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The M4 is a motorway which runs between London
London
and South Wales
South Wales
in the United Kingdom. Major towns and cities along the route include Slough, Reading, Swindon, Bristol, Newport, Cardiff
Cardiff
and Swansea. Originally referred to as the London- South Wales
South Wales
Motorway, the English section, including a suspension bridge over the River Severn, was constructed between 1961 and 1971; the Welsh element was completed in 1993. A new Severn bridge, known as the Second Severn Crossing, was opened in 1996 with the M4 rerouted to use it. The M4 runs close to the A4 from London
London
to Bristol. After crossing the River Severn
River Severn
it follows the A48 through South Wales, using the Brynglas Tunnels
Brynglas Tunnels
at Junction 25a, Newport and terminates just north of Pontarddulais. It is one of only three motorways in Wales; the other two, the A48(M) and M48, branch off it. The area of land along the M4, with its towns and cities, is known as the M4 corridor. European route E30 includes most of the M4, although it is not signed as such.

Contents

1 History 2 Features

2.1 Toll bridge 2.2 Speed limits 2.3 M4 bus lane 2.4 Porous road surface 2.5 Elevated and heated section 2.6 Four level stack interchanges 2.7 Smart (managed) motorway 2.8 Tunnels 2.9 Notable junctions 2.10 Maintenance

3 Proposed developments

3.1 Hard shoulder running, from Junction 3 to Junction 12 3.2 New junctions: 15a, 18a 3.3 M4 Junction 31 3.4 M4 relief road
M4 relief road
around Newport 3.5 Port Talbot, Junctions 40 and 41

4 Incidents and accidents 5 Junctions 6 See also 7 References 8 Further reading 9 External links

History[edit] A new road from London
London
to South Wales
South Wales
was first proposed in the 1930s, and the Ministry of Transport announced plans for the M4 as one of the first major post-war trunk road improvement projects in 1956.[2] The Chiswick
Chiswick
flyover, a short section of elevated dual-carriageway built to reduce the impact of traffic travelling between central London
London
and the west, opened in 1959;[3] it was not originally classed as a motorway.[4] The Maidenhead
Maidenhead
bypass opened in 1961 whilst J1-J5 opened in 1965. The stretch from J18 to the west of Newport was opened in 1966, including the Severn Bridge
Severn Bridge
(now part of the M48). The Port Talbot by-pass, also built in the 1960s and now part of the M4, was originally the A48(M) motorway, a number now allocated to a short section of motorway near Cardiff. The Ministry of Transport originally intended that the M4 would terminate at Tredegar Park west of Newport, and it was only following the creation of the Welsh Office
Welsh Office
that the Government became committed to a high-standard dual carriageway to Pont Abraham
Pont Abraham
in Carmarthenshire.[5] The English section of the motorway was completed on 22 December 1971 when the 50-mile (80 km) stretch between Junctions 9 and 15 ( Maidenhead
Maidenhead
and Swindon) was opened to traffic.[6] The Welsh section was completed in 1993, when the Briton Ferry
Briton Ferry
motorway bridge opened. The Second Severn Crossing
Second Severn Crossing
opened in 1996, together with new link motorways on either side of the estuary to divert the M4 over the new crossing. The existing route over the Severn Bridge
Severn Bridge
was redesignated the M48, and the new M49 was opened to connect the new crossing to the M5.[7]

The Second Severn Crossing

In June 1999 the section of the third lane (the lane nearest the central reservation) between Junctions 2 and 3 was converted to a bus lane, first as a pilot scheme and then permanently in 2001. A lower speed limit was introduced along the bus lane section at the same time[8] (the lane was however reverted to general traffic use by the incoming coalition government in late 2010).[9] In April 2005 speed checks carried out by police camera vans between Junction 14 and Junction 18 led to a public protest, involving a "go-slow" of several hundred vehicles along the affected sections of the motorway.[10] Between 2007 and January 2010 the section from Castleton (Junction 29) to Coryton (Junction 32) was widened to six lanes.[11] The scheme was formally opened on 25 January 2010 by Ieuan Wyn Jones
Ieuan Wyn Jones
the Deputy First Minister for Wales. During 2009 the Newport section of the motorway between Junctions 23a and 29 was upgraded with a new concrete central barrier. In February 2010 it was proposed that the M4 in South Wales
South Wales
would become the first hydrogen highway with hydrogen stations provided along the route, with an aspiration for further stations to be provided along the M4 into South West England
South West England
over time.[12] A similar claim was made for a 30-mile (48 km) section of road in Scotland close to Aberdeen
Aberdeen
in September 2009 with refuelling points at Bridge of Don, Ellon and Peterhead.[13]

