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Thin ice or black ice on the road is difficult for drivers to see.



It is virtually defenseless while driving, and the fatality rate is much higher than in general accidents.



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A truck that was running on the road suddenly stumbled and collided with the pavement.



Black ice, which is thin ice on the asphalt, was presumed to be the cause of the accident.



In a tunnel in Seoul, the shade is all over the entrance where the sun doesn't reach.



I came to the tunnel entrance.



All the snow that fell overnight has melted, so there is no problem with traffic, but there is still moisture on the road surface.



This is what black ice can be made of at night.



Black ice is dangerous because it is not easy to detect in advance.



[Lee Soo-beom/Professor, Department of Transportation Engineering, University of Seoul: Most people cannot recognize (black ice).

The color is also black.

If you suddenly feel something strange the moment you pass through black ice, it's because you suddenly operate the steering wheel or step on the brakes or something...

.]



In fact, in the past, when an experiment was conducted to pass over black ice at 30 km/h, all drivers did not recognize it.



[Jin Ho-gyun/Black Ice Experiment Participant (December 2019): (Have you seen anything (Black Ice) here?) Yes.

Actually no.

(Didn't you see it?) Yes, I didn't see it.]



Since it is an accident in which the driver fails to slow down and is defenseless, 2.47 deaths per 100 accidents involving black ice over the past 5 years have been reported.



Compared to all traffic accidents, it is 1.5 times higher.



Do not brake quickly when encountering black ice.



[Lee Seong-ryeol/Samsung Traffic Safety Culture Research Institute Senior Researcher: Most of the time, when the vehicle is slipping, it is panicked and brakes suddenly.

Rather than that, you need to cut the brake short and step on it.]



Also, if you start to slip, turning the steering wheel in the same direction is advantageous for attitude control.



In addition, it is important to drive slowly around tunnels, bridges, and roads with low traffic volumes, as there is a high possibility of freezing in winter.



▶ 44 vehicles collided in a chain reaction, one person died…

'Black Ice' of fear



(video coverage: Kim Tae-hoon · Yang Ji-hoon, video editing: Choi Hye-ran)