M11 motorway

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The M11 motorway is a 55-mile motorway that runs north from the North Circular Road (A406) in South Woodford in Essex to the A14, north-west of Cambridge. Originally proposed as early as 1915, various plans were considered throughout the 1960s, with final construction being undertaken from 1975–80. The motorway was opened in stages, with the first stage (between Junctions 7 and 8) opening in June 1975, and the completed motorway becoming fully operational in February 1980. Running from South Woodford to Girton, the motorway provides direct access to Harlow, a large new town, as well as the city of Cambridge and since 2002, the motorway has greatly improved access to Stansted Airport, the fourth busiest airport in the United Kingdom.


The M11 starts in the metropolis at junction 4 in South Woodford with the North Circular (A406), it then heads NNE, passing east of Loughton and Theydon Bois as well as Epping Forest, meeting the M25 motorway at Junction 6, and then veering approximately north, passing to the east of Harlow. The M11 gives access to Bishop's Stortford and the motorway's only service station via Junction 8. This is followed immediately by the recently constructed Junction 8A, which provides a free-flow link to the improved A120 that links to Stansted Airport. The M11 then traverses part of Cambridgeshire, meeting a spur for the A11 at Junction 9, and then finally ends at Junction 14, the busy Girton Interchange, with the road continuing through the junction and becoming the A14, which continues the route on to Huntingdon and the north.

The motorway starts with two lanes southbound and three northbound; then, north of Woodford Bridge, both directions have three lanes, a layout that continues up to Junction 8A, except for a brief two-lane section at Junction 6, beneath the M25. From Junction 8 the motorway has two lanes in both directions all the way to Junction 14 where the motorway terminates. The motorway is illuminated at the southern terminus near Junction 4, at Junction 6 (the M25 interchange), and also at the approach to Junction 8/8A (Stansted Airport/Bishop's Stortford), and then at the northern terminus at Junction 14, for the A14. All four of these sections use modern high-pressure sodium (SON) lighting. The older, yellow, low-pressure sodium (SOX) lighting originally used at junctions 4 and 6 was replaced in 2005. The numbering of the M11 junctions is unusual, as 1–3 are not used nor shared with another road – see history below.



The M11 north of Cambridge

Plans for an 'Eastern Avenue' in London had been proposed as early as 1915, and the Eastern Avenue Extension was causing local concern in Leyton and Hackney during the late 1950s and early 1960s.[1] It was opposed by a number of groups, including the Hackney Society[2] and local residents as represented by their member of parliament in 1962.[3]

By 1966 the Ministry of Transport was planning a longer road and for it to be partly motorway. The first version had a mid-south section, to follow a River Lea route, starting at Angel southwest of Dalston, heading north-east then north, taking land by the river in Walthamstow, Chingford and Waltham Cross, and meeting the built road alignment of today north of Harlow. The road from South Woodford to Islington would have been designated as the M12. The route was in planning stages with several options, with differences between the plans preferred by the Greater London Council and the Ministry of Transport[4] – a different version called for this 'Eastern Avenue' to run more east–west alongside the Regent's Canal and the north side of Victoria Park, Hackney Wick, where it would have connected to the North Cross and East Cross Routes at the north-east corner of an inner ringway identified by the London Ringways[n 1] plan.[4]

There were three proposed routes from the inner to outer ringway (North Circular) at the base of the current M11 and it is unclear which one was favoured.[4]

Under one scheme, south of South Woodford a connection would have been made with the western end of a proposed "M12" towards Colchester. These proposals also made the case for an M15 motorway for the Ringway 2, a major upgrade of the North Circular Road to typical motorway standard. When the southern end of the current M11 ended here, space was provided between the two carriageways to enable an offshoot of 'the M12' to merge from the south-west: junctions 1, 2 and 3 were reserved for this additional inner London section. Part of the unbuilt route of a southern section of the M11 is seen from a sliproad from the north circular to the M11 which travels over a bridge over bare land.

In March 1975 it was announced that from Junction 8 (Bishops Stortford/Stansted exit) to the northern terminus, (thus including the Cambridge western bypass) would not be "constructed to M1 standard".[5] This was another way of stating that following a change in government policy this section would comprise two rather than three lanes in each direction.[5]


The M11 Link Road, or more formally 'A12 Hackney to M11 link road' in fact leading to the north circular was constructed from Hackney Wick by Victoria Park to the Redbridge Roundabout, Wanstead interchange of the north circular during the 1990s and was opened in 1999[n 2].[6] The route of this road, which followed a similar route to one of the initial proposals[4] resulted in the protracted M11 link road protest between 1993 and 1995, one of a spate of major UK road protests under the Major ministry.

