Abstract:
In Bangladesh at Dhaka city from Mohakhali to Uttara road has been increased installation of non-traversable medians and directional median opening has produced an increased number of U-turns on multilane highways. Arguments have been advanced by some opponents of median modification projects that the increased numbers of U-turns may result in safety and operational problems on multilane highways. The primary objective of this study is to evaluate the operational effects of traffic movement on U-turn on multilane roadways.
To achieve this research objective, extensive data we have collected. Field measurements we have conducted at 4 locations in Mohakhali to Uttara road area of Dhaka city to collect traffic operations data. In this study we have used two methods which are online survey and field survey for data collection. This methods help us to understand what people think about this u turn and its benefits. After completing this study we have found that in some locations road users are satisfied of this u turn however others believe that there is no change or development of traffic performance after completing this u turn. For example in Uttara point people and drivers feel comfortable by using this u turn while at Banani point people are not comfortable using u turn due to congestion.
