A40 road in London
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The A40 is a major trunk road connecting London to
Fishguard Fishguard ( cy, Abergwaun, meaning "Mouth of the River Gwaun") is a coastal town in Pembrokeshire, Wales, with a population of 3,419 in 2011; the community of Fishguard and Goodwick had a population of 5,407. Modern Fishguard consists of two p ...
,
Wales Wales ( cy, Cymru ) is a country that is part of the United Kingdom. It is bordered by England to the east, the Irish Sea to the north and west, the Celtic Sea to the south west and the Bristol Channel to the south. It had a population in ...
. The A40 in London passes through seven
London Borough The London boroughs are the 32 local authority districts that together with the City of London make up the administrative area of Greater London; each is governed by a London borough council. The present London boroughs were all created at ...
s: the
City of London The City of London is a city, ceremonial county and local government district that contains the historic centre and constitutes, alongside Canary Wharf, the primary central business district (CBD) of London. It constituted most of London f ...
, Camden,
Westminster Westminster is an area of Central London, part of the wider City of Westminster. The area, which extends from the River Thames to Oxford Street, has many visitor attractions and historic landmarks, including the Palace of Westminster, B ...
, Kensington & Chelsea,
Hammersmith & Fulham The London Borough of Hammersmith and Fulham () is a London borough in West London and which also forms part of Inner London. The borough was formed in 1965 from the merger of the former Metropolitan Boroughs of Hammersmith and Fulham. The bor ...
,
Ealing Ealing () is a district in West London, England, west of Charing Cross in the London Borough of Ealing. Ealing is the administrative centre of the borough and is identified as a major metropolitan centre in the London Plan. Ealing was his ...
and
Hillingdon Hillingdon is an area of Uxbridge within the London Borough of Hillingdon, centred 14.2 miles (22.8 km) west of Charing Cross. It was an ancient parish in Middlesex that included the market town of Uxbridge. During the 1920s the civ ...
, to meet the
M40 motorway The M40 motorway links London, Oxford and Birmingham in England, a distance of approximately . The motorway is dual three lanes except for junction 1A to junction 3 (which is dual four lanes) a short section in-between the exit and entry slip-r ...
junction 1 at
Denham, Buckinghamshire Denham is a village and civil parish in the unitary authority of Buckinghamshire, England, approximately from central London, northwest of Uxbridge and just north of junction 1 of the M40 motorway. The name is derived from the Old English for ...
. The road has been re-routed several times in the last 100 yearspart of the route of the London section of the A40 was laid out in the 1920s and 1930s when Western Avenue was builtnow most of it is
grade-separated In civil engineering (more specifically highway engineering), grade separation is a method of aligning a junction of two or more surface transport axes at different heights (grades) so that they will not disrupt the traffic flow on other tr ...
,
dual carriageway A dual carriageway ( BE) or divided highway ( AE) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are ...
(
divided highway A dual carriageway ( BE) or divided highway ( AE) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are ...
). In the 1960s Westway was constructed, easing traffic access to and from the centre of the city. The A40 links the City of London and the West End to the
M40 motorway The M40 motorway links London, Oxford and Birmingham in England, a distance of approximately . The motorway is dual three lanes except for junction 1A to junction 3 (which is dual four lanes) a short section in-between the exit and entry slip-r ...
and
M25 motorway The M25 or London Orbital Motorway is a major road encircling most of Greater London. The motorway is one of the most important roads in the UK and one of the busiest. Margaret Thatcher opened the final section in 1986, making the M25 the lon ...
. The route is called The London to Fishguard Trunk Road (A40) in legal documents and acts.


