Determinação da importância relativa dos principais atributos relevantes na decisão de conversão de veículos leves para gás natural veicular (gnv): o caso dos taxistas da cidade de Fortaleza

Abstract

This paper presents a study aiming to help the decision making process related to the expansion of the urban car fleet moved with the natural gas fuel. It consists in determining the relative importance of the most relevants attributes to taxi drivers in Fortaleza city, situated in northeastern Brazil, when they decide to convert their vehicles to that fuel. It were used data collected using Stated Preference Techniques. The coefficients of the chosen attributes of the utility function were estimated using the Multinomial Logit Model. The relative weights of the attributes has been determined and discussed to give some insights on necessary policies to expand the consume of the natural gas fuel. An extended exercise was made aiming to determine the probability of choice of the fuels alcohol, gasoline and natural gas in the study sample producing different figures from those actually meet in the study area.