A STUDY ON LCC EVALUATION METHOD FOR PAVEMENTS IN ROAD NETWORK CONSIDERING DRIVERS' ROUTE CHOICES

Abstract

A method for evaluating LCC of pavements considering drivers’ route choice behaviors is proposed in this study. Extension of existing models, which can deal with one link or a few links, to new one that can deal with road network as a whole and drivers’ route choices, is carried out. LCC minimization problem is formulated as a bi-level problem in which two problems, i.e. LCC minimization as upper level problem, and user equilibrium assignment expressing drivers’ route choices as lower level problem, are included. A simple numerical example is also presented. This example shows the effect from traffic congestions brought by repair works on LCC which can not be considered in the existing models.