Sir – John Simms (Letters, February 4) is absolutely right about the buses going to London and to the airports. But he does not go quite far enough.

These buses do not have to start out from Gloucester Green at all.

They can start and finish at the park-and-ride stations. Just think about that. No London or airport coaches in the city at all.

So how do passengers get to the coaches? The way lots of people do anyway — via Thornhill park-and-ride. In the new system, coaches would circle all the park-and-rides before leaving from Thornhill for London and the airports. Why not?

Mary Hodges, Oxford