Abstract:
There are both motorized and non-powered vehicles in Bangladesh traffic. In the absence of lane rules and unrestrained mixing of different types of vehicles, the character of the traffic stream becomes heterogeneous. In addition, formulae for forecasting traffic delays and optimizing signal timing, which includes predicting several factors, do not account for non-lane-based traffic circumstances. Although various methods exist for estimating the delays at junction approaches, relatively little study has been undertaken to evaluate their consistency. This research proposes a dependable strategy for estimating Bangladesh's real field delay. At Dhaka city junctions, traffic data were gathered for the purpose of the study. Four video cameras were utilized to collect field data, and the information necessary for the delay estimate was acquired. The research suggests that the theoretical incremental delay (due to random arrival and oversaturated queues) in the HCM 2000 delay model be modified to reflect the field conditions more accurately. The existing delay model exhibits a strong connection with the current example but requires more refinement to be applicable to the whole range of input variables.