The original (A48(M)) bridge over the River Neath
Neath
is to the right, the new M4 bridge is to the left

In October 2010 the new Secretary of State for Transport, Philip Hammond, announced that the bus lane in the London
London
section would be suspended for 18 months from 24 December 2010, be brought back into use temporarily for the 2012 Summer Olympics, and then be removed.[14] Between 2008 and 2010, Junction 11, near Reading, was extensively remodelled with a new four-lane motorway junction, two new road bridges and other works.[15] The £65m scheme included work on the Mereoak roundabout and part of the A33 Swallowfield Bypass near Shinfield, and also the conversion of the two existing bridges, one of which is available only to pedestrians and cyclists and the other to buses.[16] It also involved the movement of the local Highways Agency and Fire Service offices, and the construction of a long footbridge network, a new bus-lane and a new gyratory. Sound barriers for nearby residential areas were also installed.[17] In April 2008, the decision to preserve a rare Vickers machine gun
Vickers machine gun
pillbox and turn it into a bat roost was announced by the developers.[18] The table below shows the timeline for the construction of the motorway on a section by section basis.[19][20][21][22][23][24]

Year opened 1961 1963 1965 1966 1967 1971 1972 1977 1980 1994

Section(s) J7–9 J5–7 J1–5 J18–23 J39–41 J22–28 J9–18 J44–46 J28–29 J32–35 J37–39 J46–49 J29–32 J35–37 J41–44

An animated map showing build progress at five-year (or greater) intervals. Note: When the Second Severn Crossing
Second Severn Crossing
was opened in 1996 the M4 was re-routed to cross the new bridge; the previous section of motorway between Junctions 21 to 23 was renamed the M48.[25]

Features[edit] Toll bridge[edit]

The westbound carriageway tolls (left), near Rogiet, and the three-lane eastbound carriageway (right).

The M4 crosses the River Severn
River Severn
via a toll bridge, the last of only three on the UK motorway network – the first was the original Severn Bridge, now part of the M48 and the second is the Queen Elizabeth II Bridge, part of the Dartford Crossing. Tolls are charged in one direction only: westbound. Drivers therefore have to pay to enter Wales, but not to enter England. Speed limits[edit] For the majority of its length, the national speed limit applies. Exceptions include the following:

40 miles per hour (64 km/h) on the Chiswick
Chiswick
Flyover within London in both directions. 60 miles per hour (97 km/h) between Junction 4 and the Chiswick Flyover eastbound only. 50 miles per hour (80 km/h) when approaching the toll plaza after leaving the Severn Crossing, to protect plaza staff moving between the toll booths.[26] 50 miles per hour (80 km/h) on the Port Talbot
Port Talbot
elevated section between Junction 40 and Junction 41. The fixed speed camera was removed in 2006 as it was believed to cause tailbacks – it was replaced with an average speed camera system, installed in July 2014. It generates around £500,000 in fines each six months.[27][28]

M4 bus lane[edit]

M4 bus lane
M4 bus lane
near Norwood Green, Ealing

Main article: M4 bus lane Between 1999 and 2010 there was a controversial 3.5-mile (5.6 km) bus lane on the eastbound (London-bound) carriageway from Junction 3 (A312) to the western end of the Chiswick
Chiswick
Flyover near Brentford, covering part of the 15-mile (24 km) journey between Heathrow Airport and central London. The lane which had no intermediate exits was for use by buses, coaches, motorcycles, emergency vehicles and licensed taxis but not mini-cabs.[29] It was used by 7% of vehicles which carried 21% of the people.[8] The lane was restored for normal motorway running at the end of 2010 for 18 months[9] using an Experimental Traffic Order[30] and was re-established for the duration of the 2012 Summer Olympics
2012 Summer Olympics
with the intention that it would then be removed permanently.[9] Porous road surface[edit] Near Junction 35 of the M4, there is a stretch of the motorway that has a surfacing of porous asphalt that improves drainage and reduces noise. When driving in heavy rain drivers notice a reduction in road spray from other vehicles and improved visibility. This special surface was publicised in an episode of the BBC's Tomorrow's World programme. This was the site of the first trial of the new road surface when it was laid down in 1993.[31] Elevated and heated section[edit] The elevated section of the M4 in West London, built in the 1960s, is mostly directly above the A4 and extends over parts of Brentford's Golden Mile. This section was designed to have a heated road surface to reduce icing in winter.[32][33] Four level stack interchanges[edit]

