As someone who is totally blind and has over 20 years of experience crossing streets I am interested in what you feel the other realistic options for crossing streets with out listening to sound are? I have excepted the fact that crossing a street will never be completely safe. At least where I walk bikes are not common on the main streets and even if they were I'd much rather get hit by someone going 25 miles an hour on a bike then an electric car going 45 miles per hour.
