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.
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Showing 1 to 20 of 85 for “"Transit Systems"”.
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Real time dispatching control in transit systems
… of reliable service is a goal of any rail transit agency. Reliability is difficult to maintain due to the perturbations that serve to disrupt headway sequences. These incidents that affect the service quality of transportation agencies can be categorized into two types, major disruptions …
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Improving the network performance of urban transit systems
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2000.
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Recuperation of Regenerative Braking Energy in Electric Rail Transit Systems
<p>Electric rail transit systems are large consumers of energy. In trains with regenerative braking capability, a fraction of the energy used to power a train is regenerated during braking. This regenerated energy, if not properly captured, is typically dumped in the form of heat to avoid …
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A real-time train holding model for rail transit systems
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2001.
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Evaluating the robustness of crew schedules for rail transit systems
… to be applicable to a range of metro lines and systems. The thesis has four components: first, a description of the types of incidents that take place on a line, the type of service control interventions used to respond to incidents, and the intimate relationship between the crew schedule and …
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A systematic analysis of PRT, express bus, and rail transit systems.
Thesis: M.S., Massachusetts Institute of Technology, Department of Civil Engineering, 1973
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Design and control of resilient interconnected microgrids for reliable mass transit systems
Mass transit systems are relied on a daily basis to transport millions of passengers and bring billions of dollars' worth of economic goods to market. While some forms of mass transit rely on a fuel, electrified railway systems are dependent on the electric grid. The electric grid is becoming more …
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Managing privately produced rail transit systems : a case study of Tren Urbano
… the need for efficient public transportation systems is being increasingly felt. Rail transit systems are best suited to meet the capacity requirements in several large cities. However, such systems are very expensive and take several years to build. Most such systems face operating losses and …
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Integrated real-time disruption recovery strategies : a model for rail transit systems
Rail transit systems are subject to frequent disruptions caused by a variety of random disturbances, signal problems and door problems, for example. Such disruptions usually last for 10 to 20 minutes, which degrades the level of service significantly. To improve service reliability, transit …
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The Measurement and Evaluation of Urban Transit Systems: The Case of Bus Routes
… measurement and efficiency analyses for transit industries have been gaining significance due to severe operating conditions and financial constraints in which these transit agencies provide service. In this research, we present an approach to measure the performance of Urban Transit …
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System strategies in the management of transit systems towards the end of their life cycle
… evaluates essential strategies needed for the transit authority/operator to deal with end of life cycle challenges of Rapid Transit Systems (RTS) systems. RTS systems are elaborate systems consisting of various subsystems. It is believed that one of the greatest challenges of such systems is …
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Quantifying the Post-Pandemic Urban Activity & Mobility Regime: Implications for Adaptation and Future Planning of Cities and Public Transit Systems
… implications for the future of cities and public transit systems, using high-resolution location-based services data and a case study within the Washington, DC metropolitan area. First, a custom analysis framework is developed where geographical units - subcenters and neighborhoods - are designed …
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Privatization of transit in Yokohama : social and financial impacts
… of the privatization of municipally-owned transit systems from the perspective of a privatizing city and its citizens by studying the case of Yokohama, Japan's second largest city whose transit systems are now subject to privatization arguments. First, privatization models are defined based …
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Economic efficiency of the collection distribution component of urban mass transit
Recent experiences with urban mass transit systems in North American cities indicate improved efficiency of operation through better co-ordination of mass transit system components. In particular, efficiencies have been improved through innovations in the collection-distribution of transit …
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Mitigating transit noise through urban planning and design
… techniques can be used for path mitigation of transit noise. Noise problems from rail transit systems persist despite the existence of at-source noise reduction techniques for rail transit systems and substantial research on architectural acoustic solutions. Conventional planning literature …
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Assessment of subsidized shared transport services on mobility patterns: Evidence and Lessons from cellphone mobility data
… critical for designing sustainable and equitable transit systems. However, empirical evidence on the real-world impacts of subsidized shared transport services remains limited. This study evaluates the impacts of two such services: the Mobility on Demand (MOD) Project and Metro Micro Project, on …
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Fiscal federalism and its potential effects on public transportation in mid-sized cities
… how a greater reliance on local funds for public transit is a prudent topic. This thesis focuses on expenditures (both total and operating) by public transit systems in four mid-sized US cities and their revenue sources between 2005 and 2010 in order to ascertain if systems that are more reliant …
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The relationship between rail transit ridership and built environment and transportation system
… Due to its higher capacity and reliability, rail transit often serves as the main means to connect major trip origins and destinations in a metropolitan area. We have witnessed that rail transit systems continue to be built or extended in cities around the world, including the cities in the U.S. …
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Matching transit and open public spaces : open space oriented transit for successful transit oriented development in Guadalajara
… urban spatial experience and transportation systems. With a large number of cities considering transit oriented development (TOD) - an urban model whose goal is to align urban development to public transportation patterns by creating walkable, mixed and diverse neighborhoods - as the primary …
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