信号协调控制干线交通安全仿真分析

doi:10.16265/j.cnki.issn1003-3033.2020.03.022

中国安全科学学报 ›› 2020, Vol. 30 ›› Issue (3): 143-149.doi: 10.16265/j.cnki.issn1003-3033.2020.03.022

信号协调控制干线交通安全仿真分析

江欣国^1,2,3 教授, 任瀚堃¹, 范英飞¹, 李想¹, 付川云^1,2,3 讲师

1.西南交通大学交通运输与物流学院,四川成都 611756;
2.综合交通运输智能化国家地方联合工程试验室,四川成都 611756;
3.综合交通大数据应用技术国家工程试验室,四川成都 611756

收稿日期:2019-12-14 修回日期:2020-02-14 出版日期:2020-03-28 发布日期:2021-01-26
作者简介:江欣国(1975—),男,福建闽侯人,博士,教授,主要从事交通安全方面的研究。E-mail:xjiang@swjtu.edu.cn。
基金资助:
国家自然科学基金资助(71771191,71801182);国家留学基金委资助(201907000065);四川省科技创新人才项目(2019JDRC0023)。

Simulation analysis on traffic safety of signal-coordinated arteries

JIANG Xinguo^1,2,3, REN Hankun¹, FAN Yingfei¹, LI Xiang¹, FU Chuanyun^1,2,3

1. School of Transportation and Logistics, Southwest Jiaotong University, Chengdu Sichuan 611756, China;
2. National United Engineering Laboratory of Integrated and Intelligent Transportation, Chengdu Sichuan 611756, China;
3. National Engineering Laboratory of Integrated Transportation Big Data Application Technology, Chengdu Sichuan 611756, China

Received:2019-12-14 Revised:2020-02-14 Online:2020-03-28 Published:2021-01-26

摘要/Abstract

摘要： 为减少信号协调干线事故风险,探究城市干线使用信号协调控制前后道路交通安全水平的变化;采集成都市蜀汉路的干线交通数据,建立基于交通仿真冲突的间接安全评价模型(SSAM);利用核回归拟合仿真交通冲突数,根据拟合结果评价信号协调控制前后干线交通安全水平。结果表明:相较于非信号协调控制,信号协调控制干线在双向干线交通流量小于3 864 pcu/h时,整体安全性能较差;车流中小型车占比过高或过低(P<0.73或P>0.83)都会使信号协调干线增加冲突;协调控制干线的直角冲突数更少但追尾冲突数更多。

关键词: 信号协调干线, 交通安全, 微观交通仿真, 间接安全评价模型(SSAM), 核回归

Abstract: In order to reduce accidents of signal-coordinated arteries, changes of traffic safety performance before and after adopting coordinated signal control on arteries were explored. Then, with data from Shuhan road in Chengdu collected, SSAM was established based on traffic simulation conflicts. Finally, a kernel regression model was used to fit simulated traffic conflicts, and safety of arteries before and after coordinated signal control was evaluated based on fitting results. The results show that arteries with signal-coordinated control comparatively has worse safety performance when traffic volume is under 3 864 pcu/h. There are more conflicts as small cars reach a too high or too low proportion(P<0.73 or P>0.83)in traffic flow, and signal-coordinated arteries have fewer crossing conflicts and more rear-end conflicts.

Key words: signal-coordinated arteries, traffic safety, microscopic traffic simulation, surrogate safety assessment model (SSAM), kernel regression

中图分类号:

X913.3

江欣国, 任瀚堃, 范英飞, 李想, 付川云. 信号协调控制干线交通安全仿真分析[J]. 中国安全科学学报, 2020, 30(3): 143-149.

JIANG Xinguo, REN Hankun, FAN Yingfei, LI Xiang, FU Chuanyun. Simulation analysis on traffic safety of signal-coordinated arteries[J]. China Safety Science Journal, 2020, 30(3): 143-149.

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信号协调控制干线交通安全仿真分析

Simulation analysis on traffic safety of signal-coordinated arteries

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