Route Choice Evolving Under Adaptive Rule

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.

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。