prototype.
47
Menon, Nikhil. "Autonomous Vehicles: An Empirical Assessment of Consumers’ Perceptions, Intended Adoption, and Impacts on Household Vehicle Ownership." Scholar Commons, 2017. http://scholarcommons.usf.edu/etd/6901.
Повний текст джерелаАнотація:
Emerging automotive and transportation technologies have provided revolutionary possibilities in the way we might travel in the future. Major car manufacturers and technology giants have demonstrated significant progress in advancing and testing autonomous vehicles in real-life traffic conditions. Governmental agencies are grappling with how to plan transportation systems for a world with autonomous vehicles. Past research has shown that not all technologies are immediately welcomed by the public. Autonomous Vehicles would have to likely go through a similar phase, and would need to overcome not just technological challenges but also social barriers for successful penetration into the marketplace. Most previous studies on consumer opinions, and potential adoption of these technologies provide only descriptive, univariate analyses that fail to extract deeper insights on consumers’ perceptions, and their intended adoption of autonomous vehicles.
Multi-population surveys were conducted to obtain data on consumers’ perceptions, their intended adoption, and eventual use of autonomous vehicles. Descriptive results revealed that around one-fifth of the respondents were unfamiliar about this technology, with larger shares of the younger generations expressing unfamiliarity. Questions on intended adoption of autonomous vehicles were asked across two stages of the survey and results revealed the merit of providing information to the recipients which seem to have assisted them in making more informed decisions about their intended adoption (or non-adoption process). 40% of the respondents were unlikely to adopt autonomous vehicles with a further 20% being unsure, presently. When analyzed across generations, it was seen that higher shares of older generations were unlikely to adopt autonomous vehicles than their younger counterparts. In addition to adoption, other interesting insights on use of autonomous vehicles, and travel behavioral implications of autonomous vehicles were also obtained in this analysis.
Considering the vast market potential of this technology, it is important to obtain insights on possible differences in adoption (or non-adoption) across various consumer market segments. The current dissertation fills these gaps in the literature by providing an in-depth understanding of the potential market segments of autonomous vehicle consumers, and revealing the factors influencing their adoption (or non-adoption of autonomous vehicles). Two-step cluster analysis of consumers’ perceptions of potential benefits and concerns with autonomous vehicles reveal four distinct consumer market segments – the benefits-dominated market segment, the concerns-dominated market segment, the uncertain market segment, and the well-informed market segment. The insights obtained are further used to uncover various triggers influencing the adoption (or non-adoption) of autonomous vehicles across these market segments. It can be seen that in addition to the influence of sociodemographics, various other factors such as current travel characteristics, crash history, and current vehicle purchase inventory have significant influences in the adoption process across each market segment. The results from this exercise provide autonomous vehicle stakeholders with a more in-depth understanding of the potential market segments interested (or uninterested) in adopting autonomous vehicles, which could be used to develop enhanced marketing and policy initiatives to achieve better outcomes.
Considering the high initial cost of autonomous vehicles, novel business models like shared autonomous vehicles (SAVs), could emerge as possible alternatives to individually owning, and operating autonomous vehicles. The recent emergence of popular rideshare giants, such as Uber and Lyft, into the SAV market have further brought some discussion on possible alterations to household vehicle ownership models in a shared environment. Previous research simulating SAV fleets in a gridded city network reveal the cost benefits of having shared autonomous vehicles in comparison to owning and individually operating them. This study looks into the implications of shared autonomous vehicles on current household vehicle ownership and uncovers the factors influencing the relinquishment of a household vehicle to use shared autonomous vehicles for commute trips. Results show that the effect of relinquishing household vehicles is different among single- and multi-vehicle households with different triggers such as socio-demographics, current travel characteristics, crash severities, and vehicle purchase histories influencing the relinquishment of household vehicles.
48
Nordström, Lina, Lars Runesson, and Helena Warnecke. "Light a Spark! Addressing Barriers and Enablers to Increase Demand of Electric Vehicles in Southeast Sweden." Thesis, Blekinge Tekniska Högskola, Institutionen för strategisk hållbar utveckling, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:bth-928.
Повний текст джерелаАнотація:
The Personal Transportation System safeguards peoples’ cultural understanding of freedom: to move individually without being dependent on others. However, the increasing number of private vehicles driven on fossil fuels contributes to unsustainability and one of the most urgent issues, climate change. The authors explored electric vehicles as an alternative to fossil fuel driven vehicles as a way of moving strategically towards sustainability in the Personal Transportation System. In order to increase demand of electric vehicles, barriers need to be overcome. The authors identified perceived barriers and enablers through literature review, interviews with automobile dealers and other stakeholders of the EV sector in Southeast Sweden, as well as through an electronic survey of individuals living in this region. The outcome of the thesis is a pilot strategy using behavior change tools from Community-Based Social Marketing in order to address the perceived barriers and enablers on the demand side of the electric vehicle market. With highly positive attitudes towards electric vehicles in Southeast Sweden, the strategy may be successful in the region; however, it needs to be combined with further measures on the supply side of the market which cannot be addressed with behavior change tools.
49
Ornellas, Regina da Silva. "O consumo colaborativo de transporte individual Car Sharing e o processo decisório do consumidor na cidade de São Paulo." Universidade de São Paulo, 2012. http://www.teses.usp.br/teses/disponiveis/12/12139/tde-17042013-184453/.
