Signal control optimization method of bus transit lane at single-point intersection

Abstract

The invention discloses a signal control optimization method of a bus transit lane at a single-point intersection. The signal control optimization method disclosed by the invention comprises the following steps: calculating an average vehicle delay at an intersection based on the Webster intersection delay analysis method; respectively solving a bus delay and a social vehicle delay, performing weighted averaging, and establishing an intersection comprehensive delay model after a bus weight is given; establishing a single-point intersection signal control model based on the minimum comprehensive delay; and designing a scheme of guiding the vehicles to accelerate / decelerate to arrive at the intersection at proper moments in combination with an optimized signal period time length and an optimized green light time length. According to the signal control optimization method disclosed by the invention, the minimum average vehicle delay is taken as the optimization target of the signal control, and based on the driving characteristics of bus fleets, the bus fleets can pass through the intersection, thereby realizing the priority of the buses and improving the traffic efficiency of the buses at the intersection.

Description

technical field [0001] The invention belongs to the traffic field, and in particular relates to a signal control optimization method for a bus lane at a single-point intersection. Background technique [0002] The intersection is a complex system, with the interweaving and diversion of traffic flow in all directions, and the conflict of different types of traffic. The traffic control measures implemented at the intersection should not only allow various traffic flows to pass smoothly, but also consider the overall traffic level of the intersection. Among them, unconditional priority is the highest priority guarantee for public transport, and is usually used in bus corridors or bus systems with special requirements. In this way, vehicles in the non-transit priority direction may be seriously delayed at the intersection, which will affect the traffic efficiency of the entire intersection. In contrast, conditional priority is more in line with the city's expectations and requ...

AI Technical Summary

Problems solved by technology

This method may cause serious delays for vehicles in the non-transit priority direction at the intersection, which will affect the traffic efficiency of the entire intersection

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