Incorporating Observed and Unobserved Heterogeneity in Urban Work Travel Mode Choice Modeling

  • Authors:
  • Chandra R. Bhat

  • Affiliations:
  • -

  • Venue:
  • Transportation Science
  • Year:
  • 2000

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Abstract

An individual's intrinsic mode preference and responsiveness to level-of-service variables affects her or his travel mode choice for a trip. The mode preference and responsiveness will, in general, vary across individuals based on observed (to an analyst) and unobserved (to an analyst) individual characteristics. The current paper formulates a multinomial logit-based model of travel mode choice that accommodates variations in mode preferences and responsiveness to level-of-service due to both observed and unobserved individual characteristics. The model parameters are estimated using a maximum simulated log-likelihood approach. The model is applied to examine urban work travel mode choice in a multiday sample of workers from the San Francisco Bay area.