Sir – Thornhill park-and-ride would benefit from a new, simple steel first-floor deck over the existing car park, paid for by a charge for parking — say £2 or £3 per day — to be paid by commuters into Oxford and those travelling by coach to London.

In both cases, the environment would benefit from greater use of public transport. City and county should co-operate quickly to solve the overcrowding problems.

Mike Gotch, City councillor, Wolvercote