基于时间和路径偏好的交通流分配模型与诱导策略

考虑交通网络中出行者不仅具有路径选择偏好, 同时具有时间偏好的特征, 分别针对出行者是否具有时间或路径选择偏好的4种不 同情形, 建立相应的交通流分配模型. 通过分析这4个模型的性质, 分别给出了有效的求解方法. 在分析4种不同情形 下出行者总出行时间的相互关系基础上, 设计了时间诱导和路径诱导策略. 最后, 以西安市东南郊清明假日交通流分 配为例, 分别模拟分析了不进行诱导, 进行时间诱导, 进行路径诱导的情形下高峰期的交通流分配, 该实例验证了时 间诱导策略与路径诱导策略的有效性.

Traffic flow distribution models based on time and path preference and inducement strategy

Considering whether the travelers have path preference or time preference,we establish four traffic distribution models in four different situations.Through analyzing the characters of these four models,we present the methods to solve these models.Then we study the relationship among the total travel time in these four situations,and derive the time inducement strategy and the path inducement strategy.Taking the traffic flow in Xi’an at Tomb-sweeping Day as an example,we simulate and analyze the traffic distribution in three situations.And this example indicates that the time inducement strategy and the path inducement strategy are valid.