City of LondonCity of Westminster

The A40 officially starts where St. Martin's Le Grand meets
Cheapside Cheapside is a street in the City of London, the historic and modern financial centre of London, which forms part of the A40 London to Fishguard road. It links St. Martin's Le Grand with Poultry. Near its eastern end at Bank junction, whe ...
. Here it shares a terminus with the A1, the main north London radial. First forming Newgate Street and then through
Holborn Holborn ( or ) is a district in central London, which covers the south-eastern part of the London Borough of Camden and a part ( St Andrew Holborn Below the Bars) of the Ward of Farringdon Without in the City of London. The area has its ro ...
to
Holborn Viaduct Holborn Viaduct is a road bridge in London and the name of the street which crosses it (which forms part of the A40 route). It links Holborn, via Holborn Circus, with Newgate Street, in the City of London financial district, passing ov ...
. This viaduct carries the A40 over the A201 (leading to
Blackfriars Bridge Blackfriars Bridge is a road and foot traffic bridge over the River Thames in London, between Waterloo Bridge and Blackfriars Railway Bridge, carrying the A201 road. The north end is in the City of London near the Inns of Court and Temple Ch ...
) and on to Holborn Circus where the A40 crosses the terminus of the A4. The A40 here is named
High Holborn High Holborn ( ) is a street in Holborn and Farringdon Without, Central London, which forms a part of the A40 route from London to Fishguard. It starts in the west at the eastern end of St Giles High Street and runs past the Kingsway and S ...
. One of the four
Inns of Court The Inns of Court in London are the professional associations for barristers in England and Wales. There are four Inns of Court – Gray's Inn, Lincoln's Inn, Inner Temple and Middle Temple. All barristers must belong to one of them. They have ...
,
Gray's Inn The Honourable Society of Gray's Inn, commonly known as Gray's Inn, is one of the four Inns of Court (professional associations for barristers and judges) in London. To be called to the bar in order to practise as a barrister in England and W ...
, is on the north side of the road. Another,
Lincoln's Inn The Honourable Society of Lincoln's Inn is one of the four Inns of Court in London to which barristers of England and Wales belong and where they are called to the Bar. (The other three are Middle Temple, Inner Temple and Gray's Inn.) Lincol ...
, is on the south side. The road is now in the Borough of Camden. Leaving Holborn, the A40 crosses into the
City of Westminster The City of Westminster is a city and borough in Inner London. It is the site of the United Kingdom's Houses of Parliament and much of the British government. It occupies a large area of central Greater London, including most of the West En ...
, forming New Oxford Street. The
British Museum The British Museum is a public museum dedicated to human history, art and culture located in the Bloomsbury area of London. Its permanent collection of eight million works is among the largest and most comprehensive in existence. It docum ...
is close at this point. After crossing the southern end of
Tottenham Court Road Tottenham Court Road (occasionally abbreviated as TCR) is a major road in Central London, almost entirely within the London Borough of Camden. The road runs from Euston Road in the north to St Giles Circus in the south; Tottenham Court Road t ...
(the A400) at
St Giles Circus St Giles Circus is a road junction in the St Giles district of the West End of London at the eastern end of Oxford Street, where it connects with New Oxford Street, Charing Cross Road and Tottenham Court Road, which it is more often referred to ...
, the A40 becomes
Oxford Street Oxford Street is a major road in the City of Westminster in the West End of London, running from Tottenham Court Road to Marble Arch via Oxford Circus. It is Europe's busiest shopping street, with around half a million daily visitors, and ...
. Oxford Street is Europe's busiest shopping street. Many chain stores have their flagship store on the street, including
John Lewis John Robert Lewis (February 21, 1940 – July 17, 2020) was an American politician and civil rights activist who served in the United States House of Representatives for from 1987 until his death in 2020. He participated in the 1960 Nashville ...
,
Debenhams Debenhams plc was a British department store chain operating in the United Kingdom, Denmark and the Republic of Ireland. It was founded in 1778 as a single store in London and grew to 178 locations across those countries, also owning the Danish ...
,
Marks and Spencers Marks and Spencer Group plc (commonly abbreviated to M&S and colloquially known as Marks's or Marks & Sparks) is a major British multinational retailer with headquarters in Paddington, London that specialises in selling clothing, beauty, home ...
,
House of Fraser House of Fraser (also operating as Frasers) is a British department store group with 44 locations across the United Kingdom, which is now part of Frasers Group. It was established in Glasgow, Scotland in 1849 as Arthur and Fraser. By 1891, it ...
and
Selfridges Selfridges, also known as Selfridges & Co., is a chain of high-end department stores in the United Kingdom that is operated by Selfridges Retail Limited, part of the Selfridges Group of department stores. It was founded by Harry Gordon Selfridg ...
. There are several tube stations along the road: the Central line runs under
Oxford Street Oxford Street is a major road in the City of Westminster in the West End of London, running from Tottenham Court Road to Marble Arch via Oxford Circus. It is Europe's busiest shopping street, with around half a million daily visitors, and ...
