Ironically we have almost the exact opposite of that at one local junction!
Simple crossroads - one road much more important than the other. Used to allow you to turn right from the main road in either direction - simply being careful. Now you cannot - there is a blocking filter which is red when straight ahead is green (or when lesser road lights are green).
Trouble is, the lights were originally designed and set up for the old system. And they are now badly placed/designed for the new system. So many people turn right when filter is red. I have seen some very close calls recently.