Abstract
This paper deals with a model which can be used for the design, the planning and the evaluation of an urban public transport system. The model can be subdivided into three pars: 1. concentration of traffic flows, 2. design of routes and assignment of service frequencies, 3. evaluation and improvement of the public transport system. The spatial distribution pattern of people and working places, several socioeconomic data and the road network are the main input data. The output of the model consists of a public transport network with routes, frequencies vehicle use and a fair amount of evaluation criteria. The results of some computations with the model are presented using a test network.