Enskog-like discrete velocity models for vehicular traffic flow
Author(s) -
Michaël Herty,
Lorenzo Pareschi,
Mohammed Seaı̈d
Publication year - 2007
Publication title -
networks and heterogeneous media
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.732
H-Index - 34
eISSN - 1556-181X
pISSN - 1556-1801
DOI - 10.3934/nhm.2007.2.481
Subject(s) - traffic flow (computer networking) , limit (mathematics) , microscopic traffic flow model , flow (mathematics) , flow velocity , discrete time and continuous time , mathematics , monte carlo method , mathematical analysis , computer science , physics , mechanics , traffic generation model , computer security , statistics
We consider an Enskog-like discrete velocity model which in the limit yields the viscous Lighthill-Whitham-Richards equation used to describe vehicular traffic flow. Consideration is given to a discrete velocity model with two speeds. Extensions to the Aw-Rascle system and more general discrete velocity models are also discussed. In particular, only positive speeds are allowed in the discrete velocity equations. To numerically solve the discrete velocity equations we implement a Monte Carlo method using the interpretation that each particle corresponds to a vehicle. Numerical results are presented for two practical situations in vehicular traffic flow. The proposed models are able to provide accurate solutions including both, forward and backward moving waves.
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