The theory of transit assignment: basic modelling frameworks

In this chapter, the different basic assumptions for the development of assignment models to transit networks (frequency-based, schedule-based) are presented together with the possible approaches to the simulation of the dynamic system (steady state, macroscopic flows, agent-based). The main functional components of uncongested assignment and user equilibrium (route choice, flow propagation, arc performances) are also illustrated here in their general form, while the various demand and supply phenomena emerging in transit systems (regularity, congestion, information) are dealt with in the following Chap. 7