Electric vehicles are notoriously quiet. This is not typically a selling point, but certainly a side benefit. There is legislation in the works that would require sound. Electric and hybrid vehicles are especially targeted. There is already after-market technology available to add the roar of a motor to hybrid vehicles.
The problems with silent vehicles
A slow vehicle won't make much noise. This is especially the case with hybrids and electrics. Generally, the vehicles will make sound over 20 miles per hour from the air resistance, although it isn't at all the same as a gas car would make. Sound pollution might be helped greatly with these vehicles. It is still a problem for anyone who needs the noise though. Those who need the sound contain cyclist, the blind and pedestrians. They use the sound to determine how close or far away car is which is harder when the sound changed. Limited studies have shown that hybrids and electrics are twice as likely to collide with pedestrians at intersections and parking lots, where the cars are moving at very low speeds.
Something that needs to be addressed
Some automobile companies, for instance Nissan Motors, are already working to address the issue of automobile sound. In the future, the Nissan Motors Leaf will make a noise. It was referred to as a "futuristic buzzing noise" at one point. Several corporations have developed kits to put into hybrid cars that make sound. One of these companies is Lotus Engineering. A Prius could be converted to sound like a race car with one kit. Kits are also available to create 8- and 12-cylinder vehicle sounds, so technology is already available to add sound to quiet hybrids and electric cars.
Trying to create international criteria
A requirement for automobile sound can be put together by the National Highway Traffic Safety Administration. The European Union is also considering comparable regulation. Car makers have been asking if it is possible to do natural noises. Most blind-advocacy groups are against this though. To be able to ease the transition and prevent any difficulties with electronic noise on freeways, the Society of Automotive Engineers is hoping to create worldwide standards.
The problems with silent vehicles
A slow vehicle won't make much noise. This is especially the case with hybrids and electrics. Generally, the vehicles will make sound over 20 miles per hour from the air resistance, although it isn't at all the same as a gas car would make. Sound pollution might be helped greatly with these vehicles. It is still a problem for anyone who needs the noise though. Those who need the sound contain cyclist, the blind and pedestrians. They use the sound to determine how close or far away car is which is harder when the sound changed. Limited studies have shown that hybrids and electrics are twice as likely to collide with pedestrians at intersections and parking lots, where the cars are moving at very low speeds.
Something that needs to be addressed
Some automobile companies, for instance Nissan Motors, are already working to address the issue of automobile sound. In the future, the Nissan Motors Leaf will make a noise. It was referred to as a "futuristic buzzing noise" at one point. Several corporations have developed kits to put into hybrid cars that make sound. One of these companies is Lotus Engineering. A Prius could be converted to sound like a race car with one kit. Kits are also available to create 8- and 12-cylinder vehicle sounds, so technology is already available to add sound to quiet hybrids and electric cars.
Trying to create international criteria
A requirement for automobile sound can be put together by the National Highway Traffic Safety Administration. The European Union is also considering comparable regulation. Car makers have been asking if it is possible to do natural noises. Most blind-advocacy groups are against this though. To be able to ease the transition and prevent any difficulties with electronic noise on freeways, the Society of Automotive Engineers is hoping to create worldwide standards.
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