JCE_V4_N3_CS1 Nimbagal Abhinav A. Ramesh Kumar Molugaram Journal on Civil Engineering 2249 - 0779 4 3 33 42 Headways, Traffic, Gaps and Speeds Heterogeneous traffic flow conditions in India are affected by various traffic characteristics such as driver behavior and prevailing conditions of road geometrics etc. In the present paper, an attempt is made to study the headway behavior of different vehicular composition in the traffic stream. The average speeds were calculated using headways of various vehicle combinations. Headways were determined in traffic stream by video image recording. The video was divided into image frames and analyzed for calculation of headways. To understand heterogeneity, statistical tests have been performed. Longitudinal gaps and vehicle to vehicle distance are measured in AutoCAD. Traffic violations in the study area are studied from available videographic data. June - August 2014 Copyright © 2014 i-manager publications. All rights reserved. i-manager Publications http://www.imanagerpublications.com/Article.aspx?ArticleId=3024