A23 (Great Britain)

A23 (Great Britain)
Country	GBR
Route	23
Length km	72
Termini	London – Brighton
Counties	Greater London, Surrey, West Sussex
Cities	Croydon, Crawley, Haywards Heath, Worthing, Brighton and Hove

A23 (Great Britain) is a primary A road running from London to Brighton, linking major urban centres and transport hubs in Greater London, Surrey, and West Sussex. The route connects outer London Borough of Croydon suburbs with the M25 motorway and coastal destinations, intersecting key corridors such as the A205 (South Circular Road), A27 road, and access to Gatwick Airport. It serves commuter, freight and leisure traffic between Victoria Station, Brighton Railway Station, and regional centres like Crawley and Haywards Heath.

Route

The A23 begins in central London near Victoria Station and proceeds south through Pimlico, Clapham, and the London Borough of Lambeth before reaching Croydon. South of Croydon it crosses the M23 motorway and meets the M25 motorway near Coulsdon, then continues through North Downs fringes into Surrey and West Sussex. The road passes Salfords, Horley, and close to Gatwick Airport before proceeding to Crawley, Horsham environs, Haywards Heath and then descends the South Downs to the coastal conurbation of Brighton and Hove. Along its length the A23 intersects radial and orbital arteries including the A24 road, A264 road, A272 road, and the A27 road at Brighton.

History

The A23 follows ancient trackways and turnpike trusts established in the 18th and 19th centuries connecting South London to Brighton, a fashionable resort visited by figures such as George IV and actors associated with Drury Lane Theatre. Victorian era improvements paralleled railway expansion by companies like the London, Brighton and South Coast Railway, altering coaching routes used by mail and stagecoach services. Twentieth-century motor traffic demands led to road renumbering schemes overseen by the Ministry of Transport (United Kingdom) and major engineering works during the post-war period coordinated with projects such as the construction of the M23 motorway and the development of Gatwick Airport as a national hub. Recent decades have seen interventions influenced by agencies like Highways England, regional planning documents from West Sussex County Council, and initiatives linked to Transport for London.

Junctions and Major Intersections

Notable junctions include the A23’s origin at the A302 near Victoria linking to Westminster routes, the interchange with the A205 (South Circular Road) and entry to the Croydon Flyover near Central Croydon, the grade-separated crossing with the M23 motorway providing access to Junction 7, and the M25 motorway junction serving Coulsdon North and Coulsdon South. Other major intersections occur at Horley near the B2036, the A23/A264 junction serving Crawley, and the connection to the A272 road and A27 road approaching Brighton where links provide access to Brighton Marina and Brighton Pier.

Traffic and Safety

Traffic volumes on the A23 vary from heavy urban flows in London during peak commuter periods to seasonal leisure peaks toward Brighton associated with events at Brighton Festival and sporting fixtures at American Express Community Stadium. Freight movements use sections near Gatwick Airport and distribution hubs around Crawley, creating mixed traffic profiles monitored by agencies including Surrey County Council and West Sussex County Council. Safety interventions have targeted accident clusters near junctions with histories involving emergency responses by London Ambulance Service and policing by the Metropolitan Police Service and Sussex Police. Measures have included speed limit reviews, junction signalisation influenced by consultants such as AECOM, and local casualty reduction schemes reflecting guidance from the Department for Transport.

Public Transport and Cycling Integration

The A23 corridor runs parallel to heavy rail services provided by operators associated with Brighton Main Line stations like Gatwick Airport station, Crawley station, and Haywards Heath railway station, enabling interchange with bus networks operated by companies such as Metrobus (South East) and Stagecoach South. Cycle infrastructure projects have been promoted by organisations including Sustrans and local cycling commissioners in Brighton and Hove and Croydon, integrating segregated lanes and quietway schemes where feasible. Park-and-ride proposals, rail interchange improvements coordinated with Network Rail, and bus priority measures have been discussed in regional transport strategies prepared with input from bodies like the South East Local Enterprise Partnership.

Planned Developments and Upgrades

Planned interventions include capacity and safety upgrades influenced by strategic plans from Highways England and local authority programmes by West Sussex County Council and Surrey County Council. Proposals have related to junction redesigns near Gatwick Airport to improve access for airport-linked logistics operators, corridor improvements to reduce congestion for commuters to London Victoria and Brighton, and multimodal schemes connecting to Brighton Main Line stations. Funding and delivery discussions have involved stakeholders such as the Department for Transport, regional MPs representing constituencies like Crawley (UK Parliament constituency) and Brighton Pavilion (UK Parliament constituency), and consultations with resident associations in Coulsdon and Haywards Heath.

Cultural and Economic Impact

The A23 underpins economic links between London and coastal attractions in Brighton and Hove, supporting sectors from tourism associated with Brighton Festival and Brighton Pride to aviation-linked employment at Gatwick Airport and commercial estates in Crawley. It has influenced suburban growth in boroughs like Croydon and market towns such as Haywards Heath, shaping retail centres including those near Old Town, Brighton and employment zones around Manor Royal, Crawley. Cultural references include appearances in regional literature and media tied to the south coast and London commuter narratives; the corridor has featured in planning debates alongside landmark institutions such as University of Sussex and Royal Sussex County Hospital reflecting its role in facilitating access to health, education, and cultural venues.

Category:Roads in England Category:Transport in London Category:Transport in West Sussex