| 摘要 |
PURPOSE: A traffic flow displaying system is provided to notify a following vehicle of a traffic flow passing by a tunnel or bridges, thereby preventing an additional rear-end accident. CONSTITUTION: A loop coil (10) is buried in a road such as in a tunnel or on a bridge where an accident occurs frequently in order to detect vehicles passing by. A controller (20) detects speeds or road share of the vehicles using a signal inputted in the loop coil. A light source LED (30) receives the signal from the controller and displays a vehicle flow by color passing by the loop coil from the site before where the loop coil is buried. |
