[quote=HI Cobra;952331 They delay the other side's greens for a couple of seconds just to keep them safe.
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They tried that in Montreal quite a few years ago at which time it became known as a "double red". The red would come on in one direction several seconds before the red would go out in the other direction but it didn't take the Montreal drivers very long to figure out that they could now run an even longer red. The result was more accidents so they switched back to the regular light rotation process.
They couldn't control speeding in the residential areas so they have put 4 way stop signs at just about every intersection. It is more difficult to speed but now virtually no one stops at stop signs any more.
Wayne