Estimation of a Time Dependent OD Matrix from Traffic Counts Using Dynamic Traffic Simulation

Abstract

This study proposes and develops an OD (Origin-Destination) estimating method from traffic counts using dynamic traffic simulation. The proposed method intends to get an OD matrix which is required by dynamic traffic simulation so as to reproduce observed counts. After development, we evaluate how accurately it can estimatean OD matrixusing actual road network. In result, we confirm that the method cannot estimate exact OD matrix because it intends to get an OD matrix by which simulation can reproduce observed counts. However, we understand what a extent (a) accuracy of simulation performance, (b) number of observed counts and (c) other information effect the accuracy of estimated OD.