a complete vehicle accident prevention system utilizing electromagnetic transmissions for the purpose of : 1 ) alerting drivers to the presence of certain unanticipated accident threats such as pedestrians , bicyclists , joggers , emergency vehicles , disabled vehicles , etc . ; 2 ) alerting people using the roadway that a vehicle is approaching thereby inducing them to move to the side of the road . the system also utilizes a speaker assembly mounted on the vehicle to forwardly transmit a pre - programmed array of natural sounds having a frequency audible to the typical human ear for the purpose of inducing animals and people to vacate the path of the approaching vehicle . the controller may receive data from a radio direction finder to cause the display to indicate to the driver of the vehicle the relative position of a potential road hazard .