Lacb, I use Honour oak all the time. I once had to wait four changes of lights before I could be on my way. I didnt mind, I was sat in my car, radio was on. Car is a tree hugging, bunny kissing eco mobile the engine was off.
We live in london, it is always chocked. Compare the traffic during term time and on holidays. Holidays means no cars, school days means we all sit in traffic.
My point is not the congestion, it is that using the likes of Manor Mount as two way streets, it was made one way as it was dangerous.