期刊
TRANSPORTATION RESEARCH PART B-METHODOLOGICAL
卷 36, 期 7, 页码 593-616出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/S0191-2615(01)00020-0
关键词
revealed preference; stated preference; mixed logit; quasi-Monte Carlo simulation; state-dependence; unobserved heterogeneity; congestion pricing
This paper formulates and applies a unified mixed-logit framework for joint analysis of revealed and stated preference data that accommodates a flexible competition pattern across alternatives, scale difference in the revealed and stated choice contexts, heterogeneity across individuals in the intrinsic preferences for alternatives, heterogeneity across individuals in the responsiveness to level-of-service factors, state-dependence of the stated choices on the revealed choice, and heterogeneity across individuals in the state-dependence effect. The estimation of the mixed logit formulation is achieved using simulation techniques that employ quasi-random Monte Carlo draws. The formulation is applied to examine the travel behavior responses of San Francisco Bay Bridge users to changes in travel conditions. The data for the study are drawn from surveys conducted as part or the 1996 San Francisco Bay Area Travel Study. The results of the mixed logit formulation are compared with those of more restrictive structures on the basis of parameter estimates, implied trade-offs among level-of-service attributes, heterogeneity and state-dependence effects, data Fit, and substantive implications of congestion pricing policy simulations. (C) 2002 Elsevier Science Ltd. All rights reserved.
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