M4 Junction 4b / M25 Junction 15 near Heathrow Airport

The M4 has two of only three four-level stack interchanges in the UK, including the first UK example at the junction with the M5 (Junction 20/"Almondsbury Interchange") and the other at the junction with the M25 (J4b). Junction 4b also has to make provision for a railway line passing beneath the M4. Due to the nature of such junctions, it is impossible to make a u-turn at Junction 20 or Junction 4b. Smart (managed) motorway[edit]

Construction of electronic indicator signs for the variable speed limit scheme at Junction 27 and a new concrete reservation, in 2010

The M4 motorway
M4 motorway
has two sections of smart motorway between Junctions 19 (M32) and 20 (M5) north of Bristol, and between Junction 24 and Junction 29 north of Newport. The section between Junctions 19 and 20 have variable speed limits and a part-time hard-shoulder and was completed in early summer 2014.[34] The section between Junctions 24 and 29 only has variable speed limits. It was designed save money through fewer accidents in the long term. Tunnels[edit] The M4 passes through the Brynglas Tunnels
Brynglas Tunnels
at Junction 25a, Newport. These are the only twin–bored tunnels on the United Kingdom motorway network. Notable junctions[edit] Junction 8/9 near Maidenhead, Berkshire, and High Wycombe, Buckinghamshire
Buckinghamshire
is the only one in the UK with dual numbers. This a relic from when the M4 used to turn north after junction 8, where it met the A308, and head for the original Junction 9, where it ended on a roundabout interchange with the A4. When the westward extension was opened junction 8 was closed and a new junction built a little to the west, taking both numbers. The road to the A4 became A423(M) and later A404(M) and the junction with the A4 became 9B. Junction 9A is the exit for Cox Green and White Waltham. West of Junction 13 on the eastbound carriageway there are a set of sliproads signposted "Works Unit Only". The signs have red borders, implying a military exit. It is a back entrance to RAF Welford, a Second World War airfield and now an RAF/USAF military installation mainly used for storing munitions. The M4 entrance allows easier access for the large vehicles used to carry the munitions.[35] The section of the M4 in South Wales
South Wales
has to thread its way through mountainous terrain and built-up areas, so there are some unusual junction layouts. Junction 27 (High Cross) is a normal grade-separated roundabout junction, but subject to severe space constraints: traffic joining the motorway must initially travel in the opposite direction to the intended direction of travel, before making a sharp left-hand turn from the slip road onto the motorway. Junctions 30–31 (East Cardiff) were set aside for intermediate additional interchanges at the time of construction. Junction 30 ( Cardiff
Cardiff
Gate) has since been added but there are no current plans to construct Junction 31 (A469 road). Junction 39 can only be used to access the motorway from a single slip road onto the westbound carriageway from the A48 at Junction 38. There is no exit from the motorway at this junction.[36] Junction 41 comprises two different junctions, one for traffic to and from local destinations to the west and one for places to the east. The former leads to and from a spur leading to the roundabout in Briton Ferry, formerly known as Junction 41a, and the original bridge over the River Neath, which would allow access onto the stretch of the M4 from Junction 43 westward. The second, eastern junction leads to and from the A48 towards Port Talbot. As a result, it is possible in both directions to travel almost 2 miles (3.2 km) on the motorway, both joining and then leaving the motorway at "Junction 41".[37] Junction 44 is unusual in that the eastbound entrance dives under the inside of the junction, effectively a creating a "right-turn" on a roundabout. Similarly, slip roads pass under or over the main motorway at Junctions 41 and 42. Maintenance[edit] Maintenance of the section of the motorway within England, some 123 miles (198 km), is the responsibility of the Highways Agency.[38] The section within Wales, some 76 miles (122 km), is the responsibility of the Welsh Government.[39] Proposed developments[edit] Hard shoulder running, from Junction 3 to Junction 12[edit] In 2010 it was announced that hard shoulder running would be introduced from Junction 3 to Junction 12.[40] As of January 2012 no further information is available on the Highways Agency
Highways Agency
Website other than mention of the scheme on the main map showing the network and proposed works where it is proposed that work will start 'post 2015'.[41][42][43] New junctions: 15a, 18a[edit] A new Junction 15a, being considered by Wiltshire
Wiltshire
Council, this would give access to South and Central Swindon
Swindon
as well as to Wroughton, Marlborough and Devizes
Devizes
via the existing A4361, as well as a possible Junction 18a which would connect with the A432 and A4174
A4174
giving better access to Bristol, via Mangotsfield, and also a direct link with Yate.[44] M4 Junction 31[edit] Plans for the "missing" Junction 31, also known as the Thornhill interchange, for which planning permission was originally granted in September 1991 (but subsequently expired), were rekindled after proposals for a new business park on a 125 acres (51 ha) site north of the M4 were submitted in 2007 to Cardiff
Cardiff
Council.[45] The developers of the business park, St Modwen Developments, would likely fund the new junction, which would be on the A469.[46] A freedom of information request in 2010 to Cardiff
Cardiff
Council shows that whilst the land that would enable this junction should continue to be strategically protected, the decision to formally abandon the proposed Junction 31 Thornhill was made in October 2007 and there had been no subsequent mention of it in Cardiff
Cardiff
Council Strategic or Planning meetings since.[47] M4 relief road
M4 relief road
around Newport[edit] Main article: M4 relief road Plans for an 'M4 Relief Road' around Newport were first announced by the Welsh Office
Welsh Office
in 1991, but made little progress. The Welsh Assembly Government revived the scheme as the M4 relief road
M4 relief road
tolled bypass in 2007 but later abandoned it for financial reasons.[48] An extension to the Newport Southern Distributor Road
Southern Distributor Road
through the old Corus steel works is being considered.[49] This road is already a dual carriageway but not open to the public. A public consultation exercise on options for improving the capacity of the M4 corridor
M4 corridor
around Newport opened on 5 March 2012. Its website states that:[50] "the motorway around Newport does not conform to today’s motorway standards. It lacks continuous hard shoulders, has closely spaced junctions with sub-standard slip road visibility and narrows to a restricted two lane section through the Brynglas Tunnels. Heavy congestion occurs along this stretch and either side of it at peak hours." Port Talbot, Junctions 40 and 41[edit] There have been calls to close the slip roads at Junction 40 and 41 (at Port Talbot) to improve traffic flow. The motorway has only two lanes on this stretch and is a major traffic congestion blackspot. Junctions 40 and 41 (at Port Talbot) have very short slip roads which have not been modernised.[51] A small-scale trial of closing the westbound on-slip of Junction 41 between 7 am and 9 am and from 4 pm to 6 pm on weekdays started on 4 August 2014[52][53] but following heavy criticism from local businesses and residents,[54] was stopped on 29 May 2015.[55][56] Incidents and accidents[edit]