and is London Underground's second busiest line with 180 million passengers a year. The busiest
stations Station may refer to: Agriculture * Station (Australian agriculture), a large Australian landholding used for livestock production * Station (New Zealand agriculture), a large New Zealand farm used for grazing by sheep and cattle ** Cattle statio ...
are
Tottenham Court Road Tottenham Court Road (occasionally abbreviated as TCR) is a major road in Central London, almost entirely within the London Borough of Camden. The road runs from Euston Road in the north to St Giles Circus in the south; Tottenham Court Road t ...
,
Oxford Circus Oxford Circus is a road junction connecting Oxford Street and Regent Street in the West End of London. It is also the entrance to Oxford Circus tube station. The junction opened in 1819 as part of the Regent Street development under John ...
, and
Bond Street Bond Street in the West End of London links Piccadilly in the south to Oxford Street in the north. Since the 18th century the street has housed many prestigious and upmarket fashion retailers. The southern section is Old Bond Street and the ...
, which provide access to five tube lines. The road forms the northern boundary of
Soho Soho is an area of the City of Westminster, part of the West End of London. Originally a fashionable district for the aristocracy, it has been one of the main entertainment districts in the capital since the 19th century. The area was deve ...
; the main theatres and cinemas are located to the south near
Leicester Square Leicester Square ( ) is a pedestrianised square in the West End of London, England. It was laid out in 1670 as Leicester Fields, which was named after the recently built Leicester House, itself named after Robert Sidney, 2nd Earl of Leicest ...
. The area contains a large number of clubs, bars and music venues;
Wigmore Hall Wigmore Hall is a concert hall located at 36 Wigmore Street, London. Originally called Bechstein Hall, it specialises in performances of chamber music, early music, vocal music and song recitals. It is widely regarded as one of the world's leadi ...
on
Wigmore Street Wigmore Street is a street in the City of Westminster, in the West End of London. The street runs for about 600 yards parallel and to the north of Oxford Street between Portman Square to the west and Cavendish Square to the east. It is named aft ...
is a notable example.
Centre Point Centre Point is a building in Central London, comprising a 34-storey tower; a 9-storey block to the east including shops, offices, retail units and maisonettes; and a linking block between the two at first-floor level. It occupies 101–103 ...
was one of London's first skyscrapers. The A40 continues as
Oxford Street Oxford Street is a major road in the City of Westminster in the West End of London, running from Tottenham Court Road to Marble Arch via Oxford Circus. It is Europe's busiest shopping street, with around half a million daily visitors, and ...
to
Marble Arch The Marble Arch is a 19th-century white marble-faced triumphal arch in London, England. The structure was designed by John Nash in 1827 to be the state entrance to the cour d'honneur of Buckingham Palace; it stood near the site of what is toda ...
at the north-east corner of Hyde Park. Nearby is
Speakers' Corner A Speakers' Corner is an area where open-air public speaking, debate, and discussion are allowed. The original and best known is in the northeast corner of Hyde Park in London, England. Historically there were a number of other areas desig ...
, where people are generally allowed considerable
freedom of speech Freedom of speech is a principle that supports the freedom of an individual or a community to articulate their opinions and ideas without fear of retaliation, censorship, or legal sanction. The right to freedom of expression has been recogni ...
, although the police occasionally intervene. Nearby is the site of
Tyburn Tyburn was a Manorialism, manor (estate) in the county of Middlesex, one of two which were served by the parish of Marylebone. The parish, probably therefore also the manor, was bounded by Roman roads to the west (modern Edgware Road) and sout ...
gallows A gallows (or scaffold) is a frame or elevated beam, typically wooden, from which objects can be suspended (i.e., hung) or "weighed". Gallows were thus widely used to suspend public weighing scales for large and heavy objects such as sacks ...
, where public executions took place from 1388 to 1793. At Marble Arch is a major road junction of Oxford Street,
Park Lane Park Lane is a dual carriageway road in the City of Westminster in Central London. It is part of the London Inner Ring Road and runs from Hyde Park Corner in the south to Marble Arch in the north. It separates Hyde Park to the west from ...
( A4202), Bayswater Road ( A402) and
Edgware Road Edgware Road is a major road in London, England. The route originated as part of Roman Watling Street and, unusually in London, it runs for 10 miles in an almost perfectly straight line. Forming part of the modern A5 road, Edgware Road undergoes ...
( A5). The A40 has taken three courses from here over the last thirty years. The last change was in 2000, when Westway lost its motorway status ( A40(M)) and became the A40. Now that Westway is part of the A40, the road no longer follows its western route from the Marble Arch roundabout. To continue on the A40 from Oxford Street, turn northwards into Portman Street ( A41)which continues as Gloucester Placeto join the London Inner Ring Road to the west of Baker Street Underground station. Turning left onto the A501 (Marylebone Road) links with the Marylebone Flyover and the start of Westway.


