Method for setting free turning area based on symmetrical-phase unbalanced traffic flow intersection

Abstract

The invention discloses a method for setting a free turning area based on a symmetrical-phase unbalanced traffic flow intersection, which comprises the following steps of: 1, setting a free turning area in front of an entrance lane stop line of a fixed direction area, i.e., on the side, facing an intersection, of the entrance lane stop line of the fixed direction area; and 2, establishing a control scheme of a fixed direction area entrance lane signal lamp set and a free turning area signal lamp set, wherein the fixed direction area entrance lane signal lamp set is used for indicating a vehicle control scheme behind the entrance lane stop line of the fixed direction area, the free turning area signal lamp set is used for indicating a vehicle control scheme of the free turning area. According to the invention, the entrance lanes of the free turning area are additionally arranged at the intersection, so that the number of vehicles passing through the intersection at each phase is increased in a permeable manner. More selectable routes are provided for vehicles at the intersection, the turning requirement of intersection traffic is met, the delay time of the intersection can be obviously shortened when the signal timing period of the intersection is long, the vehicles can enter the intersection in an orderly turning mode, and the traffic jam condition of a large-flow lane is effectively relieved.

Description

technical field [0001] The invention belongs to the technical field of urban traffic management, and relates to a method for setting free direction-changing areas at intersections based on symmetrical phases and unbalanced traffic flows. Background technique [0002] With the rapid development of my country's social economy, the process of urbanization is accelerating, and the scale of cities continues to expand, resulting in a sharp increase in urban traffic demand. The construction of urban roads is relatively lagging behind the growth of motor vehicles, and the poor road network structure of road construction focuses on trunk roads and neglects secondary roads, which leads to the occurrence of common urban problems-traffic congestion, especially at road level intersections. Traffic congestion has led to a decline in traffic efficiency and also caused serious environmental pollution. [0003] At the front end of the entrance road at the intersection of existing urban road...

AI Technical Summary

Problems solved by technology

This method limits the lane selection space before vehicles enter the intersection, which often leads to a large traffic flow in a single lane, resulting in congestion; when the symmetrical traffic flow is unbalanced, it will cause a waste of green light time for one or several entrances

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