Abstract
Giving buses priority is an important measure to improve the attractiveness of public transport and to reduce urban traffic congestion. Reducing bus service delays as much as possible will have a positive impact on urban traffic. Based on the pre-signal system, a bus at an intersection with a left-turn special phase is optimized by “tandem design”. The design model is applied to the entrance of an intersection to study the process of vehicle arrival and departure at the main signal and pre-signal, and to calculate and analyze the delay changes of buses, straight social vehicles (meaning vehicles other than those required to be open to traffic) and left-turn vehicles before and after the adoption of “tandem design”. The results show that when the vehicle capacity at the intersection is saturated, the delays to buses and the delays of left-turn vehicles will be significantly reduced once the “tandem design” is adopted at the entrance of a cross intersection with a special left-turn phase. However, it has little effect on the delay of straight-on vehicles; with this system, the total delay experienced by straight vehicles will be reduced to one cycle.
Highlights
The road-planners of Paris, France first put forward the concept of “bus priority”, which is related to the historical background of French economic development
Daganzo analyzed the influence of the pre-signal control method on the capacity of signalized intersections, and the results show that the use of pre-signal control can improve the capacity of signalized intersections [13]
The results show that intermittent bus lanes can achieve bus priority, reduce bus delays, and have no significant impact on social vehicle delay [18]
Summary
The road-planners of Paris, France first put forward the concept of “bus priority”, which is related to the historical background of French economic development. The rapid development of the French economy after the Second World War led to a sharp increase in the number of motor vehicles, accompanied by increasingly serious urban traffic congestion and environmental pollution. At this point, the French government began to realize the importance of the development of public transport, and the public transport priority policy came into being [1]. In the face of these problems, many cities in China have put forward the concept of “bus priority”, which aims to alleviate current urban traffic congestion and improve urban traffic flow
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