西华大学学报（自然科学版）2017，Vol.36Issue(2)：61-67,7.DOI:10.3969/j.issn.1673-159X.2017.02.012
RP/SP数据的Nested Logit同构融合
A Method of RP/SP Data Combination for Isomorphic Nested Logit Sub-models
吾晨晨 1吴戈 1李春艳 2李先2
作者信息
- 1. 苏州大学城市轨道交通学院,江苏苏州215131
- 2. 北京交通发展研究中心,北京100161
- 折叠
摘要
Abstract
To accommodate the similarity between alternatives,the Nested Logit (NL) model is usually applied to construct submodels in RP/SP combined analysis.In previous literatures,however,RP and SP sub-models often adopt different hierarchical structures,which result in problems such as inconsistent comprehension for behavioral mechanisms,unclear corresponding relation between error-components and incorrectly description of the real hierarchical structure of SP data.This paper formulates a joint method,which considers hierarchical difference between error terms within a unified RP-NL/SP-NL framework and introduces fusion coefficients to rescale SP utility.Based on the survey data collected from new bus lanes on freeway in Beijing,three different RP-NL/SP-NL models,RP and SP independent NL model were estimated and compared.Taking into account the hierarchical relation between errors of RP and SP,the result implies that the proposed method can clearly reveal the choice process and hierarchical structure of SP data,reduce the impact of error terms and improve the explanatory power of variables to understand SP choice behavior better.关键词
交通工程/RP/SP数据融合/Nested Logit模型/测度系数/融合系数/同构Key words
traffic engineering/RP/SP data combination/Nested Logit model/scale parameter/fusion coefficient/isomorphic分类
交通工程引用本文复制引用
吾晨晨,吴戈,李春艳,李先..RP/SP数据的Nested Logit同构融合[J].西华大学学报（自然科学版）,2017,36(2):61-67,7.
