Performance Assessment of Six Leg Rotary Intersection Capacity
Author : Mayuri A Barai, Dr. Arun V Parwate, Dr. PB Nagarnaik and Dr. DK Parbat
Abstract :
An Assessment of study was conducted at Six Leg rotary intersection (Medical Roundabout) in Nagpur City, Maharashtra state. (Medical Roundabout) experienced daily and frequent concurrent delay, accidents, queue built up at morning and evening peak hours. Traffic count was carried out at the roundabout to determine the movement of vehicle from the different approaches of the roundabout. The problems in delay, congestion, accident encountered were not resulted from inadequate capacity of the roundabout rather its due to high traffic flow from the intersecting legs. Traffic volume data (incoming and outgoing) from each approach road is evaluated. For this, data collection is carried out for a peak hour. During data extraction stage, traffic volume was extracted for all the different classes of vehicles considered and were converted to passenger car units (PCU). Using the calculated values of average entry width of the rotary and width & length of weaving section, the practical capacity of the rotary is estimated.
Keywords :
Roundabout, weaving capacity, traffic volume