In June 1984 a crash near Maidenhead
Maidenhead
resulted in 13 deaths.[57] In March 1991 ten people died in a series of crashes in 1991 involving 51 vehicles near Hungerford.[57] In May 1995 a coach carrying Royal British Legion
Royal British Legion
members left the road close to the Severn Bridge, resulting in 10 deaths.[57] In April 1998, drummer Cozy Powell
Cozy Powell
died following a car accident on the M4 near Bristol. In July 2002, Gus Dudgeon, a music producer known for his work with Elton John, and his wife died when the car he was driving veered off the M4 between Reading and Maidenhead. The inquest recorded a verdict of accidental death.[58] In July 2011 a lorry fire in the Brynglas Tunnels
Brynglas Tunnels
closed the motorway.[59] Although there were no injuries and no deaths, one tunnel remained closed and a contraflow system was in place in the remaining tunnel for about one month, causing major travel delays.[60][61]

Junctions[edit]

M4 motorway

mile km Eastbound exits (B carriageway) Junction Westbound exits (A carriageway)

7.3 11.8 Road continues as A4 to Central London J1 [coord 1] Start of motorway

8.3 8.5 13.4 13.7 North Circular
North Circular
A406 South Circular A205 Chiswick
Chiswick
A315 J2 Staines, Hounslow, Brentford
Brentford
A4

12.5 12.8 20.1 20.6 Heston services Services Heston services

13.4 13.7 21.5 22.1 Heathrow (Terminals 4, 5 & Cargo), Hayes, Harrow, Hounslow
Hounslow
A312 J3 Heathrow (Terminals 4, 5 & Cargo), Hayes, Harrow, Hounslow
Hounslow
A312

