Today's Google Doodle honors inventor Seiichi Miyake, who developed the tactile pavement that helps visually impaired people navigate street crossings and transit stations
If you've walked around a city lately, you may have noticed sections of paving with raised dots or bars, especially at transit boarding platforms or crosswalks. Those bumpy patterns in the pavement are meant to act as warning signs to visually impaired people, who may feel them through their shoes or with the tip of a cane; trained guide dogs can also recognize the bumps.
In the U.S., the Americans with Disabilities Act, passed in 1990, requires tactile paving at crosswalks where pedestrian ramps have been cut out from the curb, boarding platforms for trains, and certain other places.I am a freelance science journalist, bringing you interesting science tidbits, tales of discovery and critical looks at everything from deadly diseases to space explorat...
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