So your'e stuck at the traffic light and have no idea on how much time is going to take for you to take until it goes green, thanks to the designer Thanva Tivawong, the saint glass traffic light solves the problem in a very fantastic way.

As the time on either a RED light or GREEN light runs out, the sand glass time shows visually how much time is left. As it approaches time to change, the light turns YELLOW.