106-806: The A206 road is a road in southeast London and Kent, England. Today it is approximately 15 miles (24 km) in length, although the final section is a relatively new road. Its primary purpose is to link into the London Orbital motorway at the Dartford Crossing and is heavily used by lorries. It links Greenwich with Greenhithe following the line of the River Thames . [REDACTED] Media related to A206 road (England) at Wikimedia Commons 51°28′56″N 0°06′44″E / 51.48213°N 0.11235°E / 51.48213; 0.11235 This London road or road transport-related article
212-541: A 1-foot (0.30 m) pothole in the road and caused a 12-mile (19 km) tailback. The Minister for Transport John Hayes criticised the work and the resulting traffic problems. Roads in the United Kingdom#Primary destinations The United Kingdom has a well developed and extensive network of roads totalling about 262,300 miles (422,100 km). Road distances are shown in miles or yards and UK speed limits are indicated in miles per hour (mph) or by
318-446: A blue background, primary routes are indicated by green directional and distance signs with yellow text, whilst secondary roads use black text on a white background. In the UK, vehicles are normally driven or ridden on the left and required to keep to the left except when overtaking, turning right or passing pedestrians, parked vehicles and other obstructions in the road. In Great Britain ,
424-403: A bridleway bridge. The road was closed completely for two other occasions that year, with a final two closures scheduled for 2025. The M25 is one of Europe's busiest motorways. In 2003, a maximum of 196,000 vehicles a day were recorded just south of Heathrow, between junctions 13 and 14. The stretch between the nearby junctions 14 and 15 consistently records the highest daily traffic counts on
530-540: A concentric series of anti-tank defences and pillboxes designed to slow down a potential German invasion of the capital during World War II . This was marked as the D Ring on Abercombie's plans. Following the war, 11 separate county councils told the Ministry of Transport that an orbital route was "first priority" for London. Plans stalled because the route was planned to pass through several urban areas, which attracted criticism. The original D Ring through northwest London
636-455: A date of 75 BC, probably built by the Iceni tribe. Roads built in the first phase of Roman occupation (43–68 AD) connected London with the ports used in the invasion ( Chichester and Richborough ), and with the earlier legionary bases at Colchester ( Camulodunum ), Lincoln ( Lindum ), Wroxeter ( Viroconium ), Gloucester and Exeter . As Roman influence expanded, so did
742-583: A dedicated control centre. There is an extensive network of closed-circuit television (CCTV) on the motorway so incidents can be easily identified and located. A number of 4×4 vehicles patrol the motorway, attempting to keep traffic moving where possible, and assisting the local police. They can act as a rolling roadblock when there are obstacles on the road. When completed, the M25 only had street lighting for 65 miles (105 km) of its 117-mile (188 km) length. Originally, low pressure sodium (SOX) lighting
848-447: A distributed network of traffic and weather sensors, speed cameras and variable-speed signs , that control traffic speeds with little human supervision. It has improved traffic flow slightly, reducing the amount of start-stop driving. After Labour won the 1997 election , the road budget was cut from £6 billion to £1.4 billion. However, the DfT announced new proposals to widen
954-574: A formal objection to the widening scheme, and it was cancelled shortly afterwards. In 1994, the Standing Advisory Committee on Trunk Road Appraisal published a report saying that "the M25 experience most probably does ... serve as an example of a case where roads generate traffic" and that further improvements to the motorway were counter-productive. In April 1995, the Transport Minister Brian Mawhinney announced that
1060-539: A main span of 450 metres (1,480 ft). Passage across the bridge or through the tunnels is subject to a charge between 6 am and 10 pm, its level depending on the kind of vehicle. The road is not under motorway regulations so that other traffic can cross the Thames east of the Woolwich Ferry ; the only crossing further to the east is a passenger ferry between Gravesend , Kent , and Tilbury , Essex . At junction 5,
1166-511: A new Lower Thames Crossing to add capacity to the Dartford Crossing, or create a new road and crossing linking to the M2 and M20 motorways. Plans for that stalled, and were cancelled in 2013 by the Mayor of London, Boris Johnson , being replaced by a proposed Gallions Reach Crossing . Initially seen as a straight ferry replacement for the Woolwich Ferry , it was later mooted as a bridge or tunnel. By 2019,
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#17330945008221272-609: A new network of high-speed routes across the country. The passing of the Special Roads Act 1949 gave the government legal powers to build roads that were not automatically rights of way for certain types of user. In 1958, the first motorway was opened as the Preston Bypass , now part of the M6 motorway . The first major motorway to open was the M1 between Crick and Berrygrove . In 1963,
1378-474: A poor state of repair. The new Ministry of Transport created a classification system for the important routes connecting large population centres or for through traffic, with the definitive list being published in 1922/3 and revised in 1926/7. High unemployment after the end of World War I led the Minister of Transport to provide grant funding to the county councils to improve roads, particularly where labour
1484-488: A public inquiry was launched in 1974. The Department of Transport sent out 15,000 questionnaires about the preferred route, with 5,000 replies. A route was fixed in 1978, with objections delaying the start of construction in 1982. The southern section of what became the M25 through Surrey and Kent was first conceived to be an east–west road south of London to relieve the A25 , and running parallel to it, with its eastern end following
