Emergency Siren Vehicle (Dorset Ambulance)IntroductionEvery daily occurrence for many drivers, here they hear the siren of an emergency vehicle, which can come from an ambulance, a police car or a fire. engine. Transportation by emergency siren vehicle is permitted after a sudden medical emergency, when your health is in danger. When the emergency siren is heard by drivers or passengers, they look towards the other side and try to check where the sounds are coming from. There should be an indication of which vehicle the sound is approaching, as the sound cannot give any idea of ​​which direction the vehicle is coming. For these reasons, drivers are unable to take appropriate preventative action until the emergency vehicle is sighted, i.e. when it is too late to clear the lane and allow the emergency vehicle (Patterson 1982). This lack of awareness can cost lives. If there is an improvement in the sound quality of the siren, it helps drivers to take evasive action beforehand, it will also help reduce travel time and also improve the safety of emergency vehicles that take in charge of emergencies and therefore increase the service provided. For these preventive measures, Dorset ambulance which is used with locator or well known as White Noise Siren system is used. Locator audio includes wideband, multi-frequency audio with white noise. This sound can be heard well by our ears, allowing us to identify where it is coming from, which is useful for rapid evacuation application. It is built at the University of Leeds. Compared to other fire alarms like conventional fire alarms, they only warn people to evacuate the building when a fire falls in the middle of a paper...... gives Thanks to the best alert sounds and locatable, they can create increased safety, both for drivers and other road users, so that they can travel more easily. This Dorset ambulance locator sound technology can be helpful in reducing the evacuation of people in time when the alarm goes off. REFERENCES: 1) Beaton, MEM a. RJ “The Alarming Sounds of Silence”. 1 to 5.2) Fidell, S. "Effectiveness of Audible Warning Signals for Emergency Vehicles." 19-26.3) Mike Holmes, KA a. SM “Devon and Somersot Fire and Rescue.” 1-35.4) Patterson, R. (1982). “Guidelines for auditory warning systems on civil aircraft”. Document 82017.5) DORSET & SOMERSET AIR AMBULANCE ANNUAL REPORT 20086) http://www.soundalert.co.uk/.7) http://www.soundalert.com/emergencyvehiclewarningsystems.htm8) The locator and directional sound