Chapter
Jun 29, 2016
Simulation for the Impacts of Speed Bumps on Traffic Flow Considering Driving Behaviors’ Diversity
Authors: Cheng Li [email protected], Hongwei Guo [email protected], Yujie Zhang [email protected], Wuhong Wang [email protected], and Xiaobei Jiang [email protected]Author Affiliations
Publication: CICTP 2016
Abstract
Speed bumps are extensively used to regulate speed and improve traffic safety. Speed bumps can also affect traffic characteristics significantly. Aiming to explore the impact of speed bumps on traffic flow, we propose a simulating method with improved cellular automata model based on the NaSch model. The developed model incorporates the aspects of three diverse driving behaviors: (1) type of drivers (cautious or rash), (2) decelerating range, and (3) passing speed. Numerical results show that traffic flow state experience phase transitions from free flow to stable flow to traffic jams due to the installation of speed bumps. During the stable flow, a speed bump can cause small-scale traffic jams in the upstream. The influence of speed bumps enlarges significantly as cautious drivers increase and the passing speed declines, but the expansion of decelerating range has a less significant effect. The results hope to enlighten sensible applications of speed bumps.
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© 2016 American Society of Civil Engineers.
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Published online: Jun 29, 2016
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Dept. of Transportation Engineering, School of Mechanical Engineering, Beijing Institute of Technology, Haidian District, Beijing 100081, P.R. China. E-mail: [email protected]
Dept. of Transportation Engineering, School of Mechanical Engineering, Beijing Institute of Technology, Haidian District, Beijing 100081, P.R. China. E-mail: [email protected]
Dept. of Transportation Engineering, School of Mechanical Engineering, Beijing Institute of Technology, Haidian District, Beijing 100081, P.R. China. E-mail: [email protected]
Dept. of Transportation Engineering, School of Mechanical Engineering, Beijing Institute of Technology, Haidian District, Beijing 100081, P.R. China. E-mail: [email protected]
Dept. of Transportation Engineering, School of Mechanical Engineering, Beijing Institute of Technology, Haidian District, Beijing 100081, P.R. China. E-mail: [email protected]
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