Chirping Crosswalk Changes Its Tune; Safety Matters

Canadian municipalities are finding themselves on opposite sides of an odd debate: whether to change the sound used to help the visually impaired
safely cross the street.

The reason for the proposed change? The chirping sound that has become commonplace at crosswalks from coast to coast sounds too much like the
northern cardinal.

Read more at
http://www.accessibilitynewsinternational.com/?p=1891