A Comparative Analysis of Roundabouts and Signalizing Intersections in Rourkela City

Abstract

At grade intersection are one of the vital element in any road network. At grade intersections like Roundabouts take part a remarkable role in the level of delay experienced by vehicles on the road network. Roundabout control and traffic signals are the most common type of at grade intersection control. The aim of this research is to propose the changing of roundabout intersections into the signalizing intersection in the Rourkela city by using VISUM macro simulation software. The empirical work considered five major roundabouts in Rourkela city on outer ring road that is operated under different traffic congestion levels and different traffic distribution percentage. Various parameters like the level of service, effective size, cost, safety, operations, etc. were compared in this study. This study indicated that roundabouts suggested for low traffic volume while traffic signals are proven to be more suitable for large traffic volumes. In this study, the results showed that in Rourkela city the roundabouts should be upgraded to signalized intersection.