Journal of South China University of Technology (Natural Science Edition) ›› 2011, Vol. 39 ›› Issue (10): 96-99,131.doi: 10.3969/j.issn.1000-565X.2011.10.017

• Traffic & Transportation Engineering • Previous Articles     Next Articles

An Improved Car-Following Dynamic Model

Cao Bao-gui  Yang Zhao-sheng   

  1. College of Traffic∥State Key Laboratory of Automotive Simulation and Control,Jilin University,Changchun 130025,Jilin,China
  • Received:2011-01-14 Revised:2011-06-16 Online:2011-10-25 Published:2011-09-01
  • Contact: 曹宝贵(1976-) ，男，讲师，博士后，主要从事智能交通系统与交通流理论研究． E-mail:caobg@jlu.edu.cn
  • About author:曹宝贵(1976-) ，男，讲师，博士后，主要从事智能交通系统与交通流理论研究．
  • Supported by:

    国家自然科学基金资助项目( 61104168) ; 国家"863”计划项目( 2009AA11Z208)

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Abstract:

In order to overcome the shortcomings of current car-following models,a novel optimal velocity ( desired velocity) function is proposed and an improved car-following dynamic model is established based on the“stimulusresponse” pattern. Then,the stability of this model is analyzed by using the Lyapunov stability theory on motion. Finally,the parameter calibration and application verification of the improved model are performed by using the
measured data. The results show that the theoretical results of the improved model accord well with the experimental data in terms of starting acceleration,approximately uniform speed and deceleration,without unrealistic acceleration which occurs in other models.

Key words: car-following model, desired velocity, driving behavior, traffic flow

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