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On both sides of expressways or in the middle of urban roads, we often see some guardrails composed of iron bars and steel plates. In addition to the function of separating the lanes, these guardrails also have a role to ensure safety. Why have these security barriers become deadly weapons? Let's take a look.

What is a "life-threatening guardrail"? These guardrails are usually composed of some long and thin steel bars. If the car speeds too fast, these guardrails will hit everywhere and fly, and the steel bars will pierce the whole thing like a sharp arrow. The most vulnerable place in the car, the windshield, is inserted straight into the cab, and the consequences are disastrous. If you are lucky, these steel bars will only pierce the windshield. If you are not lucky, it is possible to pierce the human body. No amount of airbags and active and passive safety devices will help.

　　Why are these guardrails "killing"? The reason why these guardrails are "killing" can be explained from the following two aspects: First, the driver's own reasons. These guardrails can reach the level of life-threatening. Presumably, the speed of the vehicle must be very fast when it hits these guardrails. Speeding is almost impossible. Then it is the driver's inattention, fatigue driving, drunk driving, drug driving, etc. will choose to directly hit the guardrail. The second is the problem of the guardrail itself.

Most of these guardrails nowadays are easy to assemble and can be fixed with sleeves and buckles. The material of the guardrail is not only steel, but some will be mixed with plastic, which makes these guardrails very fragile, and the manufacturer has not conducted safety tests on these guardrails. As long as the speed of the car is fast enough, the fragments of the fence after being hit will fly around like bullets and sharp arrows. The first thing to bear is the cab behind the windshield of the car.

　　How to stay away from these "life-threatening guardrails"? In fact, for the drawbacks of the above-mentioned guardrails, foreign studies have long been conducted, and a new type of guardrail has also been developed. This kind of guardrail is called a swing anti-collision barrel. When the vehicle hits the guardrail at high speed, the rotating anti-collision barrel embedded in the guardrail will push the vehicle to the front of the guardrail according to the inertia of the vehicle to prevent the vehicle from crashing into the guardrail or rushing to the reverse lane next door. More damage.

　　 Although this kind of guardrail has been introduced into the country at present, due to the high cost, this kind of guardrail has not yet been widely used. In any case, no matter how safe the guardrail and the solid body are, the driver’s safety awareness is not enough. If you don’t treat driving as a child’s play, you are responsible for yourself and others. You must strictly abide by traffic laws, and do not speed, drink, or distract. , These guardrails naturally have no safety hazards.