A Multiple Discrete-Continuous Nested Extreme Value (MDCNEV) Model: Formulation and Application to Non-worker Activity Time-Use and Timing Behavior on Weekdays

This paper formulates a multiple discrete-continuous nested extreme value (MDCNEV) model that relaxes the independently distributed error terms assumption of the multiple discrete-continuous extreme value (MDCEV) model proposed by Bhat (2005 and 2008). The MDCNEV model captures inter-alternative correlations among alternatives in mutually exclusive subsets (or nests) of the choice set, while maintaining the closed-form of probability expressions for any (and all) consumption pattern(s). The MDCNEV model is applied to analyze non-worker out of home discretionary activity time-use and activity timing decisions on weekdays using data from the 2000 San Francisco Bay Area data. The model estimation results provide several insights into the determinants of non-workers’ activity time-use and timing decisions. The MDCNEV model performs better than the MDCEV model in terms of goodness of fit. However, the nesting parameters are very close to 1, indicating low levels of correlation. Nonetheless, even with such low correlation levels, empirical policy simulations indicate non-negligible differences in policy predictions and substitution patterns exhibited by the two models. Experiments conducted using simulated data also corroborate this result.

Language

  • English

Media Info

  • Media Type: DVD
  • Features: Appendices; References; Tables;
  • Pagination: 30p
  • Monograph Title: TRB 89th Annual Meeting Compendium of Papers DVD

Subject/Index Terms

Filing Info

  • Accession Number: 01155138
  • Record Type: Publication
  • Report/Paper Numbers: 10-1399
  • Files: TRIS, TRB
  • Created Date: Jan 25 2010 10:38AM