Seems a good idea.
Widen the pavements outside Fairlawn to a safe width and give priority to the traffic from Honor Oak so that junction is not clogged.
It would give a message to through traffic that this is primarily a residential road and would take the strain off the junction with the S.circ at the other end.

With traffic reduced to more local demands, perhaps our betters at Manor mt might even allow drivers sensible access to the Sainsburys car park. You never know.