The A1(M) motorway, upgrading sections of the A1 road, connects the capital of England with the capital of Scotland.
The A1 is the longest numbered road in the United Kingdom, with 660 kilometers (410 miles) from London to Edinburgh. A1 passes through North London, Hatfield, Welwyn Garden City, Stevenage, Letchworth, Huntingdon, Peterborough, Grantham, Newark-upon-Trent, Retford, Doncaster, Leeds, York, Ripon, Darlington, Gateshead, Newcastle upon Tyne and Berwick-upon-Tweed.