I see some need for the vision impaired to know that a car is coming down the street, but If the vision impaired person obeys the crosswalk signals why would they need to hear a EV louder then a normal car traveling down the street? Vote No on adding a loud sound to EV's. Vote No on EV's noise moving backwards as a car moving backward is slow enough for the driver to stop if they see someone. The noise pollution in the city is so loud now we do not need in the future 100's or 1000's of cars making even more noise.