Proposal of estimation classification of narrow road traffic volume

Abstract

In this study, narrow roads are divided into 13 classifications by their differences in investigation method, size of traffic volume / traffic density, and route type. The results of the estimation model are compared, in order to show the possibility to estimate the narrow street traffic volume by several classifications. As a result, the following points were clarified. In 600 units/h or less, the mesh traffic-density model of a thin road is suitable, because of a high coefficient of determination. In 600 units/h or more, the traffic-volume model of “600 units/h or more” is suitable. Appropriate estimation accuracy was obtained by the combination method (traffic-volume and mesh traffic-density models of a thin road). The obtained results showed that traffic volume of narrow roads could be estimated by taking different methods in two divisions with 600 units/h as the limit.