Enskog-like discrete velocity models for vehicular traffic flow

被引:7
|
作者
Herty, Michael [1 ]
Pareschi, Lorenzo
Seaid, Mohammed
机构
[1] Univ Kaiserslautern, Fachbereich Math, AG Technomath, D-67663 Kaiserslautern, Germany
[2] Univ Ferrara, Dept Math, I-44100 Ferrara, Italy
基金
英国科学技术设施理事会;
关键词
Lighthill-Whitham-richards model; discrete-velocity equations; Monte Carlo method;
D O I
10.3934/nhm.2007.2.481
中图分类号
O1 [数学];
学科分类号
0701 ; 070101 ;
摘要
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.
引用
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页码:481 / 496
页数:16
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