Same idea moments apart there Davey
Not usually one to make such suggestions, as in a lot of cases parking is pretty unfair and limited, however in this case I have to agree.
There is a perfectly good car park next to the station if people want to pick up or drop off without joining the South Circ (which is understandable)
There is plenty of parking outside the cab office for 1-2 cabs to wait in a taxi rank style system to pick up fares from the office itself.