Metropolis crossroad 12-direction unblocked transport hub system tunnel concave bridge

Abstract

The invention discloses a tunnel concave bridge of a traffic pivot system for the concurrent free flow of twelve routes at a cross road. The bridge of the invention is composed of a concave lane and an arch bridge so as to form the effective height for car running, and four left change lanes are arranged at the bottom of an approach bridge of the arch bridge and at the corner of a pier, thereby really realizing the concurrent free flow of the twelve routes at the cross road, greatly increasing the speed of car running, basically resolving the bottleneck problem of the traffic, effectively reducing the vertical height and the span of 50 percent bridge climbing and the depth of the concave lane down grading, saving land use without affecting city appearance and scenic visual field, maintaining the coordination and elegance of the surrounding environment, and providing a good development platform for the prosperity of the city; and the adoption of guard rail web strips, pedestrian overpasses or tunnels and nonmotorized vehicle lanes and the implementation of man and car separation basically avoid the occurrence of tragic accidents that a man is hit by a car, and greatly reduce the probability of occurrence of the traffic accidents. The bridge of the invention is widely applicable to the construction of traffic road junctions, in particular to the reform and reconstruction of the cross roads in old cities and inner cities of a metropolis.

Description

technical field [0001] The invention relates to a tunnel-concave bridge of a traffic hub system at an urban crossroad, belonging to the field of municipal traffic road construction. Background technique [0002] At present, with the acceleration of the global urbanization process and the popularization of vehicles, using cars instead of walking has improved the speed and efficiency of modern people's work, and cities generally have several or more than a dozen overpasses, which is very important for the transportation of the entire city. Undoubtedly, it is a drop in the bucket, the bottlenecks at the intersections in front of it - the red lights have blocked the winding car queues, the serious traffic jam situation in the metropolis has reached the point where it is necessary to implement comprehensive renovation (technical transformation) at the intersections, especially in Beijing In modern metropolises such as Guangzhou, Shanghai, Shenzhen, etc., where traffic and people ...

AI Technical Summary

Problems solved by technology

[0003] The main cause of the traffic jam is that the traffic lights at each intersection turn back and stop driving. If the red light is changed every 60 seconds and the vehicle speed is 30km / h, then 16.5 vehicles are blocked in 30 seconds. , traveling 83m less, resulting in a 130-minute traffic jam at the Huangpu overpass in Guangzhou from 7:40 am to 9:50 am, and the traffic queue continued to Jida, Yuancun and other places; Vehicles, the 160-minute traffic jam from 7:30 am to 10:10 am has brought great pressure to urban traffic and brought great inconvenience to people's travel

[0004] In order to alleviate the pressure of traffic, the current method of urban traffic improvement is to erect several multi-storey overpass bridges at major arterial intersections, which can eliminate the red lights at intersections and realize smooth traffic in four directions at the same time, playing an important role in traffic flow regulation However, because the red light at the intersection of the inner street still plays a role uninterruptedly for 24 hours, the continuous rotation of urban vehicles is blocked within the red light, which cannot fundamentally solve the traffic jam problem; moreover, the existing overpass The architectural design mode of the building has large investment, multi-storey, long construction period, tall and majestic, and covers a large area, which seriously affects the city appearance and landscape vision, and brings unfavorable factors such as high-altitude noise. It is only suitable for construction on major arterial roads in urban areas The crossroads or the main traffic roads in the open areas of the suburbs are used as traffic hubs to guide the traffic flow in various regions, and it is not suitable to build intersections such as inner streets and roads during reconstruction.

[0005] In short, if the urban traffic jam situation is not improved, on the one hand, in the modern commercial and trade competition world where time is money, many industry and trade giants will definitely abandon the ears; on the other hand, fire trucks, ambulances, etc. Failure to arrive at the scene at the fastest speed will lead to tragedy, and if the traffic lights of the main roads in the city cannot be exempted, it will not be able to fundamentally solve the problem of traffic congestion and blockage

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