Dual-lane-changing cross road intersection design scheme

Abstract

The invention discloses a dual-lane-changing cross road intersection design scheme. To be specific, the invention, which belongs to the traffic design and traffic control field, provides a traffic organization design and traffic control method, thereby improving the intersection traffic capacity, reducing the intersection delay, and enhancing the pedestrian and non-motor vehicle security. According to the method, on the basis of main road intersecting changing, intersecting lane changing of a main road is realized at an intersection; a conflict point of a straight driving lane and a left turn lane is moved externally, thereby realizing a no-delay effect of the left-turn traffic volume in the intersection range. Meanwhile, the original three-phase control way is changed into a twp-phase control way, thereby substantially reducing the signal timing dial period, implementing signal and coordination control at two conflict points conveniently, realizing the green-wave traffic, and thus ensuring the left-turn demand of the primary road and the branch and smoothness of the road capacity.

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 to prohibit the low-grade road from turning left when the high-grade road intersects with the low-grade road, and adopt the U-turn scheme of the road section to realize the left turn. This processing method increases the detour distance and makes driving through the intersection The time increases, and it will increase the pressure on the traffic capacity of the road section, and will enter the intersection twice to increase the load of the intersection; and prohibit the vehicles on the main road from turning left to the low-grade road, so that the accessibility of the road cannot be satisfied. Affect the travel of surrounding residents

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