Abstract
Origin-Destination (OD) table is necessary to run microscopic traffic simulation but it is not observed directly. Therefore, we must estimate OD flow from observable information. It is a kind of the inverse problem. In this paper we present the iterative method to estimate OD flow by using link flow data derived from traffic censuses and some features of the method is checked by the simulation in simple road maps. Additionally, we modeled simplified traffic phenomena as a linear model for further studies. This model is based on superposition principle of traffic volume created from each OD flow and it may decrease calculation cost when counted to the iterative method.
