Abstract
In the developing countries accident is the major cause of death. The top 10 dangerous roads in the world are mountain roads and curve roads. In the mountain roads there will be tight curves and the roads will be narrow. In these kinds of situations the driver of a vehicle cannot see vehicles coming from opposite side. Thousands of people lose their lives each year because of this problem. The mountain roads might lead to a cliff. The solution for this problem is alerting the driver about the vehicle coming from opposite side in the hair-pin bends. That can be performed by placing the ultrasonic sensor on the road in one side before the road curve and then will keep the LED light after that curve, thus the vehicle which comes from the one end of the curve, the sensors which is present in that curve will sense and makes the LED light glows along with that buzzer sound and also vehicle speed is displayed at the opposite side. By looking at the LED light on signal driver can become alert and can slow down the speed of the vehicle. Thus it saves more lives.
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