Abstract:
The goal of this research is to model traffic flow in Khartoum City using four-step model (FSM): trip generation, trip distribution, modal choice and trip assignment. In the first stage, the trip production and attraction were determined .In the second step, the traffic flow distribution among zones was considered. Thirdly, graphical relationship for probability to choose mode were developed .The last step dealt with distribution of traffic along routes by the method of Bureau of Public Roads (BPR) which is mpared with Davidson procedure. The comparison was favorable with percentage difference not exceeding 8% result indicated.
