Two other things.
Yellow lights and red light both mean the same thing, it's just a matter of timing.
There seems to be an excess of worry about being hit from behind while waiting at a light.
In 41 years of driving, I've had it happen to me once, and seen it once.
The guy who hit me, did so at very low speed, because he wasn't paying attention.
The one I saw, was a guy driving a car with no brakes, travelling at high speed,
and he was hit 10 seconds after the light turned red.
It doesn't happen that often, and I've never had someone trying to rush through the red hit me.
These people are usually more aware, and will lane change or stop, if you stop.
Some people here should worry more about how they approach curves and turns,
and less about intersections.
There are way too many single vehicle crashes on bikes now.
If you can't even play well by yourself, how are you going to play well with others?