Factors Impacting Serviceability of Bypass Road

Abstract

Abstract: Urban traffic congestion is one of the major problems of the developing countries. Growing volumes of through traffic are often attributed to traffic flow challenges. Bypass roads are constructed to reduce congestion in the city center. Bypass diverts through traffic away from town centers leaving local streets to local traffic. Often these bypasses are built to accommodate increasing volumes of traffic particularly truck traffic. The aim of this research is how to improve travel time on bypass roads and to study various traffic congestion management approaches in big cities. Traffic volume, travel time, vehicle specifications and geometric parameters were determined in the field as input for the microsimulation model. Different facilities were incorporated on bypass road to improve travel time. Calibration and validation of the model were done, and results of traffic volume and travel time were compared with actual field data. The results obtained shows that in most of the cases congestion was found near the intersections. The options of a flyover, bus bays, pedestrian overhead bridge and slip lines were assumed in the analysis; in result highest travel time decrease on bypass road due to provision of slip lines