Exact and grid-free solutions to the Lighthill–Whitham–Richards traffic flow model with bounded acceleration

Christian Claudel
University of Texas at Austin

The Lighthill-Whitham-Richards (LWR) traffic flow model is commonly used to describe traffic flow on networks. A major issue of this model is however the lack of realistic description of traffic at a microscopic model. In this talk, we introduce a new exact and grid-free numerical scheme for computing solutions associated with an hybrid traffic flow model based on the LWR partial differential equation, for a class of fundamental diagrams. In this hybrid flow model, the vehicles satisfy the LWR equation whenever possible, and have a constant acceleration otherwise. We also show that the proposed computational method can handle both fixed or moving bottlenecks.

Presentation (PowerPoint File)

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