T-type intersection design plan based on concept of traffic flow reserve districts

Abstract

The invention relates to a T-type intersection design plan based on a concept of traffic flow reserve districts. The T-type intersection design plan based on the concept of traffic flow reserve districts is a traffic organization design and a traffic control method which can increase traffic capacity at the intersection and reduce delay at the intersection, and belongs to the field of traffic design and traffic control. According to the method, a left-turn traffic flow of a crossed road is realized by adopting an intersection through-U turn, and two-phase signal control (go straight, turn round) is adopted at the through-U turn, so that the T-type intersection is changed into two-phase signal control (go straight on a main road, turn left on the main road); two signal lamps are coordinatively controlled by green wave traffic, thereby greatly reducing a signal timing period. Compared with a conventional intersection plan, the design plan provided by the invention reduces phases, conflict points and delay, increase running efficiency of the intersection, and increasing whole traffic capacity of the road.

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 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 all directi...

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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