Having red lights transition to yellow before switching to green is such an obvious optimization, I don't know why every country hasn't adopted it as the standard.
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It is true, why don't they do that. While some parts of Japan have pedestrian-vehicle separated traffic signals, I think that could also be a good countermeasure.
The actual optimization is roundabouts.
Is that the “gentlemen start your engines” light?
Seems like it could cause confusion in certain situations if yellow precedes both the stop and the go
It doesn’t. The other light turns red before.
In some countries orange (quite similar to yellow) means you can pass but you don't have priority, that can lead to confusion IMO
It could be red and Orange so orange meaning stays clear. Then you have An issue though if the red light is broken. Its not that clear an optimization...
This. 👆
OK, so there's one light that changes color, you're at a sidestreet intersection with a stop sign, turn right, and see a yellow light. Do you assume turning red or green next?