A blind or partially sighted person can tell when it is safe to cross the street by listening to the sounds of the traffic. If there is a light at the intersection, it’s easy to hear cars slowing to a stop or when they move off from a stationary position. There is often a beep when the light turns green, and many traffic light polls also have a cone at the bottom, which vibrates when the light changes. If there is no light, you can simply listen to hear if there are any cars coming.
How does a blind or partially sighted person know when it’s safe to cross the street?
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