15.2 15.7 24.5 25.2 Heathrow (Terminals 1, 2 & 3) (A4) Uxbridge
Uxbridge
A408 J4a Heathrow (Terminals 1, 2 & 3) (A4) Uxbridge
Uxbridge
A408

16.8 17.7 27.0 28.5 Heathrow (Terminals 4, 5 & Cargo) , Gatwick Airport
Gatwick Airport
, Watford (M3), (M23), (M40), (M1) M25 J4b [coord 2] Heathrow (Terminals 4, 5&Cargo), Gatwick, Watford
Watford
(M3), (M23), (M40), (M1), M25

19.1 19.5 30.7 31.4 Colnbrook, Langley, Slough
Slough
(East) A4 Eton, Datchet
Datchet
B470 J5 Colnbrook, Langley, Slough
Slough
(East) A4, Datchet
Datchet
B470

22.9 23.2 36.8 37.4 Slough
Slough
(Central) A355 Windsor A322 J6 Slough
Slough
(Central) A355 Windsor A322

24.7 25.0 39.8 40.3 Slough
Slough
(West) A4 J7 Slough
Slough
(West) A4

27.8 28.2 44.7 45.4 High Wycombe, Henley A404(M) Maidenhead
Maidenhead
A308(M) J8/9 High Wycombe, Henley A404(M) Maidenhead
Maidenhead
A308(M)

35.0 35.8 56.4 57.6 Reading (East), Wokingham, Bracknell
Bracknell
A329(M) J10 Reading (East), Wokingham, Bracknell
Bracknell
A329(M)

40.6 41.2 65.4 66.3 Basingstoke, Reading (Central & South) A33 J11 Basingstoke, Reading (Central & South) A33

43.5 43.8 70.0 70.5 Reading services Services Reading services

45.3 45.7 72.9 73.5 Reading (West), Theale A4 J12 Reading (West), Theale A4

56.9 57.2 91.5 92.1 Newbury, Oxford
Oxford
A34 Chieveley services
Chieveley services
(Moto) J13 Services [coord 3] Newbury, Oxford
Oxford
A34 Chieveley services
Chieveley services
(Moto)

64.4 64.8 103.7 104.3 Hungerford, Wantage
Wantage
A338 J14 Hungerford, Wantage
Wantage
A338

68.7 110.5 Membury services Services Membury services

76.4 77.1 122.9 124.0 Swindon
Swindon
(East) A419 Marlborough A346 Oxford
Oxford
(A420) J15 Swindon
Swindon
A419, Marlborough A346

82.4 82.8 132.6 133.2 Swindon
Swindon
(West), Royal Wootton Bassett, Wroughton, RAF Lyneham, Calne A3102 J16 Swindon
Swindon
(West), Royal Wootton Bassett, Wroughton, RAF Lyneham, Calne A3102

94.8 95.3 152.5 153.4 Chippenham A350 Cirencester
Cirencester
A429 J17 Chippenham A350 Cirencester
Cirencester
A429

96.7 155.7 Leigh Delamere services Services Leigh Delamere services

104.9 105.6 168.8 170.0 Bath, Stroud A46 J18 Bath, Stroud A46

112.8 113.2 181.5 182.1 Bristol
Bristol
M32 J19 Bristol
Bristol
M32

115.8 116.3 186.3 187.2 The SOUTH WEST, Bristol
Bristol
(West), The MIDLANDS, Gloucester
Gloucester
M5 J20 Almondsbury Interchange [coord 4] The SOUTH WEST, Bristol
Bristol
(West) M5(S) The MIDLANDS, Gloucester
Gloucester
M5(N)

117.7 189.5 189.5 190.0 No access J21 Chepstow
Chepstow
M48

121.3 121.6 195.2 195.7 Avonmouth
Avonmouth
M49 J22 Avonmouth
Avonmouth
M49

121.7 124.1 195.9 199.8 Entry into England Second Severn Crossing [coord 5] Entry into Wales

127.0 204.4 No toll plaza Bridge Toll Toll plaza

129.2 208.0 Chepstow
Chepstow
M48 J23 No access

131.4 132.2 211.4 212.8 Magor, Caldicot A4810 Magor services J23A Services Magor, Caldicot A4810 Magor services

