According to the present invention, disclosed is a flashing signal device for road safety. According to the present invention, when a failure/accident occurs on a highway, a device autonomously recognizes the accident, and a driver or a rescue crew directly operates and a control central operates a delimiter in a lighting mode by wireless communication. So, the signal device recognizes an accident situation in front of a vehicle running in the rear and induces the vehicle to slow down. Therefore, by inducing the slowing of the vehicle proceeding from the rear of an accident vehicle, it is possible to cope with a forward accident situation, to prevent a secondary accident and drastically reduce mortality rate by 80% or more. The flashing signal device includes a wind power generator and a solar cell.
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