Chapter
Jul 2, 2019

Analysis and Optimization of Pedestrian Traffic Signal at Intersections

Publication: CICTP 2019

Abstract

In this paper, we research the safety perception of pedestrian crossings under different crosswalk conditions and analyze the causes of conflicts between pedestrians and other traffic participants. We also offer suggestions on pedestrian clearance and mitigating conflicts between pedestrian and turning. The study conducted intercept surveys at crosswalks in Shanghai, where pedestrians were asked to rate their safety perception. The result is the late walkers (LW) have the worst safety perception, while green walkers (GW), and red walkers (RW) have a similarly higher safety perception. Results show that safety perception is improved with presence of a refuge island. Pedestrian clearance and turning vehicles are the most serious safety problems at intersections. We propose to use flashing red pedestrian clearance signals and the clearance time should be calculated under different conditions. Finally, we recommend several signal control strategies that may be effective in reduce the conflicts between pedestrians and turning vehicles.

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Go to CICTP 2019
CICTP 2019
Pages: 3183 - 3194

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Published online: Jul 2, 2019

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Keping Li
Tongji Univ., Shanghai 200092, China; Lianyungang Jari Electronics Co., Ltd., Lianyungang 222061, China.
Junping Xiang [email protected]
College of Transportation Engineering, Tongji Univ., No. 48, Caoan Hwy., Shanghai 201804, China. E-mail: [email protected]
Xiaochen Yu
Tongji Univ., Shanghai 200092, China; Lianyungang Jari Electronics Co., Ltd., Lianyungang 222061, China.
Ying Ni
Tongji Univ., Shanghai 200092, China; Lianyungang Jari Electronics Co., Ltd., Lianyungang 222061, China.

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