Westway

Westway is a long, elevated
dual carriageway A dual carriageway ( BE) or divided highway ( AE) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are ...
section of the A40 in west London. It runs from
Paddington Paddington is an area within the City of Westminster, in Central London. First a medieval parish then a metropolitan borough, it was integrated with Westminster and Greater London in 1965. Three important landmarks of the district are Padd ...
to
North Kensington North Kensington is an area of west London. It is north of Notting Hill and south of Kensal Green and in the Royal Borough of Kensington and Chelsea. The names North Kensington and Ladbroke Grove describe the same area. North Kensington is wh ...
. It was constructed between 1964 and 1970 to relieve congestion at
Shepherd's Bush Shepherd's Bush is a district of West London, England, within the London Borough of Hammersmith and Fulham west of Charing Cross, and identified as a major metropolitan centre in the London Plan. Although primarily residential in character ...
, with traffic from Western Avenue struggling to enter central London along too narrow roads. Opening in July 1970, Westway was designated A40(M). Retaining its hard shoulders and including both four-lane and six-lane sections, it still resembles a motorway. In 2000, when responsibility for trunk roads in
Greater London Greater may refer to: *Greatness Greatness is a concept of a state of superiority affecting a person or object in a particular place or area. Greatness can also be attributed to individuals who possess a natural ability to be better than al ...
was transferred from the
Highways Agency National Highways, formerly the Highways Agency and later Highways England, is a State-owned enterprise, government-owned company charged with operating, maintaining and improving Roads in England, motorways and major A roads in England. It al ...
to the
Greater London Authority The Greater London Authority (GLA), colloquially known by the metonym "City Hall", is the devolved regional governance body of Greater London. It consists of two political branches: the executive Mayoralty (currently led by Sadiq Khan) and t ...
, Westway lost its motorway status. The construction of Westway caused major disruption, with the demolition of houses and roads. When opened it was the largest continuous concrete structure in Britain.


Route

Westway starts from the Marylebone Flyover. Here the Marylebone Road ( A501)part of the northern section of the London Inner Ring Road crosses the Edgware Road ( A5) and continues as the A40 It runs close to the
Great Western Main Line The Great Western Main Line (GWML) is a main line railway in England that runs westwards from London Paddington to . It connects to other main lines such as those from Reading to Penzance and Swindon to Swansea. Opened in 1841, it was the o ...
out of
Paddington Paddington is an area within the City of Westminster, in Central London. First a medieval parish then a metropolitan borough, it was integrated with Westminster and Greater London in 1965. Three important landmarks of the district are Padd ...
to join Western Avenue. Between the Marylebone Flyover and Westway, a 100-metre section of surface-level road allows ''westbound'' traffic from the Marylebone Flyover to exit towards the
Harrow Road The Harrow Road is an ancient route in North West London which runs from Paddington in a northwesterly direction towards Harrow. It is also the name given to the immediate surrounding area of Queens Park and Kensal Green, straddling the NW10, ...
( A404) and eastbound traffic from the Harrow Road to access the Flyover. ''Eastbound'' traffic from the Westway cannot exit here to reach the
Edgware Road Edgware Road is a major road in London, England. The route originated as part of Roman Watling Street and, unusually in London, it runs for 10 miles in an almost perfectly straight line. Forming part of the modern A5 road, Edgware Road undergoes ...
and must continue ahead to the Marylebone Flyover. After passing
Paddington Basin Paddington Basin is the name given to a long canal basin, and its surrounding area, in Paddington, London. The basin commences 500 m south of the junction known as Little Venice, of the Regent's Canal and the Paddington Arm of the Grand ...
and
Paddington station Paddington, also known as London Paddington, is a Central London railway terminus and London Underground station complex, located on Praed Street in the Paddington area. The site has been the London terminus of services provided by the Great ...
and crossing the Paddington branch of the
Grand Union Canal The Grand Union Canal in England is part of the British canal system. It is the principal navigable waterway between London and the Midlands. Starting in London, one arm runs to Leicester and another ends in Birmingham, with the latter ...
, Westway follows the
Hammersmith & City line The Hammersmith & City line is a London Underground line that runs between Hammersmith in west London and in east London. Printed in pink on the Tube map, it serves 29 stations over . Between and it skirts the City of London, the capital's fi ...
through
North Kensington North Kensington is an area of west London. It is north of Notting Hill and south of Kensal Green and in the Royal Borough of Kensington and Chelsea. The names North Kensington and Ladbroke Grove describe the same area. North Kensington is wh ...
and
Westbourne Green Westbourne Green is an area of Westbourne, London, the centre of the former hamlet of Westbourne, at the north-western corner of the City of Westminster. It is named for its location west of a bourne (small stream). Traditionally a rural area, s ...
passing three
London Underground The London Underground (also known simply as the Underground or by its nickname the Tube) is a rapid transit system serving Greater London and some parts of the adjacent counties of Buckinghamshire, Essex and Hertfordshire in England. The ...
stations ( Royal Oak, Westbourne Park and
Ladbroke Grove Ladbroke Grove () is an area and a road in West London in the Royal Borough of Kensington and Chelsea, passing through Kensal Green and Notting Hill, running north–south between Harrow Road and Holland Park Avenue. It is also a name given to ...
) before flowing into Western Avenue.


