The Study of a Cellular Automaton Traffic Flow Model with Right-Turning Vehicles in the Bus Lanes

Abstract

With the development of public transport, many cities in China have adopted bus lanes as a preferred method to alleviate the problems associated with high traffic demand and congestion. However, especially in the intersections, permanent dedication of one lane in the cases with lower frequency of bus services is very inefficient. We put forward a conversion section the bus lane in the upstream of intersection, in which the status of a given section changes according to the presence or not of a bus in its spatial domain: when a bus is approaching such a section, the status of that lane is changed to bus lane, and after the bus moves out of the section, it becomes open to right-turning vehicles. This measure enables to shorten the travel time of the right turn vehicles by 20%, while the speed of the buses will not be affected.