Traffic Speed-Flow Characteristics of a Busy Dhaka Metropolitan Area Corridor

Abstract

The Present Vehicle Spot Speed Study concentrates on measuring the speed characteristics at predetermined area under the natural conditions. The present spot speed studies are coordinated to assess the movement of rates of vehicles in a surge of activity at a particular region on a roadway. The proposed look into work goes from breaking down the modular speed of vehicles, highway outline component, upper and lower speed restrain for regulation, planning and analysis, traffic operation, control and direction. The range, time and conditions of the study may be coordinated by its objective and expansion. In this report, we conducted a speed study on the road between Panthapath Signal and Russell square. Manual method was used due to lack of funds and simplicity of operation. For travel speed, matching registration plate method was used. Maximum vehicle speed was found to vary between 15-20 kmph in Russell Square to Panthapath direction and 30-35 kmph in Panthapath to Russell Square. 50% of the observed vehicles were light vehicles. Various spot speed measures were obtained, which showed that free flow condition was not present on the corridor. The frequency distribution curves in each direction were nearly symmetric along axis. Space mean speed was found to be less than Time mean speed. The Wardrop relationship was established and evaluated. Level of Service was found to be LOS F. Yearly cost in delay was found to be 33385971 BDT, which is a loss incurred on the country’s budget. Thus, a lane expansion project was evaluated to be beneficial for a 20-year design period. Furthermore, various other protective and control measures were recommended for betterment of the speed characteristics of the vehicles on the road. Limitations of the studies were present; however, future studies are recommended to use high resource means for more accurate results.