基于预算时间的路径选择模型参照点设定方法  

Reference point setting method in route choice model based on travel time budget

作　　者：黄中祥[1] 王任映[1] 况爱武[1] 

机构地区：[1]长沙理工大学交通运输工程学院,湖南长沙410004

出　　处：《交通科学与工程》2009年第3期75-79,共5页Journal of Transport Science and Engineering

基　　金：国家自然科学基金资助项目(50578019)

摘　　要：针对路径选择模型的特点,基于前景理论分析了实际路网中出行者在不同得失状况下的选择行动,进而重点分析了模型中参照点的设定方法.从传统参照点设置方法入手,针对其自由流时间不适用于拥挤路网的弊端,通过结合出行时间预算和有效路径的相关理论,提出了一种更加符合实际的路径选择模型参照点设定方法.算例演算表明,提出的参照点设定方法能有效地反映路网出行者的实际出行行为,特别是在出行者对出行时间要求越严格的情况下,改进方法的优势越明显.In this paper, it focused on the characteristics of route choioe model. Based on the prospect theory, the travelers＇ different choices have been analyzed in different gains and losses circumstances of actual road network, and the reference point setting method has been predomi- nantly focused on. Starting from the traditional reference point setting method, in order to re- solve the drawbacks that free flow travel time does not apply to network congestion, a more real- istic model for reference point setting in route choice model has been suggested by taking use of travel time budget and effective route theory. It shows from the calculating example that the ref- erence point setting method proposed in this paper can effectively reflect the actual choice be- havior of road network user. Particularly, the more stringent requirements on the travel time, the more pronounced the advantages of improved methods become.

关 键 词：前景理论 路径选择 参照点 时间预算 有效路径 

分 类 号：U491[交通运输工程—交通运输规划与管理]