Повний текст джерелаАнотація:
A partir dos anos 1980, a cidade de São Paulo passou a ter participação de destaque em funções decisivas do país, relacionadas á atividades econômicas, financeiras, tecnológicas e sociais e passou a ser considerada como o ponto estratégico do processo de internacionalização da economia brasileira. Ao assumir esse novo papel, transformou-se em uma metrópole, com alta concentração de pessoas e atividades. Isso refletiu no funcionamento e desempenho da cidade, especialmente na configuração espacial e organização funcional e territorial, resultando em dificuldades, entre essas a micro acessibilidade. Isso levou muitos habitantes de São Paulo a adquirirem seu próprio veículo para deslocamento, que resultou em um número crescente de vendas na indústria automobilística e uma cidade com altos índices de congestionamento, poluição e acúmulo de sucata. Analisando as consequências dessas mudanças, alguns estudiosos pesquisaram medidas de melhoria, que resultassem em uma economia ativa, mas ao mesmo tempo consciente. No século XXI surge o Consumo Colaborativo, que é um movimento, criado nos Estados Unidos, que visa o consumo consciente e a melhoria de qualidade de vida para as gerações atuais e futuras. Uma das vertentes desse movimento é a partilha de serviços, no qual está incluído o Car Sharing, que foi identificado como uma medida alternativa de locomoção flexível, custo interessante e que incentiva a sustentabilidade. Embora o sistema apresente-se como uma alternativa adequada para a cidade de São Paulo, esse trabalhou buscou analisar a aceitação do sistema pela população, identificando fatores favoráveis e desfavoráveis á implementação e perfis de propensos usuários e não-usuários. O estudo foi iniciado pela apresentação do histórico e os efeitos causados pela transformação da cidade de São Paulo ao longo dos anos. Em seguida, apresenta a revisão teórica que foi baseada no processo de decisão com aplicação da racionalidade limitada e heurísticas de julgamento e são explicitados os conceitos de Consumo Colaborativo e Car Sharing, incluindo exemplos de países que possuem o sistema estabelecido. Para a parte empírica do estudo, foi aplicada a pesquisa survey com pessoas que possuem habilitação na cidade de São Paulo. Por fim são analisados os resultados, com aplicações de técnicas de estatística descritiva e dessa forma, originam-se conclusões de propensão à adesão do Car Sharing em São Paulo por diferentes classes sociais e rendas, com uso em modalidades diversas, sugerindo uma tendência a mudanças comportamentais futuras na cidade.From the 1980, São Paulo city have started an outstanding participation in decisive roles in the country, will related economic, financial, technological and social and came to be regarded as the strategic point of the internationalization process from Brazilian economy. In assuming this new role, became a metropolis, with a high concentration of people and activities. This reflected in the functioning and performance of the city, especially in the spatial configuration and functional and territorial organization, resulting in difficulties, among these the microacessibilidade. This has led many inhabitants of São Paulo to purchase their own vehicle to shift, resulting in an increasing number of sales in the industry\'s vehicle and a city with high levels of congestion, pollution and accumulation of junk. Analyzing the consequences of these changes, some scholars researched improvement measures, which resulted in an active economy, but at the same time conscious. In the XXI appeared Collaborative Consumption, that is a movement created in the United States, aimed at consumer awareness and improving quality of life for present and future generations. One of the strands of this movement is the sharing of services, which is included in the Car Sharing, which was identified as an alternative measure of locomotion flexible, interesting cost and encouraging sustainability. Although the system presents itself as a suitable alternative to São Paulo city, this study examined the system acceptance by the population, identifying favorable and unfavorable factors to implementation and profiles of users and non-users. The study initiated by the presentation of the history and effects caused by the transformation of São Paulo city over the years. It then presents a theoretical review that was based on the decision-making process with application of bounded rationality and heuristics in judgment and are explained the concepts of Collaborative Consumption and Car Sharing, including examples of countries that have the established system. For the empirical part of the study, was applied survey research with people that have qualification in São Paulo. Finally the results were analyzed, with applications of descriptive statistical techniques and thus originate conclusions propensity membership of Car Sharing in Sao Paulo by different social classes and income, using various modalities, suggesting a tendency to change future behavior in the city.
50
Azmat, Muhammad, Sebastian Kummer, Moura Lara T, Gennaro Federico Di, and Rene Moser. "Future Outlook of Highway Operations with Implementation of Innovative Technologies Like AV, CV, IoT and Big Data." MDPI, 2019. http://dx.doi.org/10.3390/logistics3020015.
Повний текст джерелаАнотація:
In the last couple of decades, there has been an unparalleled growth in number of people who can afford motorized vehicles. This is increasing the number of vehicles on roads at an alarming rate and existing infrastructure and conventional methods of traffic management are becoming inefficient both on highways and in urban areas. It is very important that our highways are up and running 24/7 as they not only provide a passage for human beings to move from one place to another, but also are the most important mode for intercity or international transfer of goods. There is an utter need of adapting the new world order, where daily processes are driven with the help of innovative technologies. It is highly likely that technological advancements like autonomous or connected vehicles, big data and the Internet of things can provide highway operators with a solution that might resolve unforeseeable challenges. This investigative exploratory research identifies and highlights the impact of new technological advancements in the automotive industry on highways and highway operators. The data for this research was collected on a Likert scale type online survey, from different organizations around the world (actively or passively involved in highway operations). The data was further tested for its empirical significance with non-parametric binomial and Wilcoxon signed rank tests, supported by a descriptive analysis. The results of this study are in line with theoretical and conceptual work done by several independent corporations and academic researchers. It is evident form the opinions of seasoned professionals that these technological advancements withhold the potential to resolve all potential challenges and revolutionize highway operations.