Major roads in the area include the A1 (Gateshead Newcastle Western Bypass), stretching north to Edinburgh and south to London; the A19 heading south past Sunderland and Middlesbrough to York and Doncaster; the A69 heading west to Carlisle; the A696, which becomes the A68 heads past Newcastle Airport and up through central Northumberland and central Scottish Borders, the A167, the old "Great North Road", heading south to Gateshead, Chester-le-Street, Durham and Darlington; and the A1058 "Coast Road", which runs from Jesmond to the east coast between Tynemouth and Cullercoats. Many of these designations are recent—upon completion of the Western Bypass, and its designation as the new line of the A1, the roads between this and the A1's former alignment through the Tyne Tunnel were renumbered, with many city centre roads changing from a 6-prefix to their present 1-prefix numbers. In November 2011 the capacity of the Tyne Tunnel was increased when a project to build a second road tunnel and refurbish the first tunnel was completed.