The A30 is a major road in England, running 284 miles (457 km) WSW from London to Land's End.
The A1, also known as the Great North Road, is the longest numbered road in the United Kingdom, at 410 miles (660 km). It connects London, the capital of England, with Edinburgh, the capital of Scotland. The numbering system for A-roads, devised in the early 1920s, was based around patterns of roads radiating from two hubs at London and Edinburgh. The first number in the system, A1, was given to the most important part of that system: the road from London to Edinburgh, joining the two central points of the system and linking the UK's (then) two mainland capital cities. It passes through or near north London, Hatfield, Welwyn Garden City, Stevenage, Baldock, Letchworth Garden City, Biggleswade, Eaton Socon, Buckden, Peterborough, Stamford, Grantham, Newark-on-Trent, Retford, Doncaster, Pontefract, York, Wetherby, Ripon, Darlington, Durham, Gateshead, Newcastle upon Tyne, Morpeth, Alnwick and Berwick-upon-Tweed.
The A38, parts of which are known as Devon Expressway, Bristol Road and Gloucester Road, is a major A-class trunk road in England.
The A14 is a major trunk road in England, running 127 miles (204 km) from Catthorpe Interchange, a major intersection at the southern end of the M6 and junction 19 of the M1 in Leicestershire to the Port of Felixstowe, Suffolk. The road forms part of the unsigned Euroroutes E24 and E30. It is the busiest shipping lane in East Anglia carrying anything from cars to large amounts of cargo between the UK and Mainland Europe.
The A12 is a major road in Eastern England. It runs north-east/south-west between London and the coastal town of Lowestoft in the north-eastern corner of Suffolk, following a similar route to the Great Eastern Main Line until Ipswich. A section of the road between Lowestoft and Great Yarmouth became part of the A47 in 2017. Between the junctions with the M25 and the A14, the A12 forms part of the unsigned Euroroute E30. Unlike most A roads, this section of the A12, together with the A14 and the A55, has junction numbers as if it were a motorway.
The A47 is a major trunk road in England linking Birmingham to Lowestoft, Suffolk, maintained and operated by National Highways. Most of the section between Birmingham and Nuneaton is now classified as the B4114. From Peterborough eastwards, it is a trunk road.
The A46 is a major A road in England. It starts east of Bath, Somerset and ends in Cleethorpes, Lincolnshire, but it does not form a continuous route. Large portions of the old road have been lost, bypassed, or replaced by motorway development. Between Leicester and Lincoln the road follows the course of the Roman Fosse Way, but between Bath and Leicester, two cities also linked by the Fosse Way, it follows a more westerly course.
The A45 is a major road in England. It runs east from Birmingham past the National Exhibition Centre and the M42, then bypasses Coventry and Rugby, where it briefly merges with the M45 until it continues to Daventry. It then heads to Northampton and Wellingborough before running north of Rushden and Higham Ferrers and terminating at its junction with the A14 in Thrapston.
The A419 road is a primary route between Chiseldon near Swindon at junction 15 of the M4 with the A346 road, and Whitminster in Gloucestershire, England near the M5 motorway. The A419 is managed and maintained by a private company, Road Management Group, on behalf of the UK Department for Transport.
The Oxford–Cambridge Arc is a notional arc of agricultural and urban land at about 80 kilometres radius of London, in south central England. It runs between the British university cities of Oxford and Cambridge via Milton Keynes and other settlements in Bedfordshire, Buckinghamshire, Cambridgeshire, Northamptonshire, Oxfordshire at the northern rim of the London commuter belt. It is significant only in economic geography, with little physical geography in common.
The A428 road is a major road in central and eastern England. It runs between the cities of Coventry and Cambridge by way of the county towns of Northampton and Bedford. Together with the A421,, the eastern section of the A428 forms the route between Cambridge and Oxford. The A428 was formerly part of the main route from Birmingham to Felixstowe before the A14 was fully opened in 1993.
The A421 is an important road for east/west journeys across south central England. Together with the A428, the A43 and A34, it forms the route from Cambridge through Milton Keynes to Oxford. The section between the A1 and the A5 is a national primary route.
The A17 road is a mostly single carriageway road linking Newark-on-Trent in Nottinghamshire, England, to King's Lynn in Norfolk. It stretches for a distance of 62 miles travelling across the flat fen landscapes of southern Lincolnshire and western Norfolk and links the East Midlands with East Anglia. The road is notable for its numerous roundabouts and notoriously dangerous staggered junctions and also for its most famous landmark, the Cross Keys Bridge at Sutton Bridge close to the Lincolnshire/Cambridgeshire/Norfolk borders which carries the road over the River Nene.
The A509 is a short A-class road for north–south journeys in south central England, forming the route from Kettering in Northamptonshire to the A5 in Milton Keynes, via M1 junction 14.
The A446 is an A road in Zone 4 of the Great Britain numbering scheme.
Black Cat Roundabout is on the junction between the A1 and A421 just south of St Neots. It has been reconstructed twice since 2000 and, as of 2024, a third reconstruction is underway to completely replace it with a free-flowing junction.
The City of Peterborough in East Anglia has an extensive and well integrated road network, owing partly to its status as a new town. Since the 1960s, the city has seen considerable expansion and its various suburbs are linked by a system of parkways.
Transport in Bedford provides links between the town and other parts of England. Road access to and from the town is provided by the A6 and A421 roads; the former connects the town with Kettering to the north-west, and Luton to the south, whilst the latter connects the town with Milton Keynes and the M1 to the west, and the A1 to the east via a bypass, with both being around 10 miles (16 km) away. Other roads that serve or skirt the town include the A422, which runs westwards into Milton Keynes, and the A428, which runs between Coventry and Cambridge.
The Oxford to Cambridge Expressway was a proposed grade-separated dual carriageway between the A34 near Oxford and the A14 near Cambridge, via Milton Keynes. The road would have provided an outer orbital route around London, as well as connecting major growth areas in the region.
