Offset intersection overpass with preposed left turning for crossroad

Abstract

The invention provides an offset intersection overpass with a preposed left turning for a crossroad. The overpass comprises a vertical lane, a transverse lane, a traffic lane, a left turning overpass, a left turning overpass entrance and a left turning overpass exit. The overpass is characterized in that the left turning overpass entrance of the vertical lane is elevated at the preposed position, an S-shaped turning spans the reverse traffic lane in the front of an exit of a reverse left turning overpass to move forwards along the sideway, an arc turning spans the reverse traffic lane of the transverse lane, and a downgrade is merged into a forward inside traffic lane; and left turning overpasses in other three directions are erected in the same mode. Compared with the prior art, the overpass with the preposed left turning for the crossroad has the advantages of compact integral structure, complete single layer, small influence to visual transparency and peripheral environment, low climbing slope for vehicles, less detour and small occupied floor area and space, is particularly applicable for urban central areas, downtown areas and landscape areas which require to improve the traffic speed but are deficient in dimensional elasticity. Therefore, the overpass has high popularization value.

Description

1. Technical field: [0001] The invention relates to a method for erecting a bridge, in particular to a left-turning front dislocation overpass at a crossroad. 2. Background technology: [0002] The multi-directional alternating traffic at the intersection of urban roads has become the most common and important problem that affects the driving speed and causes road congestion. The best solution to the congestion is the overpass bridge. Due to the large height difference, long ramps and large area occupied by these overpasses, and the wide impact on the surrounding environment, these overpasses make the city center, downtown and landscape areas that most need to increase the traffic speed and lack space flexibility Impossible or very difficult to adopt. 3. Contents of the invention: [0003] The purpose of the present invention is to address the above deficiencies and contradictions, to provide a compact, all-single-layer, occupying less ground area and space, changing mult...

AI Technical Summary

Problems solved by technology

[0002] The multi-directional alternating traffic at the intersection of urban roads has become the most common and important problem that affects the driving speed and causes road congestion. The best solution to the congestion is the overpass bridge. Due to the large height difference, long ramps and large area occupied by these overpasses, and the wide impact on the surrounding environment, these overpasses make the city center, downtown and landscape areas that most need to increase the traffic speed and lack space flexibility unavailable or difficult to adopt

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