Alpha-shaped urban interchange with small steering angle and urban interchange group combination method

Abstract

The invention discloses an alpha-shaped urban interchange with a small steering angle, which comprises two mutually staggered two-way roads, and inner side lanes of the roads are straight lanes; the middle lane of the rear half section of the third road is connected with a first sinking lane through a first downhill section, and the first sinking lane is communicated with the middle lane of the rear half section of the first road through a first left-turn lane; the middle lane of the rear half section of the fourth road is connected with a second sinking lane through a second downhill section, and the second sinking lane is communicated with the middle lane of the rear half section of the second road through a second left-turn lane. The invention further discloses an urban interchange group combination method which comprises at least two alpha-type urban interchange bodies with small steering angles, and the adjacent urban interchange bodies are connected through the urban road grids. According to the alpha-shaped urban interchange with the small steering angle and the urban interchange group combination method, the traffic flow of a crossroad is increased by four times through a single interchange; the urban grid road network interchange group is combined, and the peak traffic flow of the urban road network is exponentially improved.

Description

technical field [0001] The invention relates to the field of overpass bridges, in particular to a small steering angle α-type urban overpass and an urban overpass group combination method. Background technique [0002] In order to solve urban traffic congestion, many large cities are vigorously building loop viaducts. Urban viaducts require a large investment and affect the urban landscape and skyline. It is necessary to limit the height and heavy load, otherwise there will be potential safety hazards. Elevated roads can relieve congestion in large urban areas to a certain extent. But it has not fundamentally solved the problems of many sub-branch roads, many crossroads, many traffic lights, and low efficiency of microcirculation in urban neighborhoods. According to existing traffic rules, most of urban motor vehicles do not need to wait for traffic lights when they turn right, but they will wait at least three times for traffic lights when they go straight at an intersect...

AI Technical Summary

Problems solved by technology

Three-quarters of the traffic time at an intersection is wasted waiting, not counting the time delay for motor vehicles to start

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