More thoughts on APS

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I guess I'm going to share just a little bit more because now I'm just all sorts of curious and the thinking juices are definitely flowing...I read that even though it is impractical to install to APS pushbuttons along with the speakers on a corner with two separate poles it is recommended for there to be a verbal message saying it was okay to cross the cross walk. Apparently it would say whatever street it was that someone who is visually impaired was trying to cross and then say walk sign is on to cross, (that specific crosswalk).
This also makes me think more about my last post too because even though someone who is visually impaired can hear the bird chirping how do they know exactly what street they are on unless they've crossed the same one tons of times before. It's amazing to me how much you can open yourself up to in the world when you don't even realize stuff like this everyday.
When any of you read this I'd be interested to know what sounds you've come across when crossing a crosswalk if any sounds at all??