A3 road

A3 road. The A3 is a major trunk road in England, connecting the capital city of London to the vital naval port of Portsmouth on the south coast. Running for approximately 68.5 miles (110.2 km) through the counties of Hampshire, Surrey, and Greater London, it serves as a crucial artery for traffic between the south-east and the capital. Historically following the line of the Portsmouth Road, it has been progressively upgraded, with significant sections now forming part of the National Highways network.

Route description

Beginning at its southern terminus at the Portsmouth junction with the M275 motorway, the A3 heads north through the South Downs National Park, passing near the market town of Petersfield. It continues through Hindhead, where it utilizes the Hindhead Tunnel to bypass the Devil's Punch Bowl, a noted beauty spot. The road then traverses the Surrey Hills AONB, serving Guildford before entering the suburban sprawl of Greater London. Its final stretch runs through areas like Kingston upon Thames and Wimbledon, culminating at its northern terminus at the London junction with the A201 at the Monument to the Great Fire of London.

History

The road's origins lie in the medieval Portsmouth Road, a turnpike trust route established to improve travel to the important naval dockyards. It was designated as the A3 in the Ministry of Transport's 1922 road numbering scheme. Major 20th-century improvements included the construction of the Kingston Bypass in the 1920s, one of England's first bypasses. Later, the Hog's Back section near Guildford was realigned and improved. The most significant modern engineering project was the opening of the Hindhead Tunnel in 2011, which removed traffic from the AONB and the Site of Special Scientific Interest at the Devil's Punch Bowl.

Junctions and landmarks

Key interchanges include the junction with the A27 near Portsmouth, the intersection with the A31 at the Hog's Back, and the complex junction with the M25 at Wisley Interchange. Notable landmarks along its length include the historic Ripley village, the Royal Surrey County Hospital in Guildford, and the Hampton Court Palace located nearby. In London, it passes Clapham Common and runs adjacent to Wandsworth Prison before reaching its terminus in the City of London.

Future developments

Proposed upgrades focus on improving capacity and safety at major pinch points. National Highways has investigated potential improvements to the Wisley Interchange with the M25, one of the busiest junctions in the country. There are also long-term considerations for enhancing the stretch through the Tolworth area, and for better integrating the road with sustainable transport plans as part of the Department for Transport's Road Investment Strategy. Any future works will require careful consultation with local authorities like Surrey County Council and environmental bodies due to the road's proximity to protected landscapes.

Cultural references

The road has featured in various cultural works, notably in the opening sequences of the television series The Sweeney, which showcased high-speed chases along its London sections. It is also mentioned in the literature of P.G. Wodehouse, whose characters often traveled the Portsmouth Road. The Devil's Punch Bowl, which the road now tunnels beneath, has been a subject in writings by authors such as George Meredith and is a popular location for productions by the BBC Natural History Unit. The historic coaching inns along its route, like the Bush Hotel in Farnham, feature in many accounts of travel in the Georgian era.

Category:A roads in Great Britain Category:Transport in Hampshire Category:Transport in Surrey Category:Transport in London Category:Portsmouth