Assessment of Heterogeneous Traffic at Roundabout using VISSIM

Abstract

Traffic congestion is managed conventionally by signalisation, widening the roads, interchanges and
intersections. Multi- modal traffic augments the congestion at this intersection. The problem of traffic congestion
resolved by the methods on assumptions like Poisson –Distribution method, fixed critical gaps, Move –up times and
constant traffic volume that appeared to be unrealistic for heterogeneous traffic is alleviated by simulation using
VISSIM.
The study works for three main parameters: Capacity of Rotary Intersection, Heterogeneous traffic flow simulation using
VISSIM and suitable measures to be taken for reducing Traffic congestion and reconfigure the intersection. The
framework will comprise of collection of accident data to learn about the black spot, measurements of geometric
elements and its comparison with the standards of IRC: 65-1976 guidelines, also the public survey to have the idea of
prevailing conditions. Further setting forth possible alternatives and come up with best gratifying solution followed by
evaluation of traffic volume count and simulating it using VISSIM which will analyse and optimise the traffic flow.