134.8 135.6 217.0 218.3 City centre A48 Newport (East) B4237 Monmouth
Monmouth
A449 The MIDLANDS
The MIDLANDS
(M50) J24 City centre A48 Newport (East) B4237 Monmouth
Monmouth
A449

137.9 222.0 No access J25 Caerleon
Caerleon
B4596

138.3 222.6 No access J25A Newport, Cwmbran
Cwmbran
A4042

138.8 139.1 223.4 223.8 Brynglas Tunnels Tunnel Brynglas Tunnels

139.1 139.5 223.8 224.5 Newport, Cwmbran, Caerleon
Caerleon
A4051 J26 Newport A4051

140.8 141,4 226.6 227.6 High Cross B4591 J27 High Cross B4591

142.0 142.9 228.5 230.0 Newport A48 Risca, Brynmawr
Brynmawr
A467 J28 Newport A48 Risca, Brynmawr
Brynmawr
A467

143.6 231.1 No access J29 Cardiff
Cardiff
(East and South) A48(M)

146.6 147.3 236.0 237.0 Cardiff
Cardiff
(East) A4232 Cardiff
Cardiff
Gate services J30 Services Cardiff
Cardiff
(East) A4232 Cardiff
Cardiff
Gate services

151.9 244.5 244.5 246.1 Merthyr Tydfil, Cardiff
Cardiff
A470 J32 Cardiff
Cardiff
(North), Merthyr Tydfil
Merthyr Tydfil
A470

155.4 156.0 250.1 251.1 Cardiff
Cardiff
(West), Barry, Penarth
Penarth
A4232 Cardiff
Cardiff
Airport Cardiff
Cardiff
West services J33 Services Cardiff
Cardiff
(West), Barry, Penarth
Penarth
A4232 Cardiff
Cardiff
Airport Cardiff
Cardiff
West services

157.5 158.1 253.5 254.4 Llantrisant, Rhondda
Rhondda
A4119 Royal Glamorgan Hospital J34 Llantrisant, Rhondda
Rhondda
A4119 Royal Glamorgan Hospital

163.9 164.4 263.7 264.5 Pen-coed A473 J35 Bridgend, Pen-coed A473

167.5 168.3 269.6 270.8 Bridgend
Bridgend
A4061 Maesteg
Maesteg
A4063 Princess of Wales Hospital Sarn Park services J36 Services Bridgend
Bridgend
A4061 Maesteg
Maesteg
A4063 Princess of Wales Hospital Sarn Park services

172.8 173.5 278.1 279.3 Pyle, Porthcawl
Porthcawl
A4229 J37 Porthcawl, Pyle
Pyle
A4229

177.0 177.3 284.9 285.3 Port Talbot
Port Talbot
A48 J38 Port Talbot
Port Talbot
A48

178.3 286.9 No access (on-ramp only) J39 No access

179.7 179.9 289.2 289.6 Port Talbot
Port Talbot
A4107 J40 Port Talbot
Port Talbot
A4107

180.9 181.3 291.1 291.8 Port Talbot
Port Talbot
A48 J41 Briton Ferry
Briton Ferry
A48

183.9 184.9 295.9 297.3 Briton Ferry
Briton Ferry
A48 Swansea
Swansea
(South) A483 J42 Swansea
Swansea
(South) A483

184.9 185.7 297.5 298.8 Neath, Merthyr Tydfil
Merthyr Tydfil
A465 J43 Neath, Merthyr Tydfil
Merthyr Tydfil
A465

187.0 187.4 300.9 301.6 Swansea
Swansea
(East) A48 J44 Swansea
Swansea
(East) A48

188.8 189.3 303.9 304.7 Pontardawe, Swansea
Swansea
(North) A4067 J45 Pontardawe, Swansea
Swansea
(North) A4067

190.8 191.4 307.0 308.0 Llangyfelach
Llangyfelach
B4489 Felindre Morriston Hospital J46 Llangyfelach
Llangyfelach
B4489 Felindre Morriston Hospital

192.4 193.1 309.6 310.7 Swansea
Swansea
(West) A483 Gorseinon
Gorseinon
A48 Swansea
Swansea
services J47 Services Swansea
Swansea
(West) A483 Gorseinon
Gorseinon
A48 Swansea
Swansea
services

196.4 197.1 316.0 317.2 Pontarddulais, Llanelli
Llanelli
A4138 J48 Pontarddulais, Llanelli
Llanelli
A4138

199.2 320.6 Start of motorway J49 Terminus Services [coord 6] Motorway
Motorway
terminates at a roundabout: Carmarthen
Carmarthen
A48 Ammanford, Llandeilo
Llandeilo
A483 Pontarddulais
Pontarddulais
A48 Pont Abraham
Pont Abraham
services

Data[62][63][64][65] from driver location signs and location marker posts are used to provide distance and carriageway identification information. Where a junction spans several hundred metres and the data is available, both the start and finish values for the junction are shown.

