Vehicle horn Several languages have either borrowed or transcribed the name into their lexicons. In Japanese, the word refers to car horns in general, and in verb form () refers to sounding the horn. This is also true in languages such as French (), Italian (), Dutch (), Russian (), Polish (), Spanish (), Romanian (), Czech (), Turkish (), Indonesian (), and Korean (). In countries applying the Vienna Convention on Road Traffic, usage of audible warnings is limited, and allowed only in two cases: Vehicle horn A horn is a sound-making device that can be equipped to motor vehicles, buses,
Air horn to the gubernatorial election six days later. Air horn An air horn is a pneumatic device designed to create an extremely loud moan for signaling purposes. It usually consists of a source which produces compressed air, which passes into a horn through a reed or diaphragm. The stream of air causes the reed or diaphragm to vibrate, creating sound waves, then the horn amplifies the sound making it louder. Air horns are widely employed as vehicle horns, installed on large semi-trailer trucks, fire trucks, trains, and some ambulances as a warning device, and on ships as a signaling device. An