A Study of Dynamic Traffic Assignment Using Statistical Method for Urban Scenario

Abstract

Rapid urban growth leads to a rise in demand for transport and private automobiles in urban regions. The current methods have failed in the current situations to meet the requirements leading to congestion, vehicle pollution and accidents. Vehicular congestion is a major problem in urban road networks. With traffic congestion on roads, the delay to the road users has been increased and the road networks reliability is decreasing. Before decade, four-stage modelling was used as transportation planning tool to evaluate transportation facilities on the system of transportation. But this kind of planning is not sufficient or not applicable to cover the dynamic properties for now existing situations and conditions. Hence, there is a need for new dynamic technique to be applied for the present condition of congestions. The major theme of this dynamic traffic assignment (DTA) is to control the traffic situations in networks through real-time measurement, communication and control. Dynamic traffic assignment was studied for more than four decades and many of the research works are been conducted but there is a lack in dynamic traffic assignment techniques research relating to Indian scenario especially for urban road networks. In this research, the survey is done through a questionnaire which is given to the VNR VJIET College of Engineering students to record their origin, destination, travel time and mode of transport. The origin is taken as JNTUH as all the trips are moving over JNTUH to reach the destination, there are two routes, i.e. one is along with Pragathi Nagar and another is along Nizampet route. The origin, destination, travel times and distance parameters are considered for the study. Travel times and the corresponding volume on the selected routes are taken and linear equations are built and user equilibrium technique is analysed for the obtained equations and the number of trips is calculated.