I'll ask you since I'd like to know: I've heard that one of the most positive innovations for traffic lights is the inclusion of a "timer bar". A bar light along side the normal traffic signals indicates how long the single has until it changes. I've heard that the places it was tested vastly reduced the number of collisions and injuries. Is there any truth to that?
I don't know about timer bars, but in Bangkok they have countdown timers for both green and red. You always know exactly how many seconds until the light changes at a glance. Better than a timer bar, I would think.