| 摘要 |
PURPOSE: A device for inducing a car to stop for a crosswalk is provided to secure visibility in a dead zone by making a tube of a subsidiary signal part to be protruded from the upper part. CONSTITUTION: An air tank(120) is filled with compressed air by an air pump(110). An unevenness part(130) is formed on a lane separated from a crosswalk. The unevenness part ascends and descends according to the inflow and discharge of the compressed air. A first switching valve(140) is switched by a control box(150). The control box controls the first switching valve and the air pump. [Reference numerals] (110) Air pump; (120) Air tank; (130) Unevenness part; (160) Circulation pump; (170) Subsidiary signal unit |
