Abstract: Basedon the Nagel-Schreckenberg traffic flow model, a cellularautomaton model of mixed traffic flow considering bus station ontwo-lane is proposed via introducing lane-change rule. Numericalsimulation indicate that the traffic flow in the bus stationswithout stopping-lane has a certain characteristics under thecondition of period boundary, that is to say, there is a power-lawscaling relationship between mean-velocity and density in thejamming phase over a medium density of vehicles.