Background

Leaving Marble Arch, the A40 continued along Bayswater Road and
Holland Park Avenue Holland Park Avenue is a street located in the Royal Borough of Kensington and Chelsea, in west central London. The street runs from Notting Hill Gate in the east to the Holland Park Roundabout in the west, forms a part of the old west road c ...
(now the A402) running through
Notting Hill Gate Notting Hill Gate is one of the main thoroughfares of Notting Hill, in the Royal Borough of Kensington and Chelsea. Historically the street was a location for toll gates, from which it derives its modern name. Location At Ossington Street/Ke ...
to
Shepherd's Bush Shepherd's Bush is a district of West London, England, within the London Borough of Hammersmith and Fulham west of Charing Cross, and identified as a major metropolitan centre in the London Plan. Although primarily residential in character ...
. Before Western Avenue was proposed and completed, the A40 continued along the
Uxbridge Road Uxbridge Road is the name of the A4020 road in West London. The route starts at Shepherd's Bush Green and goes west towards Uxbridge. It passes through Acton, Ealing, Hanwell, Southall, Hayes, and Hillingdon. Uxbridge Road is a major r ...
(the present A4020) passing through
Ealing Ealing () is a district in West London, England, west of Charing Cross in the London Borough of Ealing. Ealing is the administrative centre of the borough and is identified as a major metropolitan centre in the London Plan. Ealing was his ...
,
Southall Southall () is a large suburban county of West London, England, part of the London Borough of Ealing and is one of its seven major towns. It is situated west of Charing Cross and had a population of 69,857 as of 2011. It is generally divided ...
,
Uxbridge Uxbridge () is a suburban town in west London and the administrative headquarters of the London Borough of Hillingdon. Situated west-northwest of Charing Cross, it is one of the major metropolitan centres identified in the London Plan. Uxb ...
and
Denham, Buckinghamshire Denham is a village and civil parish in the unitary authority of Buckinghamshire, England, approximately from central London, northwest of Uxbridge and just north of junction 1 of the M40 motorway. The name is derived from the Old English for ...
. Still busy, the Uxbridge Road was redesignated the A4020, when Western Avenue was changed from being the A403, and the A40 route changed accordingly, From
Shepherd's Bush Shepherd's Bush is a district of West London, England, within the London Borough of Hammersmith and Fulham west of Charing Cross, and identified as a major metropolitan centre in the London Plan. Although primarily residential in character ...
, the A40 moved northbound along Wood Lanenear the
BBC Television Centre Television Centre (TVC) is a building complex in White City, West London, that was the headquarters of BBC Television between 1960 and 2013. After a refurbishment, the complex reopened in 2017 with three studios in use for TV production, opera ...
to join Western Avenue adjacent to a roundabout with the M41, now the
A3220 The A3220 is a primary A road in London. It runs north from Clapham Common to the A40 Westway at Ladbroke Grove. Route The road crosses the River Thames at Battersea Bridge. Turning left at the northern end of the bridge, the A3220 follows ...
, also referred to as the
West Cross Route The West Cross Route (WCR) is a 0.75 mile (1.2 km) 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 Ho ...
. The M41 and the A40(M) were downgraded to the A3220 and A40 at the same time in 2000.


