H. Holden et Nh. Risebro, A MATHEMATICAL-MODEL OF TRAFFIC FLOW ON A NETWORK OF UNIDIRECTIONAL ROADS, SIAM journal on mathematical analysis, 26(4), 1995, pp. 999-1017
We introduce a model that describes heavy traffic on a network of unid
irectional roads. The model consists of a system of initial-boundary v
alue problems for nonlinear conservation laws. We uniquely formulate a
nd solve the Riemann problem for such a system and, based on this, the
n show existence of a solution to the Cauchy problem.