A STUDY ON FLOW-DENSITY RELATIONSHIP AT KAKRAIL TO MOGHBAZAR ROUTE (BOTH DIRECTION)

Abstract

Deficiencies in present roadway network of Dhaka city have reached to such an alarming state where scopes of traffic improvement are getting confined day by day. Weak infrastructure has provoked heterogeneous mixing of vehicle along with non-lane based movement and no access control. Due to lack of proper implementation of transport planning and effective management, streets of Dhaka have become over numbered with vehicles and remain motionless for hours in both peak and off-peak periods. Identification of inherent weakness of interrupted traffic flow like total number of interruptions during a vehicle trip is prerequisite to confirm the smooth flow of vehicles and minimize the undesirable time killing of road users. The traffic system in the capital has gone back to its previous condition with the presence of illegal and unfit vehicles, picking and dropping passengers in the middle of road. The present study is concerned with traffic flow characteristic observed on Kakrail to Moghbazar both route Carriageway. In this study offers an explanation of the relationship between speed, density, flow and travel time models for uninterrupted and interrupted traffic flows. There was a lot of vehicles on the road during peak hour. But there was not much crowd on the road except peak hour during Corona (COVID19) pandemic situation. The roads of area was horizontal (flat) and geometrically straight and there had very little pedestrian. During study there was a huge traffic jam in study area. Data was taken total 200 vehicles for both direction. The total time was required 11.413 minutes during morning peak hour and other direction data was 11.113 minutes. Data was taken 14 September 2020 at peak hour in morning 9.00 am and another data was taken 5.00 pm. Data was collected at different times for the reason speed value are so much difference. The morning peak hour time the maximum flow occurred and the speed was 19.5 mph, on the other hand the evening peak hour time the maximum flow occurred and the speed was 20.25 mph.