1.000 mi = 1.609 km; 1.000 km = 0.621 mi

      Incomplete access       Tolled

Coordinate list

^ 51°29′22″N 0°16′40″W / 51.48944°N 0.27778°W / 51.48944; -0.27778 (Start of M4) Eastern end of M4 ^ 51°29′41″N 0°29′44″W / 51.49472°N 0.49556°W / 51.49472; -0.49556 (Junction 5b of M4) Intersection of M25 and M4 ^ 51°27′14″N 1°18′52″W / 51.45389°N 1.31444°W / 51.45389; -1.31444 (Junction 13 of M4) Intersection of M4 and A34(E05) ^ 51°33′01″N 2°33′11″W / 51.55028°N 2.55306°W / 51.55028; -2.55306 (J20 of M4) Almondsbury Interchange
Almondsbury Interchange
– Intersection of M4 and M5 ^ 51°34′21″N 2°41′31″W / 51.57250°N 2.69194°W / 51.57250; -2.69194 (M4 Severn Crossing) Second Severn Crossing ^ 51°44′42″N 4°03′54″W / 51.74500°N 4.06500°W / 51.74500; -4.06500 (End of M4) Western end of M4

See also[edit]

Roads portal Geography portal

M4 Thames Bridge, Maidenhead List of motorways in the United Kingdom Transport in Wales

References[edit]

