A TRAFFIC FLOW MODEL WITH NON-SMOOTH METRIC INTERACTION: WELL-POSEDNESS AND MICRO-MACRO LIMIT

We prove existence and uniqueness of solutions to a transport equation modelling vehicular traffic in which the velocity field depends non-locally on the downstream traffic density via a discontinuous anisotropic kernel. The result is obtained recasting the problem in the space of probability measures equipped with the oo-Wasserstein distance. We also show convergence of solutions of a finite dimensional system, which provide a particle method to approximate the solutions to the original problem.