Computer Modeling and Simulation of Mixed Traffic Flow under Turn Signal and Honk Effect

To study the influence of turn signal and honk in the mixed traffic flow including motor vehicle, electric bike and bike, a four-lane cellular automata model is established. The motor vehicle turns on the turn signal before changing lane, which can decelerate the latter vehicle on the adjacent lane. The motor vehicle can honk to make the preceding electric bike change lane, which is called 'the first-honk‘. Besides, the electric bike can honk to make the preceding bike change lane, which is called 'the second-honk‘. The simulation results show that the turn signal effect and honk can significantly reduce obstruction in space-time diagram. The turn signal effect decreases the motor vehicle flow, but two honk effects can increase it. The turn signal effect and the second-honk improve the non-motor vehicle flow, but the first-honk reduces it. The density section in which these effects occur frequently is very different.