Citation

Ravishankar KVR, Mathew TV. J. Transp. Eng. 2011; 137(11): 775-781.

Copyright

(Copyright © 2011, American Society of Civil Engineers)

DOI

10.1061/(ASCE)TE.1943-5436.0000273

PMID

unavailable

Abstract

Car-following behavior forms the kernel of traffic microsimulation models and is extensively studied for similar vehicle types. However, in heterogeneous traffic having a diverse mix of vehicles, following behavior also depends on the type of both the leader and following vehicles. This paper is an attempt to modify the widely used Gipps's car-following model to incorporate vehicle-type dependent parameters. Performance of the model is studied at microscopic and macroscopic levels using data collected from both homogeneous and heterogeneous traffic conditions. The results indicate that the proposed modifications enhance the prediction of follower behavior and suggest the need of incorporating vehicle-type combination specific parameters into traffic simulation models.

Language: en