A404 road
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| A404 road | |
|---|---|
 | |
| Name | A404 road |
| Country | England |
| Route | 404 |
| Direction a | South |
| Terminus a | Maidenhead |
| Direction b | North |
| Terminus b | Amersham |
| Major junctions | M4, A4, A40, M40 |
A404 road The A404 road is a primary route in southern England linking Maidenhead with Amersham and serving Windsor, High Wycombe, Taplow and the Marlow corridor. It provides strategic connections to the M4 motorway, M40 motorway, A4 road and A40 road, and interfaces with rail nodes such as Maidenhead railway station and High Wycombe railway station. The route traverses parts of Berkshire, Buckinghamshire, and the Royal Borough of Windsor and Maidenhead, passing notable landmarks including Cliveden House, Blenheim Palace is farther afield but linked via connecting roads, and the landscape of the Chiltern Hills.
Route
The road begins near Maidenhead close to the interchange with the M4 motorway and the A4 at the Taplow area, proceeding north through Taplow and skirting the riverside near River Thames and the estate of Cliveden House. It continues toward Bourne End and Marlow, crossing the River Thames near Marlow Bridge and linking to the A4155 road and local urban centres including Wycombe Lane and High Wycombe. North of High Wycombe the route climbs into the Chiltern Hills, passing Cheltenham and Hazlemere suburbs before joining the A40 road and crossing or meeting the M40 motorway near Stokenchurch and terminating at Amersham adjacent to Chalfont St Giles and Chenies.
History
The corridor originated from historic coaching routes between London and Oxfordshire towns, serving the coaching inns used by travellers to Oxford and Windsor Castle in the Georgian era. Modern numbering was applied in the 1920s by the Ministry of Transport during the national classification that also designated routes such as the A4 road and A40 road. Post‑war improvements paralleled projects like the construction of the M4 and later bypass schemes influenced by the Bourne End bypass proposals and local resistance similar to campaigns around Green Belt preservation and associations like the National Trust which owns properties on the line. Major upgrades include junction remodelling to connect with the M40 motorway and carriageway widenings influenced by regional planning authorities such as the Buckinghamshire County Council.
Junctions and connections
Key interchanges include the southern junction with the A4 road and interchange to the M4 motorway near Taplow and Burnham, a crossing with the A4155 road at Marlow, and grade-separated links to the A40 road and M40 motorway acting as arterial connections to Oxford, Reading, and London. The route intersects with local roads serving towns like Beaconsfield, Hazlemere, Princes Risborough, and Chesham and connects to rail services at Maidenhead railway station and High Wycombe railway station which are on routes operated by Great Western Railway and Chiltern Railways respectively. Nearby motorway links provide access to long-distance corridors toward Bristol, Birmingham, Heathrow Airport, and Stansted Airport via complementary routes such as the M25 motorway.
Traffic and safety
Traffic volumes on the road reflect commuter flows between High Wycombe and Maidenhead and strategic freight movements linking the M4 motorway and M40 motorway. Peak congestion occurs near urban centres and junctions serving retail areas like Cressex and industrial estates such as those in Bourne End. Safety records have prompted interventions modelled on national initiatives similar to those advocated by Road Safety Foundation and legislative changes following incidents highlighted in national debates around highway safety involving organisations like the Department for Transport and local enforcement by Thames Valley Police. Accident blackspots have been addressed using engineering measures inspired by projects on comparable routes like the A3 road and A40 road.
Public transport and cycling
The A404 corridor supports bus services operated by companies including Arriva UK Bus, FirstGroup subsidiaries and local operators linking towns along the route to rail hubs such as London Paddington and Marylebone via cross‑county connections. Cycle infrastructure improvements have been advocated by groups like Sustrans and local cycling clubs, with designated cycleways and shared-use paths near Maidenhead and through the Chilterns Area of Outstanding Natural Beauty to promote active travel consistent with regional policies from entities like the Wycombe District Council and Buckinghamshire Council.
Future developments
Planned and proposed schemes involve junction capacity improvements, safety enhancements and active travel investments promoted by regional transport plans from Transport for the South East and strategic documents produced by Buckinghamshire Council and the Royal Borough of Windsor and Maidenhead. Proposals have been discussed in the context of wider initiatives such as improvements to the M4 corridor and sustainable transport strategies aligned with national commitments like those outlined by the Department for Transport and environmental organisations including Friends of the Earth. Localised projects may include bypass proposals, drainage and resurfacing programmes, and integration with rail and cycling networks influenced by funding streams from central government allocations and regional devolved bodies.
Category:Roads in England Category:Transport in Berkshire Category:Transport in Buckinghamshire