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Stability of Partially Congested Travelling Wave Solutions for the Dissipative Aw-Rascle System
É Deléage1,2, Muhammed Ali Mehmood3
1Aix Marseille Univ., CNRS, Centrale Marseille, I2M UMR CNRS 7373, 13000 Marseille, France.
Abstract:
We prove the non-linear stability of a class of travelling-wave solutions to the dissipative Aw-Rascle system with a singular offset function, which is formally equivalent to the compressible pressureless Navier-Stokes system with a singular viscosity. These solutions encode the effect of congestion by connecting a congested left state to an uncongested right state, and may also be viewed as approximations of solutions to the 'hard-congestion model'. By using carefully weighted energy estimates we are able to prove the non-linear stability of viscous shock waves to the Aw-Rascle system under a small zero integral perturbation, which in particular extends previous results that do not handle the case where the viscosity is singular.
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