Subsequent abortive/suspended proposals

Junction 5

An official plan to add north-facing connections at Junction 5 in Debden was abandoned in 1998.[7]

Junctions 6 to 8

The Highways Agency tabled proposals to upgrade the M11, between junction 6 and 8, from three lanes plus hard shoulder to four each way with an estimated cost of £698 million given in 2007.[8] A number of public consultations were made throughout 2007[9] and although efforts were made to limit environmental damage the scheme would cause disruption and loss of habitat to three designated ecological areas and a Site of Special Scientific Interest (SSSI) at Gernon Bushes.[10]Maps of the proposal and previously discounted options were published by the Highways Agency. Plans were abandoned in March 2009 when the Secretary of State for Transport announced that no changes would be made to this section of motorway before 2021.[11]


The motorway was opened in stages. The stretch between Junctions 7 and 8 opened in 1975, and that between Junctions 4 and 7 in 1977.[n 3] The stretch from Junctions 8 to 9 opened in 1979 – that between Junctions 9 and 14 in 1980, the full length becoming fully operational in February 1980.[13][14]

During the 1970s when the road was built budgets were tight so unsurfaced concrete was used between Junction 14 and a point approximately two miles to the south of Junction 7. South of this stretch, where the road runs on soft ground close to the River Roding, concrete was considered unsuitable due to the looseness of the subsoil and the consequent risk of random cracking, so the road surface here was of tarmac from the start.


The motorway's first, and only, service station, Birchanger Green Services at Junction 8, opened in 1996. The services also serve the A120, a major high-speed dual-carriageway road, running from Junction 8A to the eastern fringe of Braintree, it continues on to Colchester as a busy single-carriageway road.[15]

There had been plans for a service station on the motorway as long ago as 1969, named Chigwell, between that village and Loughton, which led to the construction of spur roads and a restricted lorry park; during the London Olympics 2012 these were used as a works unit.[16] The plans for a service station at this site were officially dropped in 1980.[17]


Since the late 1990s the concrete surface that had greatly degraded was progressively replaced with standard layers of tarmac, and drainage improvements were implemented at the same time. This work was completed in June 2008.

Junction 8A for the A120 road and Stansted Airport opened in December 2002.

Proposed developments

As complementary plans for proposed expansion of Stansted Airport the Highways Agency collaborated with BAA on improvements to transport access to the airport[10] including two proposals for the M11, one of which has been deemed unnecessary, Junctions 6–8, see above and the other of which, including spur road and junction additions may be approved by the government if Stansted expansion takes place.[18]

M11 and A120 Interchange – Stansted Generation 2 Airport Access

A joint scheme involving works on junctions on the M11 and A120. This scheme was part of an aborted plan to add a second runway to Stansted Airport. It proposed changes to junction 8 of the M11 with the creation of junction 8B, linked to and situated just north of junction 8/8A and the creation of a new junction on the A120, to provide additional rapid access to the expanded airport.[19] The scheme was given an estimated cost of £131 million in May 2008.[20] Throughout 2007 a number of public consultations and exhibitions were held. Findings from these showed that although the public had several concerns regarding environmental impact 57% of attendees agreed the scheme would be necessary if the Stansted Airport expansion proceeded.[19] Following the public consultation the Preferred Route was published on 5 March 2008 and Draft Orders on 27 March 2008. The proposal lapsed when the application for a second runway was withdrawn by BAA in 2010.[21] A pre-public inquiry meeting took place on 10 November 2008[22] with a public inquiry due in April 2009.[23] However, this was delayed until further notice following BAA's appeal against the March 2009 ruling of the Competition Commission and the proposal lapsed when the application for a second runway was withdrawn by BAA in 2010.[24]


Plane crash

In June 2002, a brake failure on an Aero L-39 Albatross landing at the Imperial War Museum's Duxford Aerodrome caused the plane to run off the end of the runway and down the embankment on to the motorway. The trainee pilot was killed when he ejected from ground level but the instructor survived the accident and no vehicles on the motorway were involved.[25] The main runway at Duxford had been shortened in 1977 from 6,000 ft to 4,800 ft when the motorway was built. More recently even though Duxford already met all licensing requirements, the declared length was reduced to 4,010 ft to increase safety further than existing measures.[26][27]

