No, this is not a tweet - it is a chirp! Our community has a busy highway - US 30 - running thru it. It accommodates a variety of pedestrian crossings - some with blinking lights - others with buttons to push to explain your intentions. These latter crossings show a RED hand to halt you and presently a WHITE hand appears for ten seconds to enable you to cross without delay. But there is one intersection marked as a "blind" crossing to facilitate sightless people to navigate but since they cannot recognize the WHITE hand, the signal also begins to "chirp" like a canary for ten seconds. The first time you hear it it is startling but heartwarming to know that our disabled are being cared for in this way.
tjs
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