A Utility-Based Evaluation Method on the Perceived Quality of Traffic Service

This study aims to develop a model to estimate a microscopic driving environment from macroscopic traffic condition data, and to show a series of methodologies for estimating the quality of traffic service based on a driver's perception. The proposed method consists of three parts. The first part estimates the distributions of speed and headway from macroscopic data, and then the second part estimates the point-basis utility as a joint probability of speed and headway. The third part estimates the sectionbasis utility from the probability distribution of point-basis utility by using the empirical formula. A fairly good fitness of the proposed methods is demonstrated through a case study. © 2011 Published by Elsevier Ltd.