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 22 for “"Signal priority"”.
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Performance Evaluation of Transit Signal Priority in Multi-Directional Signal Priority Request Situations
Ring Barrier signal controller in VISSIM traffic simulation software provides different options for configuring Transit Signal Priority. This controller emulator allows for considering arterial progression by Priority Progression parameter; preferring specific transit signal priority calls to other …
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Transit signal priority strategies : impacts and effects of various factors
A Transit Signal Priority (TSP) system’s fundamental job is to give priority to transit vehicles enabling faster passage through signalized intersections. Through a system that responds to transit vehicles approaching an intersection, green phase extension or red truncation is granted to minimize …
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An Assessment Methodology for Emergency Vehicle Traffic Signal Priority Systems
Emergency vehicle traffic signal priority systems allow emergency vehicles such as fire and emergency medical vehicles to request and receive a green traffic signal indication when approaching an intersection. Such systems have been around for a number of years, however, there is little …
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An Evaluation of Transit signal Priority and SCOOT Adaptive Signal control
… in urban areas using lower cost means. Transit signal priority is considered to be one of the most effective ways to improve the service of transit vehicles. Transit signal priority has become a very popular topic in transportation in the past 20 to 30 years and it has been implemented in many …
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Evaluation of Service Reliability Impacts of Traffic Signal Priority Strategies for Bus Transit
… the design, testing, and deployment of traffic signal priority strategies for transit buses. However, a clear consensus has not emerged regarding the evaluation of these strategies. Each agency implementing these strategies can have differing goals, and there are often conflicting issues, needs, …
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Evaluating the Transit Signal Priority Impacts along the U.S. 1 Corridor in Northern Verginia
… in peak hours accompanied by closely located signalized intersections and nearside bus stops on U.S. 1, result in congestion and traffic delays that bus transit may be able to alleviate to some extent. The capital investment and operating costs of other transit solutions such as "Bus Rapid …
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Modeling of traffic signal control and transit signal priority strategies in a microscopic simulation laboratory
Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Civil and Environmental Engineering, 2001.
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Towards the Development of a Decision Support System for Emergency Vehicle Preemption and Transit Signal Priority Investment Planning
… making it possible to deploy advanced traffic signal controllers capable of integrating emergency vehicle preemption and transit priority operations. However, investment planning for such an integrated system is not a trivial task. Investment planning for such a system requires a holistic …
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Evaluating the Impacts of Transit Signal Priority Strategies on Traffic Flow Characteristics:Case Study along U.S.1, Fairfax County, Virginia
… in urban areas using low cost means. Transit signal priority is considered to be an effective way to improve transit service reliability and efficiency. In light of the interest in testing and deploying transit signal priority on a major arterial in Northern Virginia, this research focuses on …
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Benefits of emerging transportation technologies : simulation analysis and policy issues
… technologies and applications such as traffic signal priority and advanced vehicle location for transit. In addition, the existing capability for modeling incident detection and management is reviewed. These applications are tested on a traffic network on Stockholm, Sweden, about to undergo new …
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Evaluation of bus priority strategies for BRT operations
… collection, high quality vehicles and stations, signal priority, among others. Transit Signal Priority (TSP) is frequently seen as an option to improve performance of public transportation systems at the operational level. TSP is an operational strategy that aims at reducing the delays at …
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Moving from conventional bus service towards bus rapid transit : establishing priorities
… The key attributes defined were: 1) right of way priority; 2) expedited boarding and alighting; 3) knowledge-based planning and operations; 4) high frequency; 5) high reliability; 6) distinct image; 7) connectivity; 8) land use integration. The physical bus components that could be changed in …
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Transit preferential treatment : a public policy-making perspective
… innovative policies in order to give the full priority to transit. Preferential treatment is a broad definition that combines all the means to insure that priority is given to transit (queue jump, traffic signal priority, exclusive lane, tramways ...). The main concerns about Zurich and …
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Assessing the Performance of an Emergency Vehicle Preemption System: A Case Study on U.S. 1 in Fairfax County, Virginia
… to provide emergency vehicle preemption (EVP) at signalized intersections. Industry and transportation researchers have worked to develop analytical methods to establish the degree of benefit of emergency vehicle preemption to the emergency vehicle (EV) community and the impact on other road user …
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Design and evaluation of BRT and limited-stop services
… segregation, enhanced boarding, and Transit Signal Priority. The results of the analysis shows the critical importance of the enforcement of preferential rights-of-way (in BRT scenarios) to achieve high corridor performance and that frequency shares (the ratio of limit-stop services buses to …
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A Framework and Analytical Methods for Evaluation of Preferential Treatment for Emergency and Transit Vehicles at Signalized Intersections
… for emergency vehicles (EV) and conditional priority for transit vehicles at signalized intersections. EV preemption employs technologies and signal control strategies seeking to reduce emergency vehicle crash potential and response times. Transit priority employs the same technologies with …
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Evaluating Transportation Network Mobility and Enhancing Traffic Signal Operations Performance Using Probe Data and Connected Vehicle Technology
… for improving operational efficiency at a signalized intersection. Two innovative traffic signal control algorithms are established to demonstrate real-time delay optimization for both connected and non-connected vehicles. The third part of this dissertation extends the use of CV-technology …
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Modeling Transit Vehicle Travel Time Components for Use in Transit Applications
… system users, operators and agencies is Transit Signal Priority (TSP). TSP favors transit vehicles in the allocation of green times at traffic signals. A successful deployment of TSP depends on different factors including the prediction of various components of transit vehicle travel times to …
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A Macroscopic Model for Evaluating the Impact of Emergency Vehicle Signla Preemption on Traffic
In the past, the study of Emergency Vehicle (EV) signal preemption has been mostly done using field studies. None of the simulation models that are currently commercially available have the capability to model the presence of EVs and simulate the traffic dynamics of the vehicles surrounding them. …
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