中国物理B ›› 2010, Vol. 19 ›› Issue (2): 20513-020513.doi: 10.1088/1674-1056/19/2/020513

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A new car-following model yielding log-normal type headways distributions

姜锐1, 李力2, 王法2, 胡坚明2, 吉岩2   

  1. (1)School of Engineering Science, University of Science and Technology of China, Hefei 230026, China; (2)Tsinghua National Laboratory for Information Science and Technology (TNList), Department of Automation, Tsinghua University, Beijing 100084, China
  • 收稿日期:2008-10-01 修回日期:2009-04-08 出版日期:2010-02-15 发布日期:2010-02-15
  • 基金资助:
    Project supported partly by the National Basic Research Program of China (Grant No.~2006CB705506), the National Hi-Tech Research and Development Program of China (Grant Nos.~2006AA11Z215 and 2007AA11Z222), and the National Natural Science Foundation of China (Grant Nos.~50708055, 60774034 and 10872194).

A new car-following model yielding log-normal type headways distributions

Li Li(李力)a),Wang Fa(王法)a), Jiang Rui(姜锐)b),Hu Jian-Ming(胡坚明)a), and Ji Yan(吉岩)a)   

  1. a Tsinghua National Laboratory for Information Science and Technology (TNList), Department of Automation, Tsinghua University, Beijing 100084, China; b School of Engineering Science, University of Science and Technology of China, Hefei 230026, China
  • Received:2008-10-01 Revised:2009-04-08 Online:2010-02-15 Published:2010-02-15
  • Supported by:
    Project supported partly by the National Basic Research Program of China (Grant No.~2006CB705506), the National Hi-Tech Research and Development Program of China (Grant Nos.~2006AA11Z215 and 2007AA11Z222), and the National Natural Science Foundation of China (Grant Nos.~50708055, 60774034 and 10872194).

摘要: Modeling time headways between vehicles has attracted increasing interest in the traffic flow research field recently, because the corresponding statistics help to reveal the intrinsic interactions governing the vehicle dynamics. However, most previous micro-simulation models cannot yield the observed log-normal distributed headways. This paper designs a new car-following model inspired by the Galton board to reproduce the observed time-headway distributions as well as the complex traffic phenomena. The consistency between the empirical data and the simulation results indicates that this new car-following model provides a reasonable description of the car-following behaviours.

Abstract: Modeling time headways between vehicles has attracted increasing interest in the traffic flow research field recently, because the corresponding statistics help to reveal the intrinsic interactions governing the vehicle dynamics. However, most previous micro-simulation models cannot yield the observed log-normal distributed headways. This paper designs a new car-following model inspired by the Galton board to reproduce the observed time-headway distributions as well as the complex traffic phenomena. The consistency between the empirical data and the simulation results indicates that this new car-following model provides a reasonable description of the car-following behaviours.

Key words: traffic flow, car-following, log-normal distribution

中图分类号:  (Land transportation)

  • 89.40.Bb
45.70.Vn (Granular models of complex systems; traffic flow) 02.50.Ng (Distribution theory and Monte Carlo studies)