Traffic Lights

Once again, shouldn't it all be the same? Now, I knew that they drove on the wrong side of the road, but it makes it pretty difficult for already confused Americans (and most people in the world) to drive if all of the signs and indicators are different.

It is very common to pull up to a stop light and there will be 2 lights there. One is red and one is green. Um, which one is mine?? I'm sure the standard American response is to just wait there until someone decides to honk at them. Must be my turn to go. They issue big stickers with an "L" on them for student drivers. And probably Americans.