Would an Hourglass Traffic Light Work Better? Mark Frauenfelder found this interesting new traffic light design by Thanva Tivawong. LED lights trickle down like sand in a virtual hourglass, letting you know when the light will change.
33 Insanely Clever Innovations That Need To Be Everywhere Already. Traffic lights with countdown indicators. Seriously, while stopped at a light today, I was thinking of how useful something like this would be.