고속도로 O / D 자료를 이용한 Entropy 극대화모형의 통행저항계수 ( β ) 추정에 관한 연구

Abstract

This article presents a model and a procedure for determining impedance factors in Entropy maximization Models. The average travel time is explicitly taken into account in calibrating impedance factors. The impedance factor, which is crucial for predicting trip-distribution matrix, is not yet appropriately calibrated on highway network in Korea. Thus impedance factors are calibrated using O/D data collected by Korea Highway corporation (1995-1997). The parameters turn out to be the values between 0.0127 and 0.0210, meaning that trip distribution procedures become stabilized with these values. The results show that Entropy maximization Models are successfully applied to Korea Highway Network to derive impedance factors in trip distribution Models.