Design scheme of one-way lane-changing T-shaped intersection

Abstract

A design scheme of one-way lane-changing T-shaped intersection. The invention provides a traffic organization design and traffic control method which can improve traffic capacity of an intersection, reduce delay of the intersection and meanwhile enhance safety of pedestrians and non-motor vehicles and belongs to the field of traffic design and traffic control. In the method, through one-way cross lane changing, straight and left-turn conflict points in the intersection are moved outwardly so that left-turn of a main lane and a crossed lane are respectively achieved. Meanwhile, original three-phase control is replaced by two-phase control so that a signal timing period is greatly reduced and signal timing flexibility is improved, which is beneficial to signal and cooperative control at two conflict points and can achieve green-wave traffic so that left-turn demand quantity in the main lane and a branch lane are ensured and road traffic is ensured to be unobstructed.

Description

technical field [0001] The invention relates to a traffic organization and channelization method for improving the traffic capacity of urban road intersections, belonging to the field of traffic design and traffic control. Background technique [0002] With the development of cities, the density of urban road networks is increasing, and people's demand for traffic is also increasing. Urban road construction can no longer meet people's needs, so the organization and management of road networks is particularly important. Before proposing the new organizational scheme design of the T-shaped intersection, we still take the principle of improving the traffic capacity of the intersection. In the urban road network, the intersection node is often the bottleneck of traffic flow, and it is the main point causing traffic delay. According to statistics, in the urban road network, the delay time of vehicles at intersections accounts for 30% of the whole time. Because the traffic in al...

AI Technical Summary

Problems solved by technology

The former solution is to deal with left-turn conflicts by adding dedicated left-turn phases. Although this method solves the conflicts, there is a loss of signal time, but it leads to an increase in the delay time at the intersection and greatly reduces the traffic capacity of the intersection.

Another solution is that when high-grade roads and low-grade roads intersect, low-grade roads use right-in and right-out, and left-turns are realized by turning around through road sections. This scheme prohibits vehicles on the main road from turning left to low-grade On the road, the accessibility of the road cannot be satisfied, which affects the travel of surrounding residents

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