Design scheme for concave-polygon-shaped cross ring road intersection

Abstract

The invention relates to a design scheme for a concave-polygon-shaped cross ring road intersection, and particularly relates to a traffic organization design and traffic control method for improving the traffic capacity of the roundabout, reducing the traffic delay on the intersected roads and improving the street crossing safety of pedestrians and non-motorized vehicles, belonging to the field of traffic design and traffic control. The concave-polygon shaped cross ring road intersection is an improvement on the traditional rotary intersection. By increasing the straight-going traffic on the main roads and giving priority to the straight-going traffic on the main roads, the traffic delay of the straight-going traffic flow on the main roads at the roundabout can be reduced. In addition, by additionally arranging signal lights at the main roads and the roundabout, adopting the two-phase signal control and jointly controlling multiple signal light control sites, the green wave traffic can be realized, the traffic delay on the main roads can be reduced, and the traffic capacity of the rotary intersection can be improved. The traditional round roundabout is compressed to obtain the concave-polygon-shaped cross ring road intersection, and the traffic organization form of the roundabout is realized by steering. The concave-polygon shaped cross ring road intersection can adapt to terrains and is particularly suitable for the situation with shortage of land.

Description

Technical field [0001] The present invention involves a transportation organization and canal method that improves the cross -intersection capacity of urban roads, which belongs to the field of transportation 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 transportation is also increasing. Urban road construction can no longer meet people's needs, so the organization management of road networks is particularly important.In the urban road network, the cross nodes are often the bottleneck of traffic, and it is the main point of traffic delays. Especially for ring cross -port, the traffic ability is limited.According to statistics, in the urban road network, the delay time of the vehicle at the intersection accounts for 30%of the whole time.Because traffic in all directions at the intersection needs a large number of conflicts, diversion, and cross -crossing conflicts...

AI Technical Summary

Problems solved by technology

Therefore, for traditional roundabouts, the traffic capacity is low, and the total traffic volume suitable for going straight and turning left is within 3000pcu / h

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