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交通护栏_百科_双顿护栏

  • 来源: 发布时间:2019-03-22 201 次浏览

交通护栏是设置在路肩外侧、交通分隔带以及人行道路牙等位置的一种交通安全设施。通过自体变形或车辆爬高来吸收碰撞能量,从而改变车辆行驶方向、阻止车辆越出路外或进入对向车道、更大程度地减少对乘员的伤害。

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路旁护栏用于保护车辆及车里面的人防止受到位于道路旁边的天然或人工物件的碰撞。车辆撞击交通护栏可能既损害车辆/乘客又损害护栏本身,注意到这一点是重要的。碰撞护栏引起的损害通常不如碰撞位于护栏之后的部件严重,因此交通护栏代表了这两种考虑之间的一个折衷。除了保护车辆之外,交通护栏也用于屏蔽行人、养护/施工人员、或者来自不定交通的骑脚踏车的人。以它最基本的形式,交通护栏设计用于防止离开车行道的车辆撞击固定的物体。护栏首先阻拦一个事故车辆,然后使其改变方向。因为车辆冲击的可变性以及高速下的破坏作用,应当引进全面的全尺寸破坏试验,以保证将要使用的交通护栏的安全可靠性。

可以使用的护栏有很多种尺寸和形状。护栏类型的选择取决于多种因素,包括公路所处的环境以及速度和交通量。

交通护栏的作用有:

一是防止车辆冲出路外造成翻车事故,特别是设置在山区弯道、险道处的交通护栏,对机动车驾驶员来说,在远处可引起充分的注意,使其提高警惕,在通过时还能对驾驶员进行视线诱导,帮助其进行正确操作,

二是可防止对向车发生正面冲突,同时可防止同向车发生擦、挂;

三是可防止车辆冲撞行人,并可防止行人任意横穿马路等。

Traffic guardrail is a kind of traffic safety facility which is set on the outside of shoulder, traffic partition belt and pedestrian teeth. The collision energy can be absorbed by self-deforming or vehicle climbing, which can change the direction of the vehicle, prevent the vehicle from crossing the exit or entering the alignment lane, and minimize the injury to the passengers.

Roadside guardrails are used to protect vehicles and people inside them from collisions with natural or artificial objects located on the side of the road. It is important to note that a vehicle crashing into a traffic barrier may damage both the vehicle/passenger and the barrier itself. Traffic barriers represent a compromise between the two considerations, since the damage caused by crashing a barrier is usually less serious than that caused by crashing a component behind the barrier. In addition to protecting vehicles, traffic barriers are also used to shield pedestrians, maintenance/construction personnel, or cyclists from uncertain traffic. In its most basic form, traffic barriers are designed to prevent vehicles leaving the lane from hitting fixed objects. The guardrail first blocks an accident vehicle and then changes its direction. Because of the variability of vehicle impact and the destructive effect at high speed, comprehensive full-scale destructive test should be introduced to ensure the safety and reliability of the traffic guardrail to be used.

There are many sizes and shapes of guardrails that can be used. The choice of guardrail type depends on a variety of factors, including the environment of the highway, speed and traffic.

The functions of traffic barriers are as follows:

One is to prevent overturning accidents caused by vehicles rushing out of the road, especially the traffic barriers located in mountain bends and dangerous lanes. For motorists, they can draw sufficient attention in the distance and make them alert. They can also guide the drivers'sight and help them operate correctly when passing.

Secondly, it can prevent frontal collision of the opposite car, and prevent the same car from scraping and hanging.

Thirdly, it can prevent vehicles from colliding with pedestrians and pedestrians from crossing the road at will.

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