Traffic Congestion Analysis Using Indo-HCM, IRC Method and Modelling of Data Using Q-GIS

Abstract

The biggest problem in the growing urban areas is the traffic congestion. It is due to the increasing in population and vehicle. This will breakdowns the traffic flow rate, reduces the speed of the vehicle and increases the congestion at intersections. This intern results in excess delay and reduces the safety. It has become the main reason for increasing in the transportation costs and ultimately results wastage of fuel. This problem really needs a solution and transportation system needs to be maintained properly. This project is to study the level of congestion in unsignalized T-intersection using Indo- HCM and IRC methods. Analysis is carried in different ways mainly by collecting traffic and geometric data selected intersection. Geometric data includes the road network of the intersection along with the directions of the traffic, approach width availability of free left turn and availability of bus bays. Traffic data includes passenger’s car units (PCUs), peak one- hour traffic volume, number of buses stopping at intersection etc., analysis is done using appropriate IRC codes (IRC SP:41- 1994, IRC: 65-1976) and Indo-HCM. Then LOS of different movements in intersection are determined the movement which get LOS F is needs to improve or upgrade. For this intersection, the conflict point is blocked, a U-turn is suggested, and the parking area should be shifted to a convenient location. This solution is represented in Q-GIS.