交通运输系统工程与信息 ›› 2010, Vol. 10 ›› Issue (4): 86-92 .

• 系统工程理论与方法 • 上一篇    下一篇

基于自适应规则的择路演化研究

王谱;孙会君*   

  1. 北京交通大学 城市交通复杂系统理论与技术教育部重点实验室,北京 100044
  • 收稿日期:2009-12-28 修回日期:2010-03-11 出版日期:2010-08-25 发布日期:2010-08-25
  • 通讯作者: 孙会君
  • 作者简介:王谱(1985-),女,河北省宁晋县人,硕士生.
  • 基金资助:

    国家基础研究计划项目 (2006CB705500);北京市自然科学基金项目(8102029);霍英东青年教师基金(111083);国家自然科学基金 (70801005,70871009).

Route Choice Evolving Under Adaptive Rule

WANG Pu; SUN Hui-jun   

  1. MOE Key Laboratory for Urban Transportation Complex Systems Theory and Technology, Beijing Jiaotong University, Beijing 100044, China
  • Received:2009-12-28 Revised:2010-03-11 Online:2010-08-25 Published:2010-08-25
  • Contact: SUN Hui-jun

摘要: 从研究出行者个体出行的行为特性出发,研究其择路行为有重要的意义. 在自适应规则的基础上,考虑OD(Origin and Destination,简称OD)量服从一个概率分布(本文中假设服从正态分布)的情况下,研究出行者择路的演化. 结果表明,对于固定或随机的OD量,路径流量均能收敛. 并且,当OD量是随机变量时,如果均值一定,方差越大收敛速度越慢;如果方差一定,增大均值基本不会改变收敛速度,但对收敛前路径流量在演化过程中的波动幅度有较大的影响. 此外,还考虑了多种交通方式并存下的择路模型及演化. 演化结果表明,小汽车出行的不稳定性和自主性要比公交车出行高.

关键词: 城市交通, 自适应规则, 路径选择, 出行方式, 演化模拟

Abstract: The paper investigates the route choice flows by considering the characteristics of the individual travel’s behaviors Based on the adaptive rule the evolution of the route choice with variable OD demands is discussed. The results show that the flows of each route are convergent for both fixed and variable OD demands. For the fixed mean of the OD demands with the increase of the variance, the convergent speed becomes slower. Moreover, for the fixed variance, increasing the mean can not affect the convergent speed, but it may lead to more serious fluctuations of the route flow. In addition, by considering three traffic modes the paper presents a new route choice evolving model. The results show that the stability and autonomy of travel by car are higher than those of travel by bus.

Key words: urban traffic, adaptive rules, route choice, travel mode, simulation and evolution

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