1590-573: A report on urban transport planning policy, Traffic in Towns , was produced for the UK Department of Transport by a team headed by the architect , civil engineer and planner Colin Buchanan . While it advocated the construction and reorganisation of towns to accommodate the motor car and lorry, it stressed that this would have to be balanced with restrictions, in accordance with local needs. It highlighted
1696-698: A royal commission into the question of toll roads. The growing popularity of cycling also prompted calls for road improvements, with the Cyclists' Touring Club and National Cyclists' Union pooling resources to form the Roads Improvement Association in October 1886; this focused on producing technical literature distributed to highways boards and surveyors to promote improved construction and maintenance methods. The Local Government Act 1888 created borough and county councils with responsibility for maintaining
1802-715: A small part of 15 are in Hillingdon , Greater London, 15–16 are in Buckinghamshire , 17–24 are in Hertfordshire , 25 is in Enfield , Greater London and 26–31 are in Essex . Policing of the road is carried out by an integrated group made up of the Metropolitan , Thames Valley , Essex , Kent , Hertfordshire and Surrey forces. Primary destinations signed ahead on the motorway include
1908-483: Is a stub . You can help Misplaced Pages by expanding it . London Orbital The M25 or London Orbital Motorway is a major road encircling most of Greater London . The 117-mile-long (188 km) 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 longest ring road in Europe upon opening. The Dartford Crossing completes
2014-955: Is maintained by the Department for Transport in combination with National Highways (for England), the Scottish Government and the Welsh Government . The concept of primary roads was introduced in the 1960s as part of a national reclassification of roads. Regional destinations are commonly used on long-distance routes throughout the country alongside primary destinations. They are displayed on signs in capitals to distinguish them from towns and cities. The boundaries of these regional destinations are not specifically defined and apply to generalised areas. The regions are: Mid Wales, North Wales, Scotland, South Wales, The East, The Lakes, The Dales, The Midlands, The North, The North East, The North West, The South, The South West and The West. Signage on
2120-511: Is no available explanation for the allocation of road numbers in Northern Ireland. The majority of the major inter-urban routes are motorways, and are designed to carry long-distance traffic. The next category is the primary route network, formed from parts of the A-road network. A primary route is defined as: ...a route, not being a route comprising any part of a motorway, in respect of which
2226-529: Is not even a village—merely a hotel and a few other buildings—yet has the status of a primary destination due to its location at the interchange of the A1 and A66 roads . For similar reasons, certain airports , sea ports , bridges and tunnels have been designated as primary destinations. Conversely, some towns with a population of over 50,000 are not primary destinations, including Woking , Chatham and Cumbernauld . The status of both primary destinations and roads
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#17330945008222332-528: Is responsible for all 5,592 miles (8,999 km) roads. The pan-UK total is 15,260 miles (24,560 km). Whilst generally they are trunk roads, some motorways are the responsibility of local authorities, for example the M275 . Since 2008, location marker posts have appeared on motorways and major A roads in England, situated generally at intervals of 500 metres (though the units are not given). These repeat
2438-569: Is the only fixed vehicle crossing of the Thames east of Greater London. It is also the busiest crossing in the United Kingdom, and consequently puts pressure on M25 traffic. Users of the crossing do not pay a toll, but rather a congestion charge. The signs at the crossing are the same as those deployed over the London congestion charge zone. In 2009, the Department for Transport published options for
2544-505: Is unclear. Primary destinations are usually cities and large towns, to which, as a result of their size, a high volume of traffic is expected to go. However, in rural areas, smaller towns or villages may be given primary status if located at junctions of significant roads: for example, Llangurig in Wales and Crianlarich in Scotland . As a further example, Scotch Corner in northern England
2650-532: Is unusual but examples can be found in all four countries in the UK. Each road is given a number which is combined with the prefix, for example M40 , A40 and B1110 , although their informal or traditional names may still be used or heard occasionally: for instance, the Great North Road (now part of the A1 ) and the Great Cambridge Road (modern A10 ). These numbers follow a zonal system . There
2756-581: The Campaign for Safe Road Design , which is calling on the UK Government to make safe road design a national transport priority. The earliest evidence of engineered roads dates back to the 1st century BC. A metalled and cambered road, 1.5 metres high and six metres wide, was unearthed at Bayston Hill quarry, near Shrewsbury . A timber road was preserved in peat in Geldeston , Norfolk , with tree rings suggesting
2862-613: The Chalfont Viaduct railway bridge, completed in 1906, which carries the Chiltern Main Line . Red kites can often be seen overhead to the north of this, up to junction 21. The northern section of the M25 passes close to All Saints Pastoral Centre near London Colney , Waltham Abbey and Copped Hall . This section also features two cut-and-cover tunnels , including the Bell Common Tunnel . The north-eastern section of
