中国物理B ›› 2017, Vol. 26 ›› Issue (10): 108901-108901.doi: 10.1088/1674-1056/26/10/108901

• INTERDISCIPLINARY PHYSICS AND RELATED AREAS OF SCIENCE AND TECHNOLOGY • 上一篇    下一篇

Effects of rainy weather on traffic accidents of a freeway using cellular automata model

Ming-Bao Pang(庞明宝), Bo-Ning Ren(任泊宁)   

  1. School of Civil and Transportation, Hebei University of Technology, Tianjin 300401, China
  • 收稿日期:2017-04-20 修回日期:2017-06-14 出版日期:2017-10-05 发布日期:2017-10-05
  • 通讯作者: Ming-Bao Pang, Bo-Ning Ren E-mail:pmbpgy@hebut.edu.cn;rbn0525@163.com
  • 基金资助:

    Project supported by the National Natural Science Foundation of China (Grant No. 50478088) and the Natural Science Foundation of Hebei Province, China (Grant No. E2015202266).

Effects of rainy weather on traffic accidents of a freeway using cellular automata model

Ming-Bao Pang(庞明宝), Bo-Ning Ren(任泊宁)   

  1. School of Civil and Transportation, Hebei University of Technology, Tianjin 300401, China
  • Received:2017-04-20 Revised:2017-06-14 Online:2017-10-05 Published:2017-10-05
  • Contact: Ming-Bao Pang, Bo-Ning Ren E-mail:pmbpgy@hebut.edu.cn;rbn0525@163.com
  • Supported by:

    Project supported by the National Natural Science Foundation of China (Grant No. 50478088) and the Natural Science Foundation of Hebei Province, China (Grant No. E2015202266).

摘要:

The aim of this work is to investigate the influence of rainy weather on traffic accidents of a freeway. The micro-scale driving behaviors in rainy weather and possible vehicle rear-end and sideslip accidents are analyzed. An improved CA model of two lanes one-way freeway is presented, where some vehicle accidents will occur when the necessary conditions are simultaneously satisfied. The characteristics of traffic flow under different rainfall intensities are discussed and the accident probabilities are analyzed via the simulation experiments by using variable speed limit (VSL) and incoming flow control. The results indicate that the measures are effective especially during heavy rainstorms or short-time heavy rainfall. According to different rainfall intensities, an appropriate strategy should be adopted in order to reduce the probability of vehicle accidents and enhance traffic flux as well.

关键词: cellular automata (CA) model, freeway, rainy weather, rear-end, sideslip

Abstract:

The aim of this work is to investigate the influence of rainy weather on traffic accidents of a freeway. The micro-scale driving behaviors in rainy weather and possible vehicle rear-end and sideslip accidents are analyzed. An improved CA model of two lanes one-way freeway is presented, where some vehicle accidents will occur when the necessary conditions are simultaneously satisfied. The characteristics of traffic flow under different rainfall intensities are discussed and the accident probabilities are analyzed via the simulation experiments by using variable speed limit (VSL) and incoming flow control. The results indicate that the measures are effective especially during heavy rainstorms or short-time heavy rainfall. According to different rainfall intensities, an appropriate strategy should be adopted in order to reduce the probability of vehicle accidents and enhance traffic flux as well.

Key words: cellular automata (CA) model, freeway, rainy weather, rear-end, sideslip

中图分类号:  (Land transportation)

  • 89.40.Bb
02.60.-x (Numerical approximation and analysis)