Published In: Conference: 3rd International Conference on Emerging Trends in Engineering, Management and Sciences

Abstract:

The natural trend of velocities towards densities is given by equilibrium velocity distribution. Greenshields laid the foundation of traffic flow studies and developed the first equilibrium velocity distribution model in which a linear relationship between velocity and density is considered. Following the Greenshields model, Greenberg presented a new equilibrium velocity distribution model, a logarithmic relationship between velocity and density is considered. Both the Greenshields and Greenberg models are widely used in traffic flow Modelling. In this paper a pragmatic approach has been adopted to check the validity of the Greenshields and Greenberg models for heterogeneous traffic flow. The simulation results shows the unrealistic behavior of both the models for heterogeneous traffic flow.