This feels a bit pointless and a waste of resources. Increasing the average speed of cars by 1 or 2 MPH doesn’t help anybody.
But I don't think even GDR got as far as installing traffic lights to control a queue to get into a queue. A queue^2 as it were. With back-pressure on the back-pressure! I wonder if they ever see resonance on the back-pressure-back-pressure control system for the queue-queue?