The Role of Tangible Attributes in Hybrid Discrete Choice Models

This paper will present the fact that not all the objective characteristics of alternatives affect decisions directly in a choice model. Some of them affect individual decisions through changes in the valuation of immeasurable alternative attributes, which are usually represented as latent variables. Traditionally, these characteristics have not been taken into consideration and the latent variables are usually explained only by the socioeconomic characteristics of the individuals. In this paper, using a synthetic databank, the authors analyze the impact of including or omitting some of these variables, as well as the impact of different specifications of the models to consider these characteristics. Understanding the choice of transport mode is a key element in travel demand modeling. In most applications, only tangible and objective modal attributes are used as explanatory variables. However, attitudes and perceptions may also influence the users’ decision process. In the last decades, the literature has reported different attempts to include the effect of both traditional variables, such as time and cost, and psychometric and non-measurable (or latent) variables in choice models.

Language

  • English

Media Info

  • Media Type: Web
  • Features: Figures; References; Tables;
  • Pagination: 13p
  • Monograph Title: European Transport Conference, 2010 Proceedings

Subject/Index Terms

Filing Info

  • Accession Number: 01352567
  • Record Type: Publication
  • Files: TRIS
  • Created Date: Sep 21 2011 2:16PM