2968-533: The Conservatives won in every constituency that the motorway passed through, in particular gaining Thurrock from Labour . Coach tours were organised for a trip around the new road. However, it quickly became apparent that the M25 suffered from chronic congestion. A report in The Economist said it "had taken 70 years to plan [the motorway], 12 to build it and just one to find it was inadequate". Thatcher rebuked
3074-468: The Dartford Crossing , Sevenoaks , Gatwick Airport , Heathrow Airport , Watford , Stansted Airport and Brentwood . To the east of London the two ends of the M25 are joined to complete a loop by the non-motorway A282 Dartford Crossing of the River Thames between Thurrock and Dartford . The crossing consists of twin two-lane tunnels and the four-lane QE2 (Queen Elizabeth II) bridge , with
3180-488: The Highway Code applies. In Northern Ireland, the Highway Code for Northern Ireland applies. UK speed limits apply only to motor vehicles and are shown in mph . With a few exceptions, they are in multiples of 10, ranging from 20 miles per hour (32 km/h) to 70 miles per hour (113 km/h). Unless a lower speed limit is posted on a road, the national speed limit applies, which varies between class of vehicles and
3286-534: The London County Council announced the London Ringways plan, to consist of four concentric motorway rings around London. The following year, the transport minister Barbara Castle announced that the D Ring would be essential to build. The component parts of what became the M25 came from Ringway 3 / M16 motorway in the north and Ringway 4 in the south. The Ringways plan was controversial owing to
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3392-648: The M4 's Second Severn Crossing (officially 'The Prince of Wales Bridge') included tolls. However, after being closed for toll removal for three days, the bridge opened up again on 17 December starting with a formal ceremony. Toll payment was scrapped and it marked history as it is believed to be the first time in 400 years that the crossing will be free. Since the abolition of tolls on the Forth and Tay Road Bridges in 2008, there are no longer any toll roads in Scotland. In June 2008,
3498-519: The M40 motorway to the 1970s North Orbital Road construction (junctions 16 to 17) opened in January 1985. The route under the Chalfont Viaduct meant the motorway was restricted to a width of three lanes in each direction. The Prime Minister , Margaret Thatcher , officially opened the M25 on 29 October 1986, with a ceremony in the section between junctions 22 to 23 ( London Colney and South Mimms ). To avoid
3604-675: The North Downs close to several historic buildings such as Chevening , Titsey Place , Hever Castle and Chartwell . The interchange with the M23 motorway near Reigate is a four-level stack ; one of only a few examples in Britain. Past this, the M25 runs close to the Surrey Hills National Landscape . To the west, the M25 passes close to the edge of Heathrow Airport, and within sight of Windsor Castle . North of this, it goes under
3710-819: The United Nations Economic Commission for Europe . The E15 , which runs from Inverness to Algeciras , follows the M25 and A282 clockwise from the A1(M) at junction 23 to the M20 at junction 3; while the E30 Cork to Omsk route runs from the M4 at junction 15, clockwise to the A12 at junction 28. The United Kingdom is formally part of the E-roads network but, unlike in other countries, these routes are not marked on any road signs. The M25
3816-636: The 1930s, both the Institution of Highway Engineers and The County Surveyors' Society had published plans for a network of high-speed roads, whilst the Minister of Transport , Leslie Burgin , also visited the autobahn under construction in Germany . Lancashire County Council proposed a new scheme for a motorway and it was agreed to go ahead. This was, however, postponed due to the start of World War II . During World War II, government plans were drawn up to create
3922-558: The BBC. In 1996, Kenneth Noye murdered Stephen Cameron in a road rage incident while stopped at traffic lights on an M25 junction in Kent. He was convicted in 2000 and sentenced to life imprisonment. He was released in June 2019. In November 2014, during overnight roadworks, a 16-foot (4.9 m) piece of road surface near junction 9 at Leatherhead failed to set correctly due to rain. This created
4028-576: The British strategic road network, with the average flow in 2018 being 219,492 vehicles (lower than the record peak measured in 2014 of 262,842). Traffic on the M25 is monitored by Connect Plus Services on behalf of National Highways. The company operates a series of transportable CCTV cameras that can be easily moved into congestion hotspots, allowing operators to have a clear view of the motorway and so assess what might be done to tackle particular areas of congestion. Prior to its liquidation in 2018, Carillion
4134-475: The Heathrow link roads would be scrapped. In 1995, a contract was awarded to widen the section between junctions 8 and 10 from six to eight lanes at a cost of £93.4 million, and a Motorway Incident Detection and Automatic Signalling (MIDAS) system was introduced from junction 10 to junction 15 in 1995, at a cost of £13.5M. That was extended to junction 16 in 2002, at a cost of £11.7M. The system consists of
4240-496: The M25 and A3 around junction 10 in November 2022. The project is intended to limit congestion at the junction and allow traffic to proceed more safely. However, these plans caused concerns about the amount of woodland that would be required. In March 2024, National Highways announced the first all-day closure of the M25 in its operational history. The motorway was closed between junctions 10 and 11 from 15–18 March in order to remove
4346-547: The M25 are Clacket Lane between junctions 5 and 6 (in the south-east) and Cobham between junctions 9 and 10 (in the south-west). Those directly accessible from it are South Mimms off junction 23 (to the north of London) and Thurrock off junction 31 (to the east of London). As is common with other motorways, the M25 is equipped with emergency ("SOS") telephones. These connect to two National Highways operated control centres at Godstone (for junctions 1 to 15 inclusive) and South Mimms (for 16–31). The Dartford Crossing has
