The A40 is a trunk road which runs between London and Goodwick (Fishguard), Wales, and officially called The London to Fishguard Trunk Road (A40) in all legal documents and Acts. Much of its length within England has been superseded by motorways, such as the M40, and has lost its trunk road status, though it retains it west of Gloucester, including its length within Wales. It is approximately 260 miles (420 km) long. The eastern section from Denham, Buckinghamshire to Wheatley, Oxfordshire is better served by the M40 and its former function of linking London with Cheltenham and Gloucester has been taken by the M4, A419 and A417 via Swindon.
The A4 is a major road in England from Central London to Avonmouth via Heathrow Airport, Reading, Bath and Bristol. It is historically known as the Bath Road with newer sections including the Great West Road and Portway. The road was once the main route from London to Bath, Bristol and the west of England and formed, after the A40, the second main western artery from London.
The A6 is one of the main north–south roads in England. It runs from Luton in Bedfordshire to Carlisle in Cumbria, although it formerly started at a junction with the A1 at Barnet. It is the fourth longest numbered road in Britain; only the A1, A38 and A30 are longer.
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 A57 is a major road in England. It runs east from Liverpool to Lincoln via Warrington, Salford and Manchester, and then through the Pennines over the Snake Pass (between the high moorlands of Bleaklow and Kinder Scout), around the Ladybower Reservoir, through Sheffield and past Worksop. Between Liverpool and Glossop, the road has largely been superseded by the M62, M602 and M67 motorways. Within Manchester a short stretch becomes the Mancunian Way, designated A57(M).
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 North Circular Road is a 25.7-mile-long (41.4 km) ring road around Central London in England. It runs from Chiswick in the west to Woolwich in the east via suburban North London, connecting various suburbs and other trunk roads in the region. Together with its counterpart, the South Circular Road, it mostly forms a ring road around central London, except for crossing of the River Thames, which is done by the Woolwich Ferry.
The A10 is a major road in England which runs between The City of London and King's Lynn in Norfolk.
The A24 is a major road in England that runs for 53.2 miles (85.6 km) from Clapham in south-west London to Worthing on the English Channel in West Sussex via the suburbs of south-west London, as well as through the counties of Surrey and West Sussex.
The A52 is a major road in the East Midlands, England. It runs east from a junction with the A53 at Newcastle-under-Lyme near Stoke-on-Trent via Ashbourne, Derby, Stapleford, Nottingham, West Bridgford, Bingham, Grantham, Boston and Skegness to the east Lincolnshire coast at Mablethorpe. It is approximately 147 miles (237 km) long.
The A64 is a major road in North and West Yorkshire, England, which links Leeds, York and Scarborough. The A64 starts as the A64(M) ring road motorway in Leeds, then towards York it becomes a high-quality dual carriageway until it is east of the city, where it becomes a single carriageway for most of its route to Scarborough.
The A563 is the designation for the ring road of Leicester, England. It forms a near-complete circuit except for a gap of around 2.2 miles (3.5 km) in the east of the city. An indirect route linking the gap involves the (A47) A6030, and A6. The A563 was formerly referred to as the Outer Ring.
The A249 is a road in Kent, England, running from Maidstone to Sheerness on the Isle of Sheppey. It mainly functions as a link between the M2 and M20 motorways, and for goods vehicle traffic to the port at Sheerness.
The West Cross Route (WCR) is a 0.75 mile segment of dual carriageway of the A3220 route in West London running north–south between the northern elevated roundabout junction with the western end of Westway (A40) and the southern Holland Park Roundabout. It runs through Shepherd's Bush to its west and Notting Hill to its east.
The A120 is an A-road in England, which runs between Puckeridge in Hertfordshire and Harwich in Essex.
The A6177 is a ring road around Bradford in West Yorkshire, England. It is mostly formed from existing roads and save for its southern section is single-carriageway.
The A727 road in Scotland runs from East Kilbride in South Lanarkshire, through East Renfrewshire, to Junction 3 of the M77 motorway in Glasgow.
The A607 is an A road in England that starts in Belgrave, Leicester and heads northeastwards through Leicestershire and the town of Grantham, Lincolnshire, terminating at Bracebridge Heath, a village on the outskirts of Lincoln. It is a primary route from Thurmaston to the A1 junction at Grantham.
The A40 is a major trunk road connecting London to Fishguard, Wales. The A40 in London starts in the City of London and passes through six London Boroughs: Camden, Westminster, Kensington & Chelsea, Hammersmith & Fulham, Ealing and Hillingdon, to meet the M40 motorway junction 1 at Denham, Buckinghamshire.
The A724 road in Scotland runs within South Lanarkshire between Rutherglen and Hamilton. It follows an ancient route which is marked on William Roy's Lowland Map of Scotland (1755) with only minor deviations from its modern course.
A484 
