文章编号：1672-5328（2009）05-0091-05

胡春斌1，安　实2，王　健2
（1.中国城市规划设计研究院，北京 100037；2.哈尔滨工业大学交通科学与工程学院，黑龙江 哈尔滨 150090）

摘要：为有效解决路径选择行为中的不确定性问题，采用模糊逻辑方法建立路径选择模型。用三角模糊数描述路径行驶时间，并建立一定的模糊规则，然后，用近似推理方法两两对比可选路径，在对比矩阵基础上计算各条路径的权重，即路径被选择的概率。最后，对路径选择模型进行算例应用，验证了模型的有效性。

关键词：交通规划；路径选择；模糊逻辑；近似推理

中图分类号：U491.1+23

文献标识码：A

A Route Selection Model Based on Fuzzy Logic

HU Chun-bin1, AN Shi2, WANG Jian2
(1.China Academy of Urban Planning &Design, Beijing 100037, China; 2.School of Transportation Science and Engineering, Harbin Institute of Technology, Harbin Heilongjiang 150090, China)

Abstract：In order to effectively address uncertainties in route selection behaviors, this paper establishes a route selection model using a fuzzy logic approach. Firstly, the paper defines travel time in terms of triangular fuzzy numbers, and introduces corresponding fuzzy rules. Given these fuzzy rules, a pair of available routes are compared with each other by a heuristic approximation, yielding the probability to select a route based on the weighting of each route resulted from the comparison matrices. A numerical example is included to illustrate the application of the route selection model.

Keywords：transportation planning; route selection; fuzzy logic; heuristic approximation