A Traffic Volume Study for Efficient Roundabout Planning

Abstract

Roundabouts are intersections of two or more roads with one-way circulating streets that give oncoming traffic priority. Traffic signs control the approaching traffic, which is only allowed to turn left onto the circulating headway. Upon approaching the yield line, the driver must only decide whether there is enough room for them to enter the gap in the moving traffic. The vehicles then effortlessly turn left and leave the circulating route to travel to their final destination. Signal-controlled intersections cause traffic to build up on both sides of the road, whereas roundabout-controlled intersections allow for a smooth flow of vehicles per hour. Due to stops and collisions, traffic signals cause traffic to build up on either side of the signal, causing basic wear and tear. Additionally, fuel is wasted while waiting for the light to turn green. In this paper, the planning of roundabouts will be briefly discussed at Teenbatti junction using the traffic volume study as per IRC recommendations and suggest the necessary measures that needed to be taken immediately to avoid the issue of queuing at Walkeshwar Road due to turning movement of vehicles from Malabar hill to Grant road. The main objective of the study is to address the issue of traffic congestion and queuing at Teenbatti junction by introducing roundabout. It has been concluded that the installation of roundabout and the measures discussed to counteract the various traffic related issues minimizes the traffic congestion as it avails free flow in circular motion to leave the rotary.