Empirical test of a constrained choice discrete model: Mode choice in São Paulo, Brazil

Joffre Swait and Moshe Ben-Akiva

Transportation Research Part B: Methodological, 1987, vol. 21, issue 2, 103-115

Abstract: This paper examines the properties and empirically tests a model of discrete choice which incorporates probabilistic choice set generation. Denominated the Parametrized Logit Captivity (PLC) model, it is a generalization of the well-known "dogit" specification. The PLC model is shown to be theoretically and empirically more flexible than the latter. Work mode choice data collected in a 1977 O/D survey in São Paulo, Brazil, is used to obtain parameter estimates, as well as to evaluate consumer reaction to a series of perturbations in travel time, travel cost and income, for both the PLC and Multinomial Logit models. Comparisons between the two specifications are made in terms of statistical fit, reasonableness of predictions and differences in predictions across models.

Date: 1987
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