Snow storm

In January 2003 thousands of motorists became stranded for up to 20 hours between junctions 7 and 9 during a snowstorm.[28]


Data from driver location signs are used to provide distance and carriageway identifier information.[29]

M11 motorway junctions
mile Southbound exits (B carriageway) Junction Northbound exits (A carriageway) Coordinates
7.5 North Circular A406 (West) (A10, A1), West End
The City, Docklands, Blackwall Tunnel (A12, A13), A406 South
J4 Start of motorway 51°35’52"N, 0°2’38"E
11.4 No access J5 Debden, Loughton A1168 51°38’25"N, 0°5’3"E
14.7 Watford, Oxford, Heathrow Airport, (M1), M40, M4 M25(W)
Gatwick Airport, Dartford Crossing, M23, M20 M25(E)
J6 Watford, Oxford, Heathrow Airport, (M1), M40, M4 M25(W)

Gatwick Airport, Dartford Crossing, M23, M20 M25(E)

51°40’46"N, 0°7’30"E
19.1 Chelmsford, Harlow A414 J7 Harlow A414 51°44’35"N, 0°8’16"E
28.9 Bishop's Stortford, Services, Colchester, Stansted A120 J8
Bishop's Stortford, Services A120(W) 51°52’18"N, 0°11’57"E
29.2 No access J8A Stansted, Colchester A120(E) 51°52’8"N, 0°11’50"E
43.3 No access J9 Newmarket, Haverhill Norwich A11 52°3’31"N, 0°11’21"E
J9A Saffron Walden, Cambridge South, Haverhill A1301 52°4’33"N, 0°11’35"E
45.9 Saffron Walden, Duxford, Haverhill A505 J10 Royston, Duxford A505 52°5’55"N, 0°8’17"E
50.8 Royston A10
Cambridge A1309
J11 Harston A10
Cambridge A1309
52°9’37"N, 0°6’12"E
53.4 Cambridge, Sandy A603 J12 Cambridge, Sandy A603 52°11’22"N, 0°4’28"E
55.1 No access J13 Cambridge, Bedford A1303 52°12’42"N, 0°4’39"E
56.2 St Neots A428 J14 Newmarket A14

Eye (A10)

52°13’50"N, 0°4’15"E
Start of motorway, Non-motorway traffic: Cambridge, Newmarket A14 Road continues north as A14 towards Huntingdon and The Midlands 52°14’26"N, 0°3’29"E

In popular culture

Life in the Fast Lane: The No M11 Story (1995) recounts The inside story of the No M11 Campaign, recounting 15 months of direct action against one of the most controversial schemes in the history of British road-building.

