Close grooves appear on the sides of some roads before dangerous curves and produce sound and vibration to alert distracted drivers

Original: Ranhuras estreitas aparecem nas laterais de algumas estradas antes de curvas perigosas e produzem som e vibração para alertar motoristas distraídos

Catraca Livre ·
Em Português & Español Brazil

Those slots on the track have a safety function. See how sound tracks alert drivers before curves, crossings, and other points of attention. The post Narrow grooves appear on the sides of some roads before dangerous curves and produce sound and vibration to alert distracted drivers appeared first in Free Turns.

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