Western Avenue

Starting at the junction with Old Oak Common Lane and Old Oak Road, East Acton, Western Avenue is approximately long. This
junction Junction may refer to: Arts and entertainment * ''Junction'' (film), a 2012 American film * Jjunction, a 2002 Indian film * Junction (album), a 1976 album by Andrew Cyrille * Junction (EP), by Basement Jaxx, 2002 * Junction (manga), or ''Hot ...
is
traffic light Traffic lights, traffic signals, or stoplights – known also as robots in South Africa are signalling devices positioned at road intersections, pedestrian crossings, and other locations in order to control flows of traffic. Traffic light ...
controlled, but its name 'Savoy Circus' recalls the roundabout which once formed the junction. From this point the A40 swings in a north-westerly direction towards North Acton, crosses the
Great Western Main Line The Great Western Main Line (GWML) is a main line railway in England that runs westwards from London Paddington to . It connects to other main lines such as those from Reading to Penzance and Swindon to Swansea. Opened in 1841, it was the o ...
, and the final
traffic light Traffic lights, traffic signals, or stoplights – known also as robots in South Africa are signalling devices positioned at road intersections, pedestrian crossings, and other locations in order to control flows of traffic. Traffic light ...
controlled
junction Junction may refer to: Arts and entertainment * ''Junction'' (film), a 2012 American film * Jjunction, a 2002 Indian film * Junction (album), a 1976 album by Andrew Cyrille * Junction (EP), by Basement Jaxx, 2002 * Junction (manga), or ''Hot ...
known as 'Gypsy Corner' ( A4000), to arrive at the
Hanger Lane Gyratory System The Hanger Lane gyratory is a multi-lane rectangular gyratory – having the Hanger Lane underpass, under its southern limb, for the Western Avenue ( A40). It enables intersection with the North Circular (A406) and the inceptive Ealing Roa ...
to connect with the
A406 The North Circular Road (officially the A406 and sometimes known as simply the North Circular) is a ring road around Central London in England. It runs from Chiswick in the west to Woolwich in the east via suburban North London, connecting ...
and A4005. The A40 passes under the gyratory system in a
tunnel A tunnel is an underground passageway, dug through surrounding soil, earth or rock, and enclosed except for the entrance and exit, commonly at each end. A pipeline is not a tunnel, though some recent tunnels have used immersed tube cons ...
.


Denham Roundabout

The Denham Roundabout is where Western Avenue A40flows into the
M40 motorway The M40 motorway links London, Oxford and Birmingham in England, a distance of approximately . The motorway is dual three lanes except for junction 1A to junction 3 (which is dual four lanes) a short section in-between the exit and entry slip-r ...
. The
roundabout A roundabout is a type of circular intersection or junction in which road traffic is permitted to flow in one direction around a central island, and priority is typically given to traffic already in the junction.''The New Shorter Oxford Eng ...
below provides a connection with the westbound continuation of the A40, together with the intersection of the road from
Uxbridge Uxbridge () is a suburban town in west London and the administrative headquarters of the London Borough of Hillingdon. Situated west-northwest of Charing Cross, it is one of the major metropolitan centres identified in the London Plan. Uxb ...
( A4020) and the road from
Slough Slough () is a town and unparished area in the unitary authority of the same name in Berkshire, England, bordering west London. It lies in the Thames Valley, west of central London and north-east of Reading, at the intersection of the ...
to
Watford Watford () is a town and borough in Hertfordshire, England, 15 miles northwest of Central London, on the River Colne. Initially a small market town, the Grand Junction Canal encouraged the construction of paper-making mills, print works, and ...
(
A412 The A412 is a road in England between Slough and Watford. It was the main artery for this corridor and used to continue to St Albans prior to the construction of the M25. It provides interchange to the A4 in Slough, the A40/ M40 at the D ...
). When the M40 from Denham to
High Wycombe High Wycombe, often referred to as Wycombe ( ), is a market town in Buckinghamshire, England. Lying in the valley of the River Wye, Buckinghamshire, River Wye surrounded by the Chiltern Hills, it is west-northwest of Charing Cross in London, ...
was built, Western Avenue was extended at high level to make an end-on join with the motorway, and a larger roundabout was built below the bridges carrying the motorway. When first laid out, the roundabout had the traffic going round it clockwise in the usual way, but as traffic volumes built up the layout was alteredso that the traffic moved round the roundabout in both directionsmaking it almost a ring road with mini-roundabouts at the points where other roads join the main roundabout.


