Dominic Harper (NCE 22/29 August) asks what use new runaways and motorways will be when oil becomes scarce and expensive in, he suggests, 50 years.
A very good question, but it may happen much sooner.
Two years ago, the Lean Economy Initiative (LEI) predicted that world oil production would begin to decline in about 2012, and from 2009 most oil would be produced by OPEC countries in the Middle East.
Demand, however, would continue to rise, leading to large price rises.
Members of the LEI went to see the then Minister for Energy, who described their opinion as 'an extreme view'.
This bring to mind the immortal line from Yes Minister - 'never believe something until it has been officially denied'!
David Smith, Thursfield Smith Consultancy, 25 Grange Road, Shrewsbury, Shropshire SY3 9DG