Mixed multi-speed vehicles on two-lane cellular automaton model under public transit influence with period boundary condition

Based on the existing classical cellular automaton model of traffic flow,a new traffic CA model was proposed mixed with the situation of urban traffic in our country,which redemarcated the parameters,such as length of the cellar automaton,operation speed,and which not only improved vehicle changing lane regulation but also proposed public transit vehicles slow to stop regulation.Some simulations were carried out and the results show that this model reproduced the relationship among three parameters of traditional traffic flow.