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《城市交通》杂志
2009年 第5期
基于模糊逻辑的路径选择模型
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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