Chapter
Apr 26, 2012
Design LRT Signal Priority Strategy to Improve Arterial Traffic Mobility
Authors: Jatinder Tiwana [email protected], Mehmood Zaman [email protected], Tony Z. Qiu [email protected], and Arun Bhowmick [email protected]Author Affiliations
Publication: ICTIS 2011: Multimodal Approach to Sustained Transportation System Development: Information, Technology, Implementation
Abstract
In this research we studied the impact of Transit Signal Priority (TSP) on the arterial mobility. For the purpose of experiment we have chosen the 111th Street corridor in Edmonton. Recently the LRT extension was carried out and the LRT passes through this intersection. What is peculiar to this intersection is that shopping mall, the LRT and transit bus stations are all located close-by. Moreover, the transit buses have to cross the LRT tracks for entry and exit from the station. For the purpose of analysis and optimizing the LRT crossing signals, we used the Ring Barrier Controller (RBC) and Vehicle Actuated Programming (VAP) in VISSIM. The three options explored were (a) LRT preemption, (b) LRT prediction priority (c) LRT/Transit Bus priority. In options (b) and (c), the arrival time of the LRT is predicted in advance and the signal phases are modified to ensure uninterrupted passage of the LRT. This leads to better performance as there is lesser number of signal changes compared to the first option. In the absence of dedicated bus lanes option (b) was found to be most beneficial.
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© 2011 American Society of Civil Engineers.
History
Published online: Apr 26, 2012
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Graduate Research Assistant, Department of Civil and Environmental Engineering, University of Alberta, 6-106 NREF, Edmonton, Alberta, Canada T6G 2W2.E-mail: [email protected]
Graduate Research Assistant, Department of Civil and Environmental Engineering, University of Alberta, 6-106 NREF, Edmonton, Alberta, Canada T6G 2W2.E-mail: [email protected]
Assistant Professor, Department of Civil and Environmental Engineering, University of Alberta, 3-005 NREF, Edmonton, Alberta, Canada T6G 2W2.E-mail: [email protected]
Graduate Research Assistant, Department of Civil and Environmental Engineering, University of Alberta, 6-106 NREF, Edmonton, Alberta, Canada T6G 2W2.E-mail: [email protected]
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