Modelling Travel Speed along Japanese Highways/Streets for Planning Stage Application

Abstract

Accurate estimation of travel speed along a transport facility is necessary in order to ensure that the facilities meet the required performance. In this paper, the performance of the Highway Capacity Manual travel speed model is checked for Japanese roads. Then, a travel speed estimation model is developed from data collected along a road section in Hamamatsu City, Japan. The model provides an estimate of the average travel speed along a road section by inputting demand flow rates, section length, number of signalised intersections, signalised intersection density, and the number of access points along the road in the travel direction. It is found that the travel speed slightly increases with increased section length, and decreases with increased access points and higher number and density of signalised intersections.