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ALTHOUGH I HAVE ONLY BEEN BLIND FOR FIVE YEARS, I MUST EXPRESS MY OPPOSITION TO AUDIBLE WARNINGS. AN AUDIBLE WARNING WOULD ONLY CONFUSE THE SITUATION AT INTERSECTIONS FOR MOST BLIND USERS. IT WOULD SHIELD THE USER FROM THE SOUND OF TRAFFIC THAT MOST BLIND HAVE BEEN TRAINED TO RECOGNIZE. I CAN'T IMAGINE DEPENDING ON A TONE TO CROSS THAT MAY MASK THE SOUND OF APPROACHING TRAFFIC. THIS WOULD BE A DANGEROUS SITUATION INDEED.