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4452-626: The M25 as the boundary in requiring a proportion of television programmes to be made outside the London area; it states a requirement of "a suitable proportion of the programmes made in the United Kingdom" to be made "in the United Kingdom outside the M25 area", defined in Section 362 as "the area the outer boundary of which is represented by the London Orbital Motorway (M25)". Sections of the M25 form part of two long-distance E-roads , designated by
4558-430: The M25 from six to eight lanes, between junctions 5 and 6, and 16 to 30, as part of a Design, Build, Finance and Operate (DBFO) project. A shortlist of contractors was announced in October 2006 for the project, which was expected to cost £4.5 billion. Contractors were asked to resubmit their bids in January 2008, and in June 2009 the new transport minister indicated that the cost had risen to £5.5 billion and
4664-624: The M25 had the potential to attract office and retail development along its route, negating the proposed traffic improvements and making Central London a less desirable place to work. None of the motorway was prevented from being built by objections at the public inquiries. However, as a consequence of the backlash against the Ringways, and criticism at the public inquiries, the motorway was built with environmental concerns in mind. New features included additional earth mounds, cuttings and fences that reduced noise, and over two million trees and shrubs to hide
4770-500: The M25 than it was designed for. The congestion has led to traffic management schemes that include variable speed limit and smart motorway . Since opening, the M25 has been progressively widened, particularly near Heathrow Airport . The M25 almost completely encircles Greater London and passes briefly through it, in the east and west. Junctions 1A–5 are in Kent , 6–13 are in Surrey , 14 and
4876-492: The North Downs Action Group (DANDAG) argued that the link was unnecessary, it would damage an Area of Outstanding Natural Beauty and it would be primarily used by local traffic as a bypass for the old A21 road between Farnborough and Sevenoaks. After a length inquiry process, chaired by George Dobry QC , the transport minister Kenneth Clarke announced the motorway would be built as proposed. The section from
4982-648: The Road Safety Foundation reported that 30 per cent of the primary route network in Great Britain failed to rate as safe, and a quarter of all motorways were outside the safest risk band. In 2006, the 8-mile (13 km) Cat and Fiddle Road between Macclesfield and Buxton was named as Britain's most dangerous road. The single-carriageway road has been the scene of 43 fatal or serious collisions since 2001, nearly three-quarters of them involving motorcyclists. When collisions involving motorcyclists are removed from
5088-593: The Secretary of State — (a) in the case of a trunk road is of the opinion, and (b) in any other case after consultation with the traffic authority for the road comprised in the route is of the opinion, that it provides the most satisfactory route for through traffic between places of traffic importance A new standard was set in April 2015 to formally designate certain high-quality routes as Expressways , but whether this will result in any existing road classifications changing
5194-902: The Treasury. Tolls or congestion charges are used for some major bridges and tunnels, for example the Dartford Crossing has a congestion charge. The M6 Toll , originally the Birmingham Northern Relief Road, is designed to relieve the M6 through Birmingham , which is one of the most heavily used roads in the country. There were two public toll roads (Roydon Road in Stanstead Abbots and College Road in Dulwich ) and about five private toll roads. Since 2006, congestion charging has been in operation in London and in Durham . Before 14 December 2018,
5300-428: The UK network conforms broadly to European norms, though a number of signs are unique to Britain and direction signs omit European route numbers. All length distances are shown in miles or yards, speed is in miles per hour whilst height and width restrictions are required to be shown in feet and inches (though the metric measurements may optionally also appear). In September 2007 the European Commission ruled that
5406-507: The UK, road safety policy is part of transport policy. "Transport 2010; The 10 Year Plan" states that the basic principle is that "people travel safely and feel secure whether they are on foot or bicycle, in a car, on a train, or bus, at sea or on a plane". The UK has a road network totalling about 262,300 miles (422,100 km) of paved roads—246,500 miles (396,700 km) in Great Britain (England, Scotland and Wales) and 15,800 miles (25,500 km) in Northern Ireland. Responsibility for
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#17330945008225512-489: The UK, without holding a public inquiry . Friends of the Earth claimed the real reason for the widening was to support Terminal 5. The decision was again deferred. A ten-lane scheme was announced in 1998, and the £148 million 'M25 Jct 12 to 15 Widening' contract was awarded to Balfour Beatty in 2003. The scheme was completed in 2005, with dual-five lanes between junctions 12 and 14 and dual-six lanes from junctions 14 to 15. In 2007, junction 25 (A10/Waltham Cross)
5618-679: The United Kingdom would never be required by them to convert signs to metric. The signage system currently in use was developed in the late 1950s and the early 1960s by the Anderson Committee, which established the motorway signing system, and by the Worboys Committee , which reformed signing for existing all-purpose (non-motorway) roads. It was introduced in 1965 and is governed by the Traffic Signs Regulations and General Directions . Signs may be of an informative, warning or instructional nature. Instructional signs are generally circular, warnings are triangular and informative signs are rectangular or square. Motorway informative signs use white text on