Notes and references

  1. An expressway inner circular, referred to as the London Motorway Box
  2. as the A12 which then continues to the east to Chelmsford and Colchester
  3. Constructed to the south of the not-yet built M25 interchange by W. & C. French Engineering, and to its north by Dowsett Engineering Construction Ltd of Harrogate[12]
  1. "Leyton – Introduction". British History. http://www.british-history.ac.uk/report.aspx?compid=42767. Retrieved 28 December 2009. 
  2. "History". Hackney Society. http://www.hackneysociety.org/page_id__67_path__0p1p.aspx. Retrieved 28 December 2009. 
  3. "Eastern Avenue Extension". Hansard. http://hansard.millbanksystems.com/written_answers/1962/may/08/eastern-avenue-extension#S5CV0659P0_19620508_CWA_55. Retrieved 28 December 2009. 
  4. 4.0 4.1 4.2 4.3 "Histories – Ringways – Northern Radials – M11". CBRD. http://www.cbrd.co.uk/histories/ringways/northern/m11.shtml. Retrieved 28 December 2009. 
  5. 5.0 5.1 Motorweek: Three lanes to two. 22 March 1975. 25. 
  6. "nce". http://www.nce.co.uk. Retrieved 28 December 2009. 
  7. "Taking Road Safety To The Extreme". 15 August 1998. http://www.thisislocallondon.co.uk/archive/display.var.72793.0.taking_road_safety_to_the_extreme.php. Retrieved 2 February 2008. 
  8. "M11 Junctions 6 to 8 Improvements Original Proposal". Highways Agency. http://www.highways.gov.uk/roads/projects/16629.aspx. Retrieved 7 November 2008. 
  9. "M11 Junctions 6 to 8 Improvements". Highways Agency. http://www.highways.gov.uk/roads/projects/14466.aspx. Retrieved 7 November 2008. 
  10. 10.0 10.1 "M11 Junctions 6 to 8 Improvements Spring 2007 Consultation". Highways Agency. http://www.highways.gov.uk/roads/documents/M11_junctions_6_to_8_Improvement.pdf. Retrieved 7 November 2008. 
  11. "Road and rail capacity (East of England)". Department for Transport. http://www.dft.gov.uk/press/speechesstatements/statements/roadrailcapacityeastengland. 
  12. "The Motorway Archive". http://www.iht.org/motorway/m11loncam.htm. Retrieved 7 September 2009. 
  13. "M11". CBRD. http://www.cbrd.co.uk/motorway/m11/. Retrieved 7 November 2008. 
  14. "M11 chronology map". CBRD. http://www.cbrd.co.uk/histories/chronologymaps/1980.shtml. Retrieved 29 June 2009. 
  15. Good Stuff IT Services. "Birchanger Green Services M11 | Information and Facilities | Motorway Services". Motorwayservices.info. http://www.motorwayservices.info/birchanger_green_services_m11. Retrieved 31 December 2011. 
  16. http://www.sabre-roads.org.uk/wiki/index.php?title=Chigwell_services
  17. "Unbuilt Services". Motorway Services Online. http://motorwayservicesonline.co.uk/Unbuilt_Services. Retrieved 31 December 2011. 
  18. "plane talk February/March 2007". BAA. http://www.baa.com/assets//B2CPortal/Static%20Files/stn_planetalk_febmar07.pdf. Retrieved 7 November 2008. 
  19. 19.0 19.1 "Stansted Generation 2 Airport Access from M11 and A120". Highways Agency. http://www.highways.gov.uk/roads/documents/M060327_Stansted_Generation_2_Airport_Access_from_M11_and_A12_Web_page.pdf. Retrieved 7 November 2008. 
  20. "Appraisal Summary Table: Airport Access Roads". Highways Agency. http://www.highways.gov.uk/roads/documents/Appraisal_Summary_Table_stansted.pdf. Retrieved 7 November 2008. 
  21. . "M11 and A120 Stansted Generation 2 Airport Access". Highways Agency. http://www.highways.gov.uk/roads/projects/14472.aspx. Retrieved 7 November 2008. 
  22. "Stansted G2 Inquiry Pre-Inqury Meeting". Planning Inspectorate. http://www.planning-inspectorate.gov.uk/stanstedg2inquiry/pre_inquiry.html. Retrieved 7 November 2008. 
  23. "Stansted G2 Inquiry". Planning Inspectorate. http://www.planning-inspectorate.gov.uk/stanstedg2inquiry/index.htm. Retrieved 7 November 2008. 
  24. "Stansted G2 Publice Inquiry". Planning Inspectorate. http://www.planning-inspectorate.gov.uk/stanstedg2inquiry/documents/StanstedopenletterfromSecretaryofState17June2009.pdf. Retrieved 29 June 2009. 
  25. "Motorway reopened after jet crash". BBC News. 3 June 2002. http://news.bbc.co.uk/1/hi/england/2021961.stm. Retrieved 31 December 2011. 
  26. "Duxford Airfield". Duxford.iwm.org.uk. http://duxford.iwm.org.uk/server/show/ConWebDoc.1181. Retrieved 31 December 2011. 
  27. "Accident Report" (PDF). http://www.caa.co.uk/docs/33/FACTOR200321.PDF. Retrieved 31 December 2011. 
  28. BBCThousands trapped in snow storm, 31 January 2003
  29. Driver Location Signs (map) Highway Authority 2009

Outside links

Motorways in the United Kingdom

Great Britain: M1  • M2  • M3  • M4  • M5  • M6  • M6 Toll  • M8  • M9  • M10  • M11  • M18  • M20  • M23  • M25  • M26  • M27  • M32  • M40  • M42  • M45  • M48  • M49  • M50  • M53  • M54  • M55  • M56  • M57  • M58  • M60  • M61  • M62  • M63  • M65  • M66  • M67  • M69  • M73  • M74  • M77  • M80  • M85  • M90  • M180  • M181  • M271  • M275  • M602  • M606  • M621  • M876  • M898  • Sections of A road: A1(M)

Former motorways marked in italics

Northern Ireland: M1  • M2  • M3  • M5  • M12  • M22