A Computationally Efficient and Temporally Scalable Dynamic Traffic Simulation and Assignment System – Dynamic Urban Systems in Transportation ( DynusT )

The dynamic traffic simulation and assignment model DynusT (Dynamic Urban Systems in Transportation) is a model system that is designed and implemented to perform simulationbased dynamic traffic assignment (DTA) analysis. Due to its unique algorithmic structure and software implementation, it is capable of performing DTA on regional-level networks with long simulation period. This makes DynusT particularly well-suited for regional level modeling such as regional transportation planning, corridor studies, integration with activity-based models and mass evacuation modeling. The purpose of this paper is to present an overview of the theoretical and algorithmic innovation in DynusT.