Improved tunnel concave bridge of traffic hub system for keeping intersection simultaneously smooth in sixteen directions

Abstract

The invention discloses an improved tunnel concave bridge of a traffic hub system for keeping an intersection simultaneously smooth in sixteen directions. The tunnel concave bridge is applied to an intersection formed by two mutually-crossed two-way vehicle lanes. The tunnel concave bridge comprises a first vehicle lane A and a second vehicle lane B. An arch bridge is built over the first vehiclelane A and crosses over the second vehicle lane B. A concave lane which is sunk downwards is arranged on the part of the second vehicle lane B, which runs through the arch bridge. Bridge opening laneentrance and exit are respectively arranged at approach bridge seat openings at the two sides of the second vehicle lane B below the arch bridge. Auxiliary bridges are respectively arranged at the two sides in the width direction of the arch bridge, which comprise two tangential arc-shaped lanes, namely an inside lane C and an outside lane D. The auxiliary bridges are one-way traffic and are communicated with the entrances and exits of the lanes of the arch bridge and the bridge opening lanes so as to facilitate the vehicles to travel by changing the directions and making left or right turns at random.

Description

technical field [0001] The invention relates to an improved tunnel-concave bridge of a traffic hub system at an urban crossroad, which belongs 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 traff...

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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