Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
Results
Showing 1 to 20 of 242 for “"Traffic congestion"”.
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An approach to predict traffic congestion
… this research is to develop a model to predict congestion. This model is developed using the techniques of simulation and as the model requires dynamic modeling, DYNAMO is used. This model incorporates the three-regime linear model for establishing a relationship between speed and density of the …
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Dynamic traffic congestion pricing mechanism with user-centric considerations
… we consider the problem of designing real-time traffic routing systems in urban areas. Optimal dynamic routing for multiple passengers is known to be computationally hard due to its combinatorial nature. To overcome this difficulty, we propose a novel mechanism called User-Centric Dynamic …
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Assessing the relationship between recurring and nonrecurring traffic congestion
… limited aggregation to describe highway traffic flow. The formulation is platoon based and is most applicable for describing uninterrupted-flow facilities. The model explains empirical models in terms of fractal dimensions. The concepts of change in length of a platoon and a discrete …
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Suitability of distributed mobile wireless networking for urban traffic congestion mitigation
… wireless networking for the purposes of urban traffic congestion mitigation. The technologies of global positioning system (GPS), wireless networking, and mobile ad-hoc networking (MANET) protocols are surveyed for potential usability and applicability in a peer-to-peer highway vehicle network. …
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Three Essays on Travel Demand Management Strategies for Traffic Congestion Mitigation
… used in the model. We also compare the level of traffic congestion under the scenarios with and without traffic congestion pricing. The third essay is based on the second essay where different scenarios of the travel demand management policies are evaluated and analyzed. There are two parts in …
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THE EFFECT OF URBAN TRANSPORTATION SYSTEMS ON EMPLOYMENT OUTCOMES AND TRAFFIC CONGESTION
… systems on employment outcomes and traffic congestion. The first paper evaluates the labor market effects of subway systems on low-skilled workers. A model of labor supply predicts that this should improve search and employment outcomes. The empirical findings confirm that improved …
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Exploring the Effects of Cooperative Adaptive Cruise Control in Mitigating Traffic Congestion
… Adaptive Cruise Control) equipped vehicles on traffic-flow characteristics of a multilane highway system. The research identifies how CACC vehicles affect the dynamics of traffic flow on a road network and demonstrates the potential benefits of reducing traffic congestion due to stop-and-go …
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Impact assessment through microscopic simulation: a sustainable approach to improving traffic congestion
… into the PTV Vissim software, and peak-hour traffic congestion and patterns are investigated. This thesis focuses on the influence of travel time on urban mobility and transport planning. The results reveal the need for innovative solutions to enhance traffic flows along the N2 highway …
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Integrated allocation and utilization of airport capacity to mitigate air traffic congestion
The combination of air traffic growth and airport capacity limitations has resulted in significant congestion throughout the US National Airspace System, which imposes large costs on the airlines, passengers and society. Absent opportunities for capacity expansion, the mitigation of air traffic …
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Bridging the Gap Between Real-time Video and Backlogged Traffic Congestion Control
… resource constraints is critical. However, video congestion control algorithms have been criticized for their sub-optimal performance in managing network congestion and maintaining satisfactory video quality and latency. At the same time, state-of-the-art congestion control algorithms have …
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Understanding Traffic Congestion Through Multiscale Analysis: Sensor Deployment, Car-Following and Universal Scaling
Traffic congestion is a persistent and multifaceted problem in urban transportation systems. Its characterization requires understanding not only driver behavior and infrastructure but also the limitations of the data and models used to represent traffic dynamics. This thesis approaches the problem …
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Strategies for the alleviation of traffic congestion in the central city of Athens
… the "strangulation" of the city of Athens. Smog, traffic congestion, parking shortages, noise and excessive delays are everyday problems for the Athenians. The street network and the public transportation systems are not able to accommodate the existing traffic demands. An effort was made to …
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An adaptive strategy for providing dynamic route guidance under non-recurrent traffic congestion
Traffic congestion on urban road networks has been recognized as one of the most serious problems with which modern cities are confronted. It is generally anticipated that Dynamic Route Guidance Systems (DRGS) will play an important role in reducing urban traffic congestion and improving traffic …
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Selected growth management techniques for use in mitigating traffic congestion in Masssachusetts [sic] suburban corridors
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1987.
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Government policies to alleviate suburban traffic congestion : an institutional and economic analysis of the transportation-land use system
Thesis (M.C.P.)--Massachusetts Institute of Technology, Dept. of Urban Studies and Planning, 1989.
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On the role of signaling in mitigation of road-traffic congestion: The price of anarchy of signaling-based strategies in stochastic networks
… presence of vagaries, following the canonical congestion game approach. We allow a central controller to observe nature's state and make exploit the information gap between her and the drivers, to cater information to drivers in a most social manner. In addition to the extreme cases of full and …
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Essays on the economics of urban transportation
This thesis includes three papers exploring urban traffic congestion and the interplay between urban commuting and economic activity in developing countries. The first paper studies the impact of peak-hour road congestion pricing on commuter welfare, using a field experiment and GPS-based data …
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Enhancing TCP traffic flow performance with a proportional and integral rate controller: Theory, design, and performance evaluation
This thesis proposes a new network traffic congestion control algorithm---the PIR (Proportional and Integral Rate) controller. It is designed to overcome the shortcomings of RED and some other related AQM (Active Queue Management) techniques developed in recent years. That is to avoid unnecessary …
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Understanding the differences in the development and use of advanced traveler information systems for vehicles (ATIS/V) in the U.S., Germany, and Japan
Traffic congestion is becoming a serious problem. As a solution, advanced traveler information systems (ATIS) mitigate traffic congestion by providing real-time traffic information to travelers. ATIS includes various applications such as radio traffic reporting services and websites. Among those, …
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