SUMMARY
Based on the analysis of urban traffic flow affected by bus lane, a two-lane cellular automata model is established under the periodic boundary condition. The properties of traffic flow are investigated by analyzing the velocity-density and flow-density diagrams. The spatial-temporal diagrams with the two types of bus stop facilities are also discussed. Simulated results show that the bus lane can significantly improve the traffic flow , and the volume can increased by extending the bus stop length, and the bus stop with no overtaking facilities has less volume than the bus stop to permit overtaking.