M55 motorway meet junction 4, where the motorway ends and becomes the A5230. The western part of the M55, and the first few hundred metres of the A5230, occupy the route of the old Blackpool Branch railway line. The first motorway constructed in Great Britain was the M6 Preston Bypass, opened in 1958. This ran from the current M6 junction 29 to the M55 junction 1. It was built as a two-lane route. In 1965 the M6 was extended north from what is the current day junction 32 to meet the Lancaster Bypass, and the M6 junction was rebuilt to its current
Transport in Preston Lancashire) and M61 (Preston - Manchester), which connect to the M6 south of Preston. Preston has many major A roads running through it. The longest one is the A6, which comes from Lancaster in the North, runs down the centre and goes South-East towards Chorley. The A6 connects Carlisle to Luton, being the second longest road in Britain. Another A road that runs through Preston is the A59 which comes from the South West from Liverpool towards Clitheroe in the North East. Other A roads converging in Preston or its outskirts include the A49, A582, A583, A584, A675, A677, A5072