Aplicação de um procedimento usando preferência declarada para a estimativa do valor do tempo de viagem de motoristas em uma escolha entre rotas rodoviárias pedagiadas e não pedagiadas. / Application of a procedure using stated preference for value of travel time estimation in a choice context involving tolled and non-tolled routes.

AUTOR(ES)

André Nozawa Brito

DATA DE PUBLICAÇÃO

2007

RESUMO

This dissertation is based on the application of an empirical procedure using stated preference techniques for the estimation of the value of travel time for drivers in regional trips, in the context of a choice between tolled and non-tolled routes. It first reviews the theoretical and the empirical approaches for the valuation of travel time and then presents the basic concepts of two other topics relevant for the methodology adopted: choice theory and stated preference methods. An application to a specific case study is then presented, using information from a stated preference survey conducted in 2005 with a large sample of car drivers intercepted at several points in the highway network of the state of São Paulo. The stated preference experimental design considered three attributes: trip time on a tolled route, value of toll and trip time on a non-tolled route. Survey data were analyzed and used for the estimation of discrete choice (multinomial logit) models; values of travel time were derived from estimates of coefficients of an additive linear in the parameters utility function. The specification of the models and the segmentation of the sample allowed the estimation of the variation of travel time according to some selected driver and trip characteristics. Results indicated, for the specific choice context analyzed, an average value of travel time of approximately R$16/h, varying from about R$12/h to R$23/h for different segments of travelers. Trip length was an important characteristic influencing the variation of the value of travel time, which declined as trip length increased. Other important effects were found for leisure trips, for travelers with low income and for those with high family car ownership.

ASSUNTO(S)

rodovias com pedágios route choice valor do tempo de viagem preferência declarada escolha de rotas stated preference value of travel time toll

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