Urban transportation demand analysis for Dar es Salaam: A network equilibrium approach.

摘要

A network equilibrium model is applied to Dar-es-Salaam, Tanzania, to analyze demand for travel to work in the city. The modes considered are auto, public bus and minibus. The walk mode is auxiliary to the two transit modes. It is concluded that the auto is the most expensive mode. The mode split analysis revealed 31, 30, 27 and 12 percent shares for public bus, minibus, auto and walk modes. The travel costs, including travel time and fare equivalents, are 74, 75 and 101 minutes for the public bus, minibus and auto respectively. For the auto mode, the average travel distance is 6.5 kilometers, while the Vehicle Kilometer Traveled is 87,260 kilometers. Policy analyses confirmed the possibility of collecting revenue from an auto tax to subsidize the public bus company. The minibus mode would perform well if allowed to work in a more competitive environment.