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Because of the vision in tunnel gets dim and unclear, when car accident happened or broke down in the middle of road, always cause more critical collision from behind car. It's too dangerous for every driver and passenger in the tunnel.
Tunnel Alarm Lighting System is a set with sensors and lights. When the sensor detect any accidents, the system activated and turn the forward and backward light to red, for reminding the driver nearby that there is accident in front of them.
Reducing the possibility of critical collision from behind car and saving lives.