5724-417: The agreed Highways Agency 2013–14 business plan. In June 1992, the Department for Transport (DfT) announced a proposal to widen the section close to Heathrow Airport to fourteen lanes by way of three additional link roads. That attracted fierce opposition from anti-motorway protesters who were critical of the Newbury Bypass and other schemes, but also from local authorities. Surrey County Council led
5830-402: The analysis, the A61 between Barnsley and Wakefield was found to be the most dangerous road in Britain. Between 2003 and 2006, the most improved safety record was for the A453 from the A38 to Tamworth in Staffordshire . This rural single carriageway saw an 88 per cent drop in the number of fatal or serious collisions in the last six years, taking it from a medium risk road to one of
5936-427: The appointment of enclosure commissioners. Commissioners were given authorisation to replace old roads and country lanes with new roads that were wider and straighter than those they replaced. Straight roads of early origin, if not Roman were probably enclosure roads. They were established in the period between 1750 and 1850. The high cost of tolls, on the turnpikes, caused social unrest in Wales . A protest against
6042-416: The benefit to cost ratio had dropped considerably. In January 2009 the government announced that plans to widen the sections from junctions 5 to 7 and 23 to 27 had been 'scrapped' and that hard shoulder running would be introduced instead. However, widening to four lanes was reinstated in the 2013–14 Highways Agency Business Plan. In 2009, a £6.2 billion M25 DBFO private finance initiative contract
6148-414: The capital had been suggested in 1913, and was re-examined as a motorway route in Sir Charles Bressey's and Sir Edwin Lutyens' The Highway Development Survey, 1937 . Sir Patrick Abercrombie's County of London Plan, 1943 and Greater London Plan, 1944 proposed a series of five roads encircling the capital. The northern sections of the M25 follow a similar route to the Outer London Defence Ring ,
6254-400: The clockwise carriageway of the M25 is routed off the main north–south dual carriageway onto the main east–west dual carriageway with the main north–south carriageway becoming the A21 . In the opposite direction, to the east of the point where the M25 diverges from the main east–west carriageway, that carriageway becomes the M26 motorway . From here to junction 8, the M25 follows the edge of
6360-450: The destruction required for the inner two ring roads, ( Ringway 1 and Ringway 2 ). Parts of Ringway 1 were constructed (including the West Cross Route ), despite stiff opposition, before the overall plan was postponed in February 1972. In April 1973, the Greater London Council elections resulted in a Labour Party victory; the party then formally announced the cancellation of the Ringways running inside Greater London. This did not affect
6466-438: The early 1960s, and by 1966, planning had started on two projects, Ringway 3 to the north and Ringway 4 to the south. By the time the first sections opened in 1975, it was decided the ringways would be combined into a single orbital motorway. The M25 was one of the first motorway projects to consider environmental concerns and almost 40 public inquiries took place. The road was built as planned despite some protests that included
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#17330945008226572-580: The end of the Turnpike trusts , roads have been funded from taxation. Two new vehicle duties were introduced—the locomotive duty and the trade cart duty in the 1888 budget . Since 1910, the proceeds of road vehicle excise duties were dedicated to fund the building and maintenance of the road system. From 1920 to 1937, most roads in the United Kingdom were funded from the Road Fund using taxes raised from fuel duty and Vehicle Excise Duty . Since 1937, roads have been funded from general taxation with all motoring duties, including VAT , being paid directly to
6678-535: The information given on the co-sited surveyors' marker post which, since the 1960s, have reported distances on such roads in kilometres from a datum—usually the start of the road, or the planned start-point of the road. Numbered roads in the UK are signed as M (Motorway), A, or B roads (legal "classification" varies between countries), as well as various categories of more minor roads: for internal purposes, local authorities may also use C, D and U (the letter standing for "Unclassified"); use of C and U numbers on signs
6784-493: The junctions 27 (M11) to 30 (A13) section to dual four lanes also started in July 2009. The junction 27 to 28 (A12) section was completed in July 2010, and the junction 28 to 29 (A127) in June 2011, and finally the junction 29 to 30 (A13) section opened in May 2012. Work to introduce smart motorway technology and permanent hard shoulder running on two sections of the M25 began in 2013. The first section between junctions 5 (A21/M26) and 7 (M23) started construction in May 2013 with
6890-449: The legal framework remain under the control of the United Kingdom parliament . Although some roads have much older origins, the network was heavily developed from the 1950s to the mid-1990s to meet the demands of modern traffic. Construction of roads has become increasingly problematic with various opposition groups such as direct action campaigns and environmentalists . There are various ongoing and planned road building projects . In
6996-452: The major roads. After complaints about the first tram companies damaging the road surface, Parliament introduced the Tramways Act 1870 ( 33 & 34 Vict. c. 78), making tram companies responsible for the maintenance of the shared surface of the tramway and several feet either side, as a condition of being granted a licence. This was a popular move as maintenance was removed from the public purse. The local authority could also purchase
