Here's a clever redesign of the traditional stoplight. It's called the Sand Glass, and it's a stoplight shaped like an hourglass.
As the time on either a red or green light runs out, it's show visually how much time is left. As it approaches time to change, it turns yellow. It's pretty clever! It'll let people know when the light's about to change, which should prevent a lot of slamming on the brakes, which would improve road safety. But is it clever enough to replace the millions of regular traffic lights installed all around the world?
Via Yanko Design