Description:

Two alternative schemes are tested to avoid the use of hydraulic and pneumatic horns responsible for sound pollution. Cost effective signaling systems using radio frequency (RF) and infra-red (IR) have been developed with the implementation of working circuitry to replace the conventional horns.

The system is successfully tested by establishing communication between two cars.

IR communication has been found faster and more reliable at smaller distance than the RF communication. Both of these communication systems can be means of cost-effective reduction of sound pollution.