This design prevents people from crossing traffic lights and prevents accidents when crossing red traffic lights and photoelectric sensors when crossing a road. It is about a warning signal that warns the driver by looking at the warning and indicator lamp X which repeats the message 'Dangerous'.;According to the present invention, four square pillars are installed at the center of the railroad crossing in Fig. 3 A (6), so that the power supply and the red traffic light 10 are connected to the photoelectric sensor A (1) in the square pillar.;At this time, when the red light (10) is activated, the photo sensor (1) operates, and the sound signal acting on the sensor when a person crosses the railroad crossing `` danger '' sounds twice and the caution signal is displayed on transmitters A and B. The lamp operates as X character (2), and after a certain time, the sound and transmitter indication are automatically displayed as X character and the operation stops at the same time. However, the sensor A (1) stops working when the red light is out of the green traffic light when the traffic light goes out, and B (9) and (9) in the case square pillars at both intervals of the road are installed so that the person 7 is unauthorized. When crossing, the sensor is activated by B (1) and the acoustic sound is 'dangerous'. At the same time as the sound signal sounds, the indicator lamps A and B (2) are turned on, so the driver of the car can hear the sound signal and indicator lamp X and hear the sound sound from a distance. Stop;In addition, when the traffic light in front of the vehicle stop line (12) when the car is crossed in the crossing, the buzzer is detected by the sensor (11) in the crossing, so that the car protects the safety line (12) from crossing the crossing, it is characterized in that it is built in a rectangular case Road trespass prevention acoustic message is delivered.
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