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Design method of T-shaped intersection of arterial highway in mountain area for traffic safety

A technology of traffic safety design and intersection, which is applied in the field of traffic safety design of T-shaped intersections of trunk highways in mountainous areas, and can solve the problems of difficult intersection location and form, unreasonable design of safety facilities, frequent accidents on collision with fixed objects and overrunning off-road. , to ensure safety and comfort, not easily stolen, and improve speed perception

Inactive Publication Date: 2013-12-11
WUHAN UNIV OF TECH
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Problems solved by technology

[0009] The present invention aims at the characteristics of unreasonable design of safety facilities at T-shaped intersections of existing mountainous arterial roads, common speeding, difficulty in discovering the position and form of intersections by drivers in time, frequent accidents of bumping into fixed objects and overturning outside the road, and provides a mountainous arterial road Traffic Safety Design Method for Highway T-shaped Intersection

Method used

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  • Design method of T-shaped intersection of arterial highway in mountain area for traffic safety
  • Design method of T-shaped intersection of arterial highway in mountain area for traffic safety
  • Design method of T-shaped intersection of arterial highway in mountain area for traffic safety

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Embodiment Construction

[0035] like Figure 1-5As shown, the present invention is aimed at the unreasonable design of the safety facilities at the T-shaped intersections of the existing mountainous arterial highways, common overspeeding, difficulty in finding the position and form of the intersections in time by the driver, and the frequent occurrence of accidents outside the road when bumping into fixed objects and overturning. Based on the traffic flow characteristics of trunk roads, a multi-level safety protection system for T-shaped intersections of trunk roads in low-cost mountainous areas is constructed by combining the methods of active induction and passive protection. Firstly, according to the collision energy of turning vehicles on the roadside, the degree of roadside danger is divided into three levels, and then guardrails with different protection capabilities are set up. Before the main road traffic enters the intersection, the retroreflection information provided by the independent conc...

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Abstract

The invention relates to a design method for a T-shaped intersection of an arterial highway in a mountain area for traffic safety. Roadside protections are graded according to the collision energy of vehicles steering at the roadside of the intersection, and corresponding novel concrete guard bar structures are arranged; guard bars comprise herringbone collision posts and independent concrete short bases, the requirements of different protection levels of the roadside at the intersection are met by regulating the spaces, sizes and the depth embedded into a roadbed of the herringbone collision posts, and the purpose of protecting the vehicles steering at the intersection is achieved; the included angle between the herringbone collision posts and the edge line of a lane is 5-15 degrees, so that the protection area for steering vehicles is increased; PVC (poly vinyl chloride) pipes are sheathed on the outer layers of the collision posts, red-and-white retroreflection vertical face mark lines are arranged on both the collision posts and the concrete short bases, so that the visibility of the intersection is improved; 3-4 groups of vibration deceleration zones are arranged on the crossed road 3-6m away from the intersection; vibration side lines are additionally arranged at the roadside in the range of 30-50m in all the directions of the intersection. The design method is applicable to controlling the T-shaped intersection in the mountain area without signal control, and the primary road is a second-class highway or a first-class highway.

Description

technical field [0001] The invention relates to a traffic safety design method for a T-shaped intersection of an arterial road in a mountainous area. The design method is adopted to ensure the driving safety of the T-shaped intersection of an arterial road in a mountainous area. Background technique [0002] The characteristics of traffic flow at arterial highway intersections in mountainous areas are complex, and traffic safety facilities are lacking, which are frequent spots of traffic accidents. For mountainous arterial highways, the overall traffic flow is not large, so most of them are unsignalized control intersections. Studies have shown that the sum of the accident rate of two T-shaped intersections is about 43% of that of a cross-shaped intersection. Reconstructing T-shaped intersections is one of the improvement methods for non-signal-controlled intersections, so T-shaped intersections are the most common design form of mountainous intersections. The main reasons ...

Claims

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Application Information

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IPC IPC(8): E01C1/02E01F15/00
Inventor 杜志刚万红亮郑展骥方乔铁文君肖遥
Owner WUHAN UNIV OF TECH
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