7102-526: The motorway passes close to North Ockendon , the only settlement of Greater London situated outside the M25. It then runs close to the Rainham Marshes Nature Reserve before reaching the northern end of the Dartford Crossing. In 2004, following an opinion poll, the London Assembly proposed aligning the Greater London boundary with the M25. "Inside the M25" and "outside/beyond the M25" are colloquial, looser alternatives to "Greater London" sometimes used in haulage. The Communications Act 2003 explicitly uses
7208-511: The motorway, designed for a maximum of 88,000 vehicles per day, was carrying 200,000. At that time, the M25 carried 15% of UK motorway traffic and there were plans to add six lanes to the section from junctions 12 to 15, as well as widening the rest of the motorway to four lanes. In parts, particularly the western third, that plan went ahead. Again, however, plans to widen further sections to eight lanes (four each way) were scaled back in 2009 in response to rising costs. The plans were reinstated in
7314-411: The negative response, calling it "carping and criticism". Traffic levels quickly exceeded the maximum design capacity. Two months before it opened, the government admitted that the three-lane section between junctions 11 and 13 was inadequate and that it would have to be widened to four. In 1990, the Secretary of State for Transport announced plans to widen the whole of the M25 to four lanes. By 1993
7420-463: The network, until around 180 AD when the known network was complete. Few Roman roads extended into Scotland due to their inability to subjugate the local population. Part of the Scottish Lowlands came under Roman control in 142 AD, and the Antonine Wall was constructed on the northern boundary. However, the Roman legions withdrew in 164 AD to their former northern boundary, Hadrian's Wall . The primary function of Roman roads
7526-429: The orbital route but is not classed as motorway; it is classed as a trunk road and designated as the A282 . In some cases, including notable legal contexts such as the Communications Act 2003 , the M25 is used as a de facto alternative boundary for Greater London. In the 1944 Greater London Plan , Patrick Abercrombie proposed an orbital motorway around London. This evolved into the London Ringways project in
7632-735: The plans had changed, with the Docklands Light Railway to be extended to Thamesmead instead. On 11 December 1984, nine people died and ten were injured in a multiple-vehicle collision between junctions 5 and 6. Twenty-six vehicles were involved when dense fog descended suddenly. On 16 December 1988, several vehicles were stolen and used as getaway for acts of murder and robbery, using the M25 to quickly move between targets. The M25 Three , including Raphael Rowe , were tried and sentenced to life imprisonment in 1990. Their convictions were overturned in 2000 and Rowe, who studied journalism while in prison, became an investigative journalist for
7738-561: The road network differs between trunk and non-trunk routes. Trunk roads, which are the most important roads, are administered by National Highways in England , Transport Scotland in Scotland , the North and Mid Wales Trunk Road Agent , and South Wales Trunk Road Agent in Wales . England's 4,300 miles (6,920 km) of trunk roads account for 33% of all road travel and 50% of lorry travel. Scotland has 2,174 miles (3,499 km) (about 7% of
7844-468: The road, draped with large banners reading "Not Epping Likely". As a consequence of this, the Bell Common Tunnel that runs in this area is twice as long as originally proposed. The most controversial section of the M25 was that between Swanley and Sevenoaks (junctions 3 to 5) in Kent across the Darenth Valley , Badgers Mount and the North Downs . An 1,800-member group named Defend Darenth Valley and
7950-518: The route of what is now the M26 . It was originally proposed as an all-purpose route, but was upgraded to motorway standard in 1966. It was the first section of the route announced as M25 from the beginning. The first section from Godstone to Reigate (junctions 6 to 8) was first planned in 1966 and opened in February 1976. A section of Ringway 3 south of the river between Dartford and Swanley (junctions 1 to 3)
8056-521: The routes that would become the M25, because they were planned as central government projects from the outset. There was no individual public inquiry into the M25 as a whole. Each section was presented to planning authorities in its own right and was individually justified, with 39 separate public inquiries relating to sections of the route. The need for the ministry to negotiate with local councils meant that more junctions with local traffic were built than originally proposed. A report in 1981 showed that
8162-513: The safest. According to the Foundation, this has been achieved by introducing traffic lights, speed limit reductions and village pedestrian facilities. Research undertaken in July 2008 has shown that investment in a safe road infrastructure programme could yield a one-third reduction in road deaths, saving as much as £6 billion per year. A consortium of 13 major road safety stakeholders have formed
8268-570: The scheme being completed and opened in April 2014. The second section, between junctions 23 (A1/A1(M)) and 27 (M11), began construction in February 2013 and was completed and opened in November 2014. In December 2016, Highways England completed the capacity project at junction 30 (Thurrock) as part of the Thames Gateway Delivery Plan. The £100 million scheme included widening the M25 to four lanes, adding additional link roads, and improvements to drainage. Work began to widen
8374-465: The section between junction 12 (M3) and junction 15 (M4) to 12 lanes. At the Heathrow Terminal 5 public inquiry, a Highways Agency official said that the widening was needed to accommodate traffic to the proposed new terminal, but the transport minister said that no such evidence had been given. Environmental groups objected to the decision to go ahead with a scheme to create the widest motorways in
