Modeling the Pedestrian Delay at Signalized Intersections with Two-Stage Crossing: Considering Physical Queuing Length
Publication: Journal of Transportation Engineering, Part A: Systems
Volume 148, Issue 11
Abstract
An improved pedestrian delay model was proposed for signalized intersections with a two-stage crossing in this paper. This delay model considers the pedestrian physical queuing length when they are waiting on the curbside and the refuge island. It can significantly improve the estimation accuracy of the second-stage delay for pedestrians. The shock wave theory and a triangular-shaped fundamental diagram were used to model pedestrian queue formation and dissipation. The proposed model is presented in a general form for estimating the first-stage delay and second-stage delay classified in 12 different scenarios. The model was compared with the existing two-stage delay model by microscopic simulations with different signal settings and pedestrian volume settings. Results show our modified model is more accurate than the existing model under medium and high pedestrian arrival rates.
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Data Availability Statement
Some or all data, models, or codes that support the findings of this study are available from the corresponding author upon reasonable request.
Acknowledgments
This research was supported by the National Key R&D Program, China (2018YFB1601000), National Natural Science Foundation of China (71901060 and 52172342), Jiangsu Provincial Double-Innovation Ph.D. Program (JSSCBS20210108), and China Scholarship Council (202006090205).
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Published In
Journal of Transportation Engineering, Part A: Systems
Volume 148 • Issue 11 • November 2022
Copyright
© 2022 American Society of Civil Engineers.
History
Received: Mar 6, 2022
Accepted: Jun 28, 2022
Published online: Sep 9, 2022
Published in print: Nov 1, 2022
Discussion open until: Feb 9, 2023
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