Gallery

Image:Holborn Viaduct December 2005.jpg,
Holborn Viaduct Holborn Viaduct is a road bridge in London and the name of the street which crosses it (which forms part of the A40 route). It links Holborn, via Holborn Circus, with Newgate Street, in the City of London financial district, passing ov ...
carries the A40 Image:High Holborn 1.jpg,
High Holborn High Holborn ( ) is a street in Holborn and Farringdon Without, Central London, which forms a part of the A40 route from London to Fishguard. It starts in the west at the eastern end of St Giles High Street and runs past the Kingsway and S ...
,
Holborn Holborn ( or ) is a district in central London, which covers the south-eastern part of the London Borough of Camden and a part ( St Andrew Holborn Below the Bars) of the Ward of Farringdon Without in the City of London. The area has its ro ...
Image:Staple Inn, London, UK - 20050821.jpg,
Staple Inn Staple Inn is a part-Tudor period, Tudor building on the south side of High Holborn street in the City of London, London, England. Located near Chancery Lane tube station, it is used as the London venue for meetings of the Institute and Faculty ...
, with its distinctive timber-framed façade, on the south side of High Holborn Image:British Museum from NE 2.JPG, The
British Museum The British Museum is a public museum dedicated to human history, art and culture located in the Bloomsbury area of London. Its permanent collection of eight million works is among the largest and most comprehensive in existence. It docum ...
is just to the north of the A40 Image:New Oxford Street 1.jpg, New Oxford Street Image:Oxfordstreet and centrepoint.jpg,
Oxford Street Oxford Street is a major road in the City of Westminster in the West End of London, running from Tottenham Court Road to Marble Arch via Oxford Circus. It is Europe's busiest shopping street, with around half a million daily visitors, and ...
, with
Centre Point Centre Point is a building in Central London, comprising a 34-storey tower; a 9-storey block to the east including shops, offices, retail units and maisonettes; and a linking block between the two at first-floor level. It occupies 101–103 ...
in the background Image:Oxford_Street_December_2006.jpeg, The view west along Oxford Street in December 2006, showing
Selfridges Selfridges, also known as Selfridges & Co., is a chain of high-end department stores in the United Kingdom that is operated by Selfridges Retail Limited, part of the Selfridges Group of department stores. It was founded by Harry Gordon Selfridg ...
department store in the background Image:marble.arch.london.arp.jpg,
Marble Arch The Marble Arch is a 19th-century white marble-faced triumphal arch in London, England. The structure was designed by John Nash in 1827 to be the state entrance to the cour d'honneur of Buckingham Palace; it stood near the site of what is toda ...
Image:Speakers Corner.jpg,
Speakers' Corner A Speakers' Corner is an area where open-air public speaking, debate, and discussion are allowed. The original and best known is in the northeast corner of Hyde Park in London, England. Historically there were a number of other areas desig ...
, Hyde Park Image:BBC Television Centre.JPG,
BBC Television Centre Television Centre (TVC) is a building complex in White City, West London, that was the headquarters of BBC Television between 1960 and 2013. After a refurbishment, the complex reopened in 2017 with three studios in use for TV production, opera ...
,
White City White City may refer to: Places Australia * White City, Perth, an amusement park on the Perth foreshore * White City railway station, a former railway station * White City Stadium (Sydney), a tennis centre in Sydney * White City FC, a football c ...
Image:Westway at Paddington.jpg, Westway at
Paddington Paddington is an area within the City of Westminster, in Central London. First a medieval parish then a metropolitan borough, it was integrated with Westminster and Greater London in 1965. Three important landmarks of the district are Padd ...
Image:EdgwareRoadStationStatue.jpg, Sculpture "The Window Cleaner" by Allan Sly outside the
Edgware Road Edgware Road is a major road in London, England. The route originated as part of Roman Watling Street and, unusually in London, it runs for 10 miles in an almost perfectly straight line. Forming part of the modern A5 road, Edgware Road undergoes ...
London Underground The London Underground (also known simply as the Underground or by its nickname the Tube) is a rapid transit system serving Greater London and some parts of the adjacent counties of Buckinghamshire, Essex and Hertfordshire in England. The ...
station Image:shepherd's bush.jpg,
Uxbridge Road Uxbridge Road is the name of the A4020 road in West London. The route starts at Shepherd's Bush Green and goes west towards Uxbridge. It passes through Acton, Ealing, Hanwell, Southall, Hayes, and Hillingdon. Uxbridge Road is a major r ...
on the north side of the Green,
Shepherd's Bush Shepherd's Bush is a district of West London, England, within the London Borough of Hammersmith and Fulham west of Charing Cross, and identified as a major metropolitan centre in the London Plan. Although primarily residential in character ...
, formerly A40 Image:Westway Looking east.jpg, Westway flyover junction at
Ladbroke Grove Ladbroke Grove () is an area and a road in West London in the Royal Borough of Kensington and Chelsea, passing through Kensal Green and Notting Hill, running north–south between Harrow Road and Holland Park Avenue. It is also a name given to ...
, looking east Image:Notting Hill Carnival 2006 006.jpg, Crowds on Ladbroke Grove during the
Notting Hill Carnival The Notting Hill Carnival is an annual Caribbean festival event that has taken place in London since 1966
Image:West Cross Route looking north.jpg,
West Cross Route The West Cross Route (WCR) is a 0.75 mile (1.2 km) 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 Ho ...
, looking north towards Westway Image:Hoover Building.jpg, The
Hoover Building The Hoover Building is a Grade II* listed building of Art Deco architecture designed by Wallis, Gilbert and Partners located in Perivale in the London Borough of Ealing. The site opened in 1933 as the UK headquarters, manufacturing plant and rep ...
on Western Avenue in
Perivale Perivale () is an area of Greater London, west of Charing Cross. It is the smallest of the seven towns which make up the London Borough of Ealing. Perivale is mostly residential, with a library, community centre, a number of parks and open ...
is an example of
Art Deco Art Deco, short for the French ''Arts Décoratifs'', and sometimes just called Deco, is a style of visual arts, architecture, and product design, that first appeared in France in the 1910s (just before World War I), and flourished in the Unit ...
architecture designed by Wallis, Gilbert and Partners (1932–38)


