On 6/6/06, Robert Rolf wrote: > > > Spehro Pefhany wrote: > > At 04:41 PM 6/6/2006 +0530, you wrote: > > > >>Oh.. I see. May be I should close my eyes and try it once. I am afraid, I > >>may cross the junction diagonally as the beep is cyclic over the corners... > >>;-) > > > > > > I don't remember what they do in Berlin, but in Hong Kong, they make a > > rhythmic noise alternating in the direction in which it is safe to cross. > > > > As others have said, for the blind. > > And up here, they have different tones for the different directions. > That way a blind person uses whichever tone for the intersection they want > to cross. > And some intersections only generate the tone if you press a button How they found the button ? In White Plains NY there are a few intersections where is very difficult to found the button even if you can see... Some of those are well masked by the newspaper auto-stores. And there are others where DON't WALK signal is permanent. greetings, Vasile -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist