On the (im-)possibility of deriving transport policy implications from hybrid choice models

被引:124
作者
Chorus, Caspar G. [1 ]
Kroesen, Maarten [1 ]
机构
[1] Delft Univ Technol, Transport & Logist Grp, NL-2628 BX Delft, Netherlands
关键词
Hybrid choice model; Integrated latent variable discrete choice model; Attitudes; Perceptions; Causality; Endogeneity; RANDOM UTILITY; BEHAVIOR; PERCEPTIONS; ATTITUDES;
D O I
10.1016/j.tranpol.2014.09.001
中图分类号
F [经济];
学科分类号
02 ;
摘要
This paper focuses on hybrid choice models of the type increasingly being used by travel demand modelers, which include latent perception and attitude related variables. We argue that, contrary to current practice, these models do not support the derivation of policies that aim to change travel behavior by means of changing the value of a latent variable. An example of such a policy is a marketing campaign which aims to influence the latent variable 'perceived quality of public transport', and as a consequence mode choice behavior. We argue that this lack of support is due to the combination of two factors: (i) the latent variable is usually to a non-trivial extent endogenous to the travel choice, precluding inference of causality; and (ii) the data are almost without exception cross-sectional as far as the latent variable is concerned, and as such do not allow for claims concerning changes in the variable at the individual level. When data for the latent variables are cross-sectional, and to the extent that endogeneity of the latent variables cannot be ruled out, these variables should best not be used as targets for travel demand management policies although they may still be used as input for scenario studies that involve changes in the population over time. (C) 2014 Elsevier Ltd. All rights reserved.
引用
收藏
页码:217 / 222
页数:6
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