Abstract:
Bangladesh is a developing country containing heterogeneous traffic, which is characterized by wide variations in traffic characteristics. The new technologies offer the greatest challenge and hope for improving the quality of traffic system. The ability to apply traffic flow fundamentals is an essential ingredient in working toward improving the transportation system. The present study is concerned with traffic flow characteristics observed on 2-lane divided carriageway. The objective of the study was to analyze traffic flow, density, and speed and space mean speed. Traffic flow fundamental diagrams are used to characterize the relationship between these parameters. Study of traffic flow involves selection of location, photographic survey analysis statistical analysis and calculation of basic parameters of traffic flow. Data extracted are compiled for each direction. Scatter diagrams flow-density, space mean speed-flow, speed-density were plotted for both direction. Explanations of all diagrams were given with and there were some limitation. Flow-density relationships in these routes were found similar of the fundamental diagram of traffic flow from the plotted diagrams. As these routes become very congested in the peak hours this research will help to find out the way to overcome the congestion during peak hours.
