The UK's last, great, expensive, short roads

"[...] A3 tunnel at Hindhead in Surrey. A four-mile section of dual carriageway is being added, but the vast bulk of the £371m cost is concentrated on the 1.2 mile (1.9km) tunnel. It is the longest road, under land rather than a river, in the UK, costing around £300m, equivalent to £142,000 per yard (£155,000 per metre). "

http://www.bbc.co.uk/news/magazine-13924687

Comments:

"The 'Free' motorway network has seriously undermined the development of a modern rail network which is the logical way to tranport most frieght and passengers around an island like the UK. Subsidies to air travel (such as no tax on kerosene) have also undermined rail. Rail rocks! Meanwhile local roads have become a nightmare of potholes and roadworks, and we will always need these."