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Aug 12, 2020
A Coordinated Signal Control Method under the Environment of Cooperative Vehicle Infrastructure System
Authors: Xiancai Jiang, Ph.D. [email protected], Yu Jin [email protected], and Zhiyun Xie [email protected]Author Affiliations
Publication: CICTP 2020
ABSTRACT
The traditional coordinated signal control method suffers from narrow bandwidth and low utilization of green time. With the help of bidirectional communication function of cooperative vehicle infrastructure system, a speed guidance strategy at the intersections for arterial coordinated signal control is proposed. Considering the change of stops before and after the application of the proposed strategy, the delay and stops are weighted to form a comprehensive performance index (PI), then the PI model is established, and the solution algorithm is given. An optimized model of traffic signal timing parameters is constructed based on minimizing average PI per vehicle. The sensitivity of the optimization model is analyzed from the aspects of the adjustment amplitude of left-turn phase green time, speed guidance range, average travel speed and intersection spacing, and the applicable conditions of the model are determined. The simulation results showed that the average PI proposed in this paper was reduced by 5.5% compared with the coordinated signal control scheme with only implementing the speed guidance, and the effectiveness of the optimized model was validated.
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© 2020 American Society of Civil Engineers.
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Published online: Aug 12, 2020
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1School of Transportation Science and Engineering, Harbin Institute of Technology, No. 73, Huanghe River Rd., Nangang District, Harbin, Heilongjiang 150090, China. Email: [email protected]
2School of Transportation Science and Engineering, Harbin Institute of Technology, No. 73, Huanghe River Rd., Nangang District, Harbin, Heilongjiang 150090, China. Email: [email protected]
3School of Transportation Science and Engineering, Harbin Institute of Technology, No. 73, Huanghe River Rd., Nangang District, Harbin, Heilongjiang 150090, China. Email: [email protected]
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