8480-403: The section over the North Downs and around Epping Forest which required an extension of the Bell Common Tunnel . Although the M25 was popular during construction, it quickly became apparent that there was insufficient traffic capacity. Because of the public inquiries, several junctions merely served local roads where office and retail developments were built, attracting even more traffic onto
8586-494: The slip roads at busy periods, particularly traffic from the clockwise M25 joining the northbound A12. In 2018, a new scheme was proposed, because the junction had reached capacity, accommodating over 7,500 vehicles per hour. The scheme involved building a two-lane link road between the M25 and the A12. The work was expected to be completed around 2021/22. In 2006, the Highways Agency proposed widening 63 miles (101 km) of
8692-699: The south-east and Hunton Bridge to Potters Bar in the north-west. The section of Ringway 3 west of South Mimms anti-clockwise around London to Swanley in Kent was cancelled. The section from Potters Bar to the Dartford Tunnel was constructed in stages from June 1979 onwards, with the final section between Waltham Cross (junction 25) to Theydon Garnon (junction 27) opening in January 1984. This section, running through Epping Forest , attracted opposition and protests. In 1973, local residents had parked combine harvesters in Parliament Square in protest against
8798-625: The start of the programmes. In 1930, responsibility for all roads was vested in the county councils. The first inter-urban new road built in the UK was the East Lancs Road , which was built between 1929 and 1934 at a cost of £8 million. For the first time since the Roman occupation , the Ministry of Transport took direct control of the core road network through the Trunk Roads Act 1936 . During
8904-432: The threat of road protesters, the ceremony was held a quarter of a mile from the nearest bridge. The total estimated cost of the motorway was around £1 billion. It required 2 million tonnes (2.2 million short tons) of concrete, 2.5 million tonnes (2.8 million short tons) of asphalt and involved the removal of 49 million cubic metres (1,700 million cubic feet) of spoil. Upon completion, it
9010-511: The tolls that became known as the Rebecca Riots took place, in Wales, between 1839 and 1843. The riots ceased after some ringleaders, John Jones (Shoni Sguborfawr) and David Davies (Dai'r Cantwr) , were convicted and transported to Australia . Following several attempts at reform, detrunking began in the 1860s with the last trust ending in 1885. The protests prompted several reforms, including
9116-545: The total roads in Scotland), accounting for 35% of all road journeys and over 50% of lorry movements. Wales has 1,000 miles (1,600 km) of trunk roads. In London , Transport for London is responsible for all trunk roads and other major roads, which are part of the Transport for London Road Network . All other roads are the responsibility of the relevant county council or unitary authority . In Northern Ireland , DfI Roads
9222-502: The type of road. In a built-up area (usually indicated by street lights), unless signs indicate otherwise, a limit of 30 miles per hour (48 km/h) applies. Other limits are shown in the table. For a road to be classed as a dual carriageway, the two directions of traffic flow must be physically separated by a central reservation . Enforcement of UK road speed limits increasingly uses speed guns , automated in-vehicle systems and automated roadside traffic cameras . After
9328-456: The use of rivers as a system of transportation. Many of these roadways were developed as a result of trading of goods and services, such as wool , sheep , cattle and salt . They linked together market towns , towns with bridges , harbours and ports. Other roadways developed to meet the needs of pilgrims visiting shrines , such as Walsingham , and for transporting corpses from isolated communities to local graveyards . The Icknield Way
9434-474: The use of the national speed limit (NSL) symbol. Some vehicle categories have various lower maximum limits enforced by speed limiters . A unified numbering system is in place for Great Britain , whilst in Northern Ireland , there is no available explanation for the allocation of road numbers. The earliest specifically engineered roads were built during the prehistoric British Iron Age . The road network
9540-632: The view of the road. Construction of parts of the two outer ring roads, Ringways 3 and 4, began in 1973. The first section, between South Mimms and Potters Bar in Hertfordshire (junctions 23 to 24) opened in September 1975. It was provisionally known as the M16 and was given the temporary general-purpose road designation A1178 . A section of the North Orbital Road between Rickmansworth and Hunton Bridge
9646-452: The whole line at a later date at a discount, or force the tram company to reinstate the road. The Roads Act 1920 brought in the Road Fund , with the government receiving revenue from excise duty on road vehicles and from the sale of licences for horse-drawn carriages and driving licences . As road traffic began to grow, the condition of the road network became an issue, with most of it in
9752-710: Was authorised by the Highways Act 1663 for a section of the Great North Road in Hertfordshire . The first turnpike trust was established by the Parliament of England through a Turnpike Act in 1706. Scotland continued to maintain its own Parliament until the Acts of Union 1707 , when the two parliaments merged to form the Kingdom of Great Britain . In the second half of the 18th century, turnpike trusts became numerous, with trusts also set up in Wales and lowland Scotland. This expansion