Part of a larger plan

The West Cross Route in The
Royal Borough of Kensington and Chelsea The Royal Borough of Kensington and Chelsea is an Inner London borough with royal status. It is the smallest borough in London and the second smallest district in England; it is one of the most densely populated administrative regions in the ...
and the Hammersmith and Fulham borough, was formerly the M41 motorway, part of the innermost circuit of the
London Ringways The London Ringways were a series of four ring roads planned in the 1960s to circle London at various distances from the city centre. They were part of a comprehensive scheme developed by the Greater London Council (GLC) to alleviate traffic con ...
networka complex and comprehensive plan for a network of high-speed roads circling central London. Designed to manage and control the flow of traffic within the capital, the road would have run from
Battersea Battersea is a large district in south London, part of the London Borough of Wandsworth, England. It is centred southwest of Charing Cross and extends along the south bank of the River Thames. It includes the Battersea Park. History Batt ...
to
Harlesden Harlesden is a district in the London Borough of Brent, North West London. Located north of the Grand Union Canal and Wormwood Scrubs, the Harrow Road flows through the centre of the area which goes eastwards to Central London and west toward ...
and would have paralleled the
National Rail National Rail (NR) is the trading name licensed for use by the Rail Delivery Group, an unincorporated association whose membership consists of the passenger train operating companies (TOCs) of England, Scotland, and Wales. The TOCs run the ...
West London Line as an elevated road. Opening in 1970, together with Westway, it runs north–south between the northern elevated
roundabout A roundabout is a type of circular intersection or junction in which road traffic is permitted to flow in one direction around a central island, and priority is typically given to traffic already in the junction.''The New Shorter Oxford Eng ...
junction with the western end of the Westway ( A40) and the southern
Holland Park Holland Park is an area of Kensington, on the western edge of Central London, that contains a street and public park of the same name. It has no official boundaries but is roughly bounded by Kensington High Street to the south, Holland Road to ...
Roundabout A roundabout is a type of circular intersection or junction in which road traffic is permitted to flow in one direction around a central island, and priority is typically given to traffic already in the junction.''The New Shorter Oxford Eng ...
. In 2000 its status was downgraded to an
A-road A roads may be * motorways or freeways, usually where the local word for motorway begins with A (for example, ''Autobahn'' in German; ''Autostrada'' in Italian). * main roads or highways, in a system where roads are graded A, B and sometimes lowe ...
a short,
dual carriageway A dual carriageway ( BE) or divided highway ( AE) is a class of highway with carriageways for traffic travelling in opposite directions separated by a central reservation (BrE) or median (AmE). Roads with two or more carriageways which are ...
section of the
A3220 The A3220 is a primary A road in London. It runs north from Clapham Common to the A40 Westway at Ladbroke Grove. Route The road crosses the River Thames at Battersea Bridge. Turning left at the northern end of the bridge, the A3220 follows ...
.


Westfield

A
grade-separated junction A grade-separated junction is a transport junction where at least one bridge or tunnel is used to separate traffic flows (known as grade separation). Relevant articles include: * Road interchanges Interchange may refer to: Transport * Interch ...
was built approximately halfway along this section of the A3220 in 2008 to connect to the
Westfield London Westfield London is a large shopping centre in White City, west London, England, developed by the Westfield Group at a cost of £1.6bn, on a brownfield site formerly the home of the 1908 Franco-British Exhibition. The site is bounded by the W ...
shopping development. This shopping precinct in White City (London Borough of Hammersmith and Fulham) is on a site bounded by the West Cross Route, Westway and Wood Lane (
A219 A, or a, is the first letter and the first vowel of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is ''a'' (pronounced ), plural ''aes'' ...
), and opened on 30 October 2008.


References


External links


A40 in central London
at SABRE (The Society for All British and Irish Road Enthusiasts) {{DEFAULTSORT:A40 Road (London) 40 London