Sugar knows ...

Japanese and Korean scientists have designed parallel parallel tracks with different distances on the surface of some roads. When the vehicle moves at a certain speed, the road will " sing " with high or low notes depending on the distance and length of the designed tracks.

According to statistics, in Korea, 68% of highway accidents are distracted by drivers, dozing off or driving too fast. The Korean Highway Administration and Hokkaido (Japan) Industrial Research Institute have thought about the sound-creating road surfaces that help drivers entertain, signaling drivers to arrive at the black spot often causing accidents. or alarm the vehicle has reached the speed limit, requiring the driver to slow down to avoid accidents.

Currently, " singing " roads are arranged in S-shaped curves where accidents often occur. However, creating these " singing " paths is not easy. In order to create a piece of music, road workers have to cut thousands of trenches on the road according to the blueprint for 4 days. And to convert vibrations into melodies, they must calculate the distance between the grooves so as to reach 5.3 cm to 10, 6 cm, with the length of the grooves can be up to 28 m.

To hear the music, the driver needs to keep the speed of 100 km / h. At faster speeds, they still hear the music but instead of listening to a soothing music, they will hear deafening sounds, and at low speeds they will listen to this song with a slow or unexciting rhythm. OK.

South Korean road and bridge managers hope that the " singing " route will help reduce traffic accidents.

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MINH ANH