The impact of truck access restriction on toll road traffic performance

Department of Civil Engineering, Universitas Indonesia, Depok, Indonesia

^* Corresponding author: helentambun@hotmail.com

Abstract

The freight vehicle access restriction policy in 2011 has had an impact on the performance of the Jakarta Intra Urban Toll way (JIUT) system. Though most of the truck operators are not in favour of this policy, truck restriction has become common strategy to reduce congestion in many cities in the world. The purpose of this study is to analyse the impact of the existence of trucks in the traffic stream on the JIUT system. The analysis will show the impact of access restriction on the toll road performance from a macroscopic point of view, which is represented by the speed - flow - density model. The model will be calibrated by the data of 24-hour observation in a certain segment of JIUT. The model when the trucks are prohibited to use in that condition will be compared to the one when the trucks are allowed to travel. The difference between both models will indicate the impact of the policy. The comparison between both conditions shows a 28.17% better speed performance based on free flow speed and 28.17% higher efficiency at maximum flow rate. This study will benefit the toll operator as well as local transport authority in making decisions on similar policy in order to gain a more optimal advantage of the implementation.