Dynamic Traffic Assignment Model: Theory and Applications

摘要

The main research issues addressed in this dissertation are: (1) The developmentof a traffic model to simulate traffic flows in a network and to test Dynamic Traffic Management (DTM) instruments on their ability to solve the congestion problem; and (2) The development of a traffic management system which can predict traffic flow in a freeway network and utilize DTM instruments. The newly developed model, called 3-Dimensional Assignment (3DAS), determines the time varying traffic conditions, flow and travel time, for every link in a network during a certain simulation period. Like most other dynamic assignment models the simulation period is divided into intervals of equal duration, that are referred to as periods. The link parameters may therefore be defined separately for each period. The network and travel demand are presumed to be given.