Traffic flow equations.
Riemann problem for cars stopping at a red light.
The file traffic.m gives a demo of traffic flow stopping at a red light, using a Lagrangian method (tracking cars).
Example [book/chap11/burgers/redlight] to accompany Figure 11.2 of the book Finite Volume Methods for Hyperbolic Problems by R. J. LeVeque.
Converted to Clawpack 5.0 form in 2013.
Converted to Clawpack 5.4.0 form in 2017.