Thursday, October 15, 2009
Good to see that this is getting traction, as the only reservation I've had about electric cars has been the lack of sound - something crucial to both animals and humans, especially the blind. It's also important to those with sight as well though. I'm not sure what the exact number is but while walking down the street it seems like about half the cars I identify approaching are through sound alone.
After all, the quietest of vehicles (bicycles) are always equipped with a tiny bell to let people know when one is coming from behind. This doesn't mean that a horn would suffice for a car though - a car is much more dangerous than a bicycle and moves at a much faster rate, and the bicycle bell to be honest isn't all that effective for identifying where the vehicle is coming from. A steady sound is the only real way to get a feel for the speed and direction of a vehicle when it approaches from behind.