A Comparative Study on Traffic Volume and Temporal Variation of Different Types of Vehicles in Mohakhali, Khilgaon and Jatrabari Flyover

Bangladesh is a developing country with huge population. As the country has excessive population, we have shortage of land for accommodation and transportation. We don’t have sufficient roadway for several vehicles and the existing roads are quite narrow to maintain a huge amount of vehicles. The government has planned to build new flyovers with an aim to increase mobility and facilitate the city habitants with a reliable transport network free from the perennial traffic congestion in Dhaka as well as others busiest cities of the country. The transportation specialist think that flyovers are able to save the cities from several transport problems. Seven flyovers have been constructed in the capital of Bangladesh. The three major flyovers in Dhaka city are- Mohakhali, Khilgaon and Jatrabari-Gulistan flyover. After constructing these three flyovers, the habitants of the city are facing less transportation problems as compared to past days. Several surveys and analysis were performed to achieve the temporal variation (weekday-day; weekday-night ; weekend-day and weekend-night ) to access how far the objectives have been met through the construction of these flyovers. From the assessment of traffic flow Mohakhali Flyover is the most useful flyover as compared to Khilgaon and Jatrabari flyover. In this flyover almost 36.396 % of vehicles passing above grade among all vehicles at grade and above grade on weekdays and 62.67% of vehicles passing above grade among at grade and above grade on weekend. Jatrabari Flyover performed too much close which almost 28.269 % of vehicles passed above grade among all vehicles at grade and above grade at weekdays and 50.64% of vehicles passing above grade among at grade and above grade at weekend. However, Khilgaon flyover performed very poorly and it is used by small amount of vehicles. Overall analysis has revelated the traffic volume in the above of these Flyover and determined the temporal variation of different types of vehicles. In Mohakhali flyover the highest flow of Vehicles are for microbus/car/jeep which is around (62 to 50) % both weekdays and weekends. In khilgaon flyover highest flow of vehicles are for motorcycle which is around (48 to 30) % both weekdays and weekend. Jatrabari flyover shows in weekend highest flow of Vehicles are for Motorcycle which is around 32% but in weekdays car\jeep are dominating. According to study, firstly the amount of private transports (car, bicycle) are much higher than public transport. Secondly, it has been shown that there are some discrepancies in performances between the flyovers and the roads. The factors are low maintenance service, footpaths are controlled by hawker on road and illegal car parking, sound pollution etc. are most abusive problems in the access road of this flyover. We believe the result from this research will be helpful in understand the traffic volume in those flyover location and it can be helpful for further studies in relevant topic.