| 摘要 |
A tunnel re-broadcasting device and a controller using a road weather information system are provided to concentratedly transmit weather information received from the road weather information system immediately before a tunnel exit interval, thereby preventing a car accident of a tunnel exit. A road weather information system(150) is installed in an exit of a tunnel. A controller(200) receives weather information from the road weather information system. The controller directly controls an emergency broadcasting device, a line amplifier, a wire/wireless speaker, and a tunnel re-broadcasting device to output the weather information by voice. |