9858-435: Was awarded to Connect Plus to widen the sections between junctions 16 to 23 and 27 to 30, and maintain the M25 and the Dartford Crossing for a 30-year period. Work to widen the section between junctions 16 (M40) and 23 (A1(M)) to dual four lanes started in July 2009 at an estimated cost of £580 million. The junction 16 to 21 (M1) section was completed by July 2011 and the junction 21 to 23 by June 2012. Works to widen
9964-522: Was constructed between May 1974 and April 1977. In 1975, following extensive opposition to some parts of Ringway 3 through Middlesex and South London, the transport minister John Gilbert announced that the north section of Ringway 3 already planned would be combined with the southern section of Ringway 4, forming a single orbital motorway to be known as the M25, and the M16 designation was dropped. This scheme required two additional sections to join what were two different schemes, from Swanley to Sevenoaks in
10070-515: Was expanded during the Roman occupation . Some of these roads still remain to this day. New roads were added in the Middle Ages and from the 17th century onwards. Whilst control has been transferred between local and central bodies, current management and development of the road network is shared between local authorities , the devolved administrations of Scotland , Wales and Northern Ireland , and National Highways in England. Certain aspects of
10176-408: Was facilitated by the ability to use mortgages to fund the work. By 1821 there were 18,000 miles (29,000 km) of turnpike roads in England, with 1,000 trusts by 1845. Also, in England, the process of land owners enclosing land had been happening since medieval times. During the 17th century a practice developed of obtaining authorisation by Act of Parliament . The statutory process included
10282-451: Was intended to be a simple upgrade of streets. In 1951, Middlesex County Council planned a route for the orbital road through the county, passing through Eastcote and west of Bushey , connecting with the proposed M1 motorway , but it was rejected by the Ministry two years later. An alternative route via Harrow and Ealing was proposed, but this was abandoned after the council revealed the extent of property demolition required. In 1964,
10388-508: Was one of four highways that appear in the literature of the 1130s. Henry of Huntingdon wrote that the Ermine Street , Fosse Way , Watling Street and Icknield Way had been constructed by royal authority. The first legislated control in England was introduced under the Highways Act 1555 . Road rates were introduced in England and Wales in the 17th century. The first turnpike road, whereby travellers paid tolls to be used for road upkeep,
10494-449: Was originally built mostly as a dual three-lane motorway. Much of this has since been widened to dual four lanes for almost half, to a dual five-lanes section between junctions 12 and 14 and a dual six-lane section between junctions 14 and 15. Further widening is in progress of minor sections with plans for smart motorways in many others. Two motorway service areas are on the M25, and two others are directly accessible from it. Those on
10600-499: Was proposed in 1966, with detailed planning in 1971. The North Orbital Extension was given the go-ahead in January 1973, from Maple Cross. It was 6.2 miles, and was to cost £6.5m. The road was constructed to motorway standards and opened on Thursday 26 February 1976, as a section of the A405 . It eventually became part of the M25's route. The section to the south, from Heathrow Airport to Rickmansworth had five separate routes proposed when
10706-461: Was recruited from areas of high unemployment and adjoining areas, and men with dependants. Two unemployment relief programmes were run, the first from 1920 to 1925 and the second from 1929 to 1930. Government grants were limited to trunk roads and bridges, with the money coming from the Road Fund. Some 500 miles (800 km) of bypasses were built by 1935, about half of what was originally planned at
10812-446: Was remodelled to increase capacity. The nearby Holmesdale Tunnel was widened to three lanes in an easterly direction, and an additional left-turn lane added from the A10 onto the motorway. The total cost was £75 million. Work to widen the exit slip-roads in both directions at junction 28 ( A12 / A1023) was completed in 2008. That was designed to reduce the amount of traffic queuing on
10918-428: Was subcontracted to manage traffic on the M25, delivering live alerts from body-worn cameras via 3G, 4G and Wi-Fi. Since 1995, sections of the M25 have been equipped with variable speed limits, which slow traffic in the event of congestion or an obstruction, and help manage the traffic flow. The scheme was originally trialled between junctions 10 and 16, and was made a permanent fixture in 1997. The Dartford Crossing
11024-487: Was the longest orbital motorway in the world at 117 miles (188 km). At the opening ceremony, Thatcher announced that 98 miles (158 km) had been constructed while the Conservative Party were in office, calling it "a splendid achievement for Britain". A 58-page brochure was published, commemorating the completion of the motorway. The M25 was initially popular with the public. In the 1987 general election ,
11130-438: Was the most prominent technology used, but this has been gradually replaced with high-pressure sodium (SON) lighting. As of 2015 the motorway has more than 10,000 streetlights. The M25 has a number of pollution control valves along its length, which can shut off drainage in the event of a chemical or fuel spill. The idea of a general bypass around London was first proposed early in the 20th century. An outer orbital route around
11236-461: Was to allow the rapid movement of troops and military supplies, but it also provided vital infrastructure for trade and the transport of goods. The roads were paved, a first for the island, and could carry heavy goods in all weathers. Following the Roman withdrawal from Britain, road maintenance became a very ad hoc activity. A network of roadways was developed in Britain in the Middle Ages to supplement
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