The Study on T-intersection Mixing Vehicles Flow in the Open Boundary

Under the condition of open boundary, it proposes a new model which is based on the improved two-way two-lane cellular automaton traffic flow model. It is a T intersection traffic flow model which consists of two independent running main roads and two cross by-roads which allow overtaking. The running forward vehicles runs by the NS rules. It simulates the fundamental traffic flow diagrams of every lanes under the condition of different injection probability to the main roads and by-roads. The simulation results show that the existence of intersection has an effect on the traffic flow of both main roads and by-roads, when the probability of the critical value is different, the influence which the main roads have to the traffic flow of the by-roads is stronger than the by-roads to the traffic flow of main road.