铁路出发旅客衔接方式选择的复合异质性模型

鉴于多属性决策中存在的属性偏好和处理两类异质性现象，以铁路出发旅客衔接方式选择问题为对象，对两类异质性的效用表达进行了讨论，构建了能同时描述旅客属性偏好和处理异质性的复合异质性(Hybrid)非集计模型.采用成都东客站SP调查数据进行模型标定，结果表明，Hybrid模型的拟合度优于单一异质性模型.旅客属性处理规则自述结果与Hybrid模型分类结果的对比分析表明，模型对旅客属性处理特征的表达准确.进一步对不同类型旅客属性标定结果的分析显示，Hybrid模型可实现对衔接方式选择行为的精细化描述.

Hybrid Heterogeneity Model for Access Mode Choice of Railway Departure Passengers

This paper focuses on the access mode choice of railway departure passengers on account of the phenomenon of attribute preference and attribute process heterogeneity in multi-attributes decisions. The expressions of attribute preference and attribute process heterogeneity in utility function are analyzed and a hybrid heterogeneity Logit model is formulated. Stated preference data for departure passengers of Chengdu east railway station are utilized in model estimations, and the results indicate that the model fit of the hybrid model is better than that of mono heterogeneity models. Comparisons between the self-statement shares of attribute process heterogeneity and estimation results of model class probabilities show the goodness of calibrations that hybrid model has in attribute process heterogeneity. Moreover, the analysis of parameter estimation results in hybrid model also show its sophistication in calibrations of passengers’access mode choice behaviors.