System and method used for alleviating traffic congestion of crossing

Abstract

The invention discloses a system used for alleviating traffic congestion of a crossing. A primary buffer zone, a secondary buffer zone, buffer zone signal lamps, traffic signal lamps and cameras are arranged at each road of the crossing respectively, wherein an area, less than dm from a stop line, of each road of the crossing is taken as the primary buffer zone, and a fixed traveling direction isnot set for all the lanes in each primary buffer zone; an area, except the primary buffer area, of each road of the crossing is taken as the secondary buffer zone, and a fixed traveling direction is set for each lane in each secondary buffer zone; the buffer zone signal lamps are used for indicating vehicles in the secondary buffer zones to enter the corresponding primary buffer zones; and the traffic signal lamps are used for indicating vehicles in the primary buffer zones to travel and pass the crossing. In the method disclosed by the invention, indication of the buffer zone signal lamps isdecided by the traffic signal lamps and indication of the traffic signal lamps is decided by traffic flow monitored by the cameras provided with a virtual coil, namely the indication of the buffer zone signal lamps, the indication of the traffic signal lamps and the traffic volume monitored by the cameras are in a linked relationship.

Description

technical field [0001] The invention relates to the technical field of regulation and control of complex intersections, in particular to a system and method for alleviating traffic congestion at intersections. Background technique [0002] With the development of social economy, cities are getting bigger and bigger, and there are more and more intersections, and the problem of traffic congestion is becoming more and more serious. It often occurs in intersections that the vehicle congestion in a certain lane on a road in a certain direction is serious. For left-turning vehicles, lighthouse vehicles form a blockage in the straight lane, while the left-turning lane is free, or left-turning vehicles are obviously more than straight-going vehicles. For the situation where the number of vehicles in the through lane and the left-turn lane are severely polarized, the space utilization rate of the lane with sparse vehicles is low, resulting in low traffic efficiency at the intersecti...

AI Technical Summary

Problems solved by technology

For the situation where the number of vehicles in the through lane and the left-turn lane are severely polarized, the space utilization rate of the lane with sparse vehicles is low, resulting in low traffic efficiency at the intersection

[0003] The time and space contradictions existing in the road traffic system at intersections lead to disordered traffic at intersections and low traffic efficiency

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