^ "Directions to M4, Hendy, Swansea". Google. Retrieved 11 February 2017.  ^ "The M4 London
London
to South Wales
South Wales
Motorway. Holyport to Tormarton". The Motorway
Motorway
Archive Trust. Retrieved 3 October 2010.  ^ Curtis, Nick (1 October 2009). "The 'sweet little Chiswick
Chiswick
Flyover' hits 50". This Is London. Archived from the original on 21 March 2011. Retrieved 3 March 2012. The showbiz opening on 30 September 1959 was therefore a shrewd publicity stunt by Alderton's managing director, J E Dayton. It worked.  ^ "THE OLDEST MOTORWAY". The Motorway
Motorway
Archive Trust. Archived from the original on 22 January 2010. Retrieved 3 March 2012.  ^ "The M4 in Wales". The Motorway
Motorway
Archive Trust. Archived from the original on 22 January 2011. Retrieved 1 October 2010.  ^ "On the road". The Motor. nbr 3625: Page 30. 23 December 1971.  ^ "The Motorway
Motorway
Archive: M4 Second Severn Crossing". Iht.org. 28 April 1992. Archived from the original on 7 February 2012. Retrieved 31 December 2011.  ^ a b "Does this look like a U-turn?". BBC. 18 January 2001. Retrieved 12 May 2010.  ^ a b c "Stretch of M4 bus lane
M4 bus lane
opens to all motorists". BBC News. 16 November 2010. Retrieved 16 November 2010.  ^ "Drivers hold M4 speed camera demo". BBC News. 30 April 2005.  ^ ": : M4 Motorway
Motorway
Widening : :". web.archive.org. Archived from the original on 15 January 2008. Retrieved 20 November 2010.  ^ "M4 in Wales to be 'hydrogen highway,' ministers to say". BBC News. 12 February 2010. Retrieved 12 February 2010.  ^ Fraser, Douglas (8 September 2009). "'Hydrogen highway' plans backed". BBC News. Retrieved 12 February 2010.  ^ "Government to scrap M4 bus lane". BBC News. 1 October 2010. Retrieved 1 October 2010. The controversial M4 bus lane
M4 bus lane
is due to be scrapped at the end of the year. Under the plans, all motorists will be able to use the 3.5 miles (5.6 km) lane which operates on the London-bound carriageway from near Heathrow  ^ "M4 Junction 11 Improvement Scheme". Highways Agency. Archived from the original on 26 June 2009.  ^ "M4 Junction 11 Improvements". Reading Borough Council. Archived from the original on 13 July 2010.  ^ "Reading is the fastest-growing economic centre in UK". Reading Chronicle. 10 July 2007.  ^ "M4 VICKERS MACHINE GUN PILLBOX, PILLBOX STUDY GROUP". Pillbox-study-group.org.uk. 11 April 2008. Archived from the original on 8 September 2012. Retrieved 31 December 2011.  ^ "Dates:M4. Chiswick
Chiswick
to Slough
Slough
By-pass (J1 to J5)". The Motorway Archive Trust. Retrieved 13 March 2013.  ^ "Dates:M4 Slough- Maidenhead
Maidenhead
By-pass (Junctions 5 to 7) Statistics and options". The Motorway
Motorway
Archive Trust. Retrieved 13 March 2013.  ^ "Dates:M4. Maidenhead
Maidenhead
to Wickham (J8 to J14) Statistics and options". The Motorway
Motorway
Archive Trust. Retrieved 13 March 2013.  ^ "Dates:The Aust (J21) to Wickham (J14) section of M4 Statistics and options". The Motorway
Motorway
Archive Trust. Retrieved 13 March 2013.  ^ "Dates:M4 in Wales Statistics and options". The Motorway
Motorway
Archive Trust. Retrieved 13 March 2013.  ^ "History Overview". Severn River Crossing Plc. 2011. Archived from the original on 15 March 2013. Retrieved 16 March 2013.  ^ "Second Severn Crossing, England and Wales – Halcrow Group". Halcrow.com. 29 October 2009. Archived from the original on 10 March 2010. Retrieved 16 March 2013.  ^ "Speed cameras slow bridge traffic". BBC News. 5 October 2004.  ^ "Average speed cameras for Port Talbot
Port Talbot
M4 stretch". BBC South West Wales. 14 July 2014. Retrieved 14 July 2014.  ^ "M4 speed cameras generate half a million pounds". itv.com. 2015-06-16. Retrieved 2016-03-05.  ^ Edwards, Tom (11 September 2009). " M4 bus lane
M4 bus lane
is 'barely enforced'". BBC News. Retrieved 12 May 2010.  ^ "Work starts to remove M4 Bus Lane". Highways Agency. Archived from the original on 7 July 2012. The suspension of the M4 Bus Lane is being carried out under an Experimental Order under the Road Traffic Regulation Act 1984  ^ "2006 Fourth quarter foundation magazine – Operations and products" (PDF). Hanson.biz. 31 May 2011. Archived from the original (PDF) on 30 May 2008. Retrieved 31 December 2011.  ^ "One More Link to the West". New Scientist: 772. 25 March 1965.  ^ Thornes, John Edward (1984). The Prediction of Ice Formation on Motorways in Britain (PDF) (Ph. D.). University College London. Retrieved 1 November 2015.  ^ "M4 J19-20 and M5 J15-17 Managed Motorways". Highways Agency. Retrieved 18 February 2012.  ^ "This Sceptred Isle". Notes and Queries. Guardian. Retrieved 14 February 2016.  ^ "M4 Exit List". CBRD. Archived from the original on 25 January 2016. Retrieved 14 February 2016.  ^ "The M4 Motorway
Motorway
(Junction 41, Westbound Exit Slip Road, Sunnycroft Roundabout, Baglan, Neath
Neath
Port Talbot) (50 MPH Speed Limit) Regulations 2010" (PDF). Assembly for Wales. Retrieved 14 February 2016.  ^ Highways Agency: Our network Archived 14 March 2013 at the Wayback Machine.. Retrieved 8 March 2013 ^ Welsh Government: Roads. Retrieved 8 March 2013 ^ "Planned improvements to Britain's transport infrastructure" (PDF).  ^ "Network Management Map".  ^ "M4 junctions 3 to 12 smart motorway" (PDF). Highways Agency. Retrieved 27 December 2015.  ^ "M4 Junctions 3-12: Smart Motorway". Highways Agency. Retrieved 27 December 2015.  ^ "Road Report For South Gloucestershire". South Gloucestershire County Council. 20 November 2011. Archived from the original on 20 April 2011.  ^ "Council will look again at case for M-way link". icwales. 23 June 2007.  ^ "Business park plan 'would hit green land'". icwales. 19 December 2007.  ^ Salmon, Jeff. "M4 J31 Freedom of information act". www.whatdotheyknow.com. Retrieved 3 January 2016.  ^ "Plans for the M4 Toll (Newport)". BBC News. 20 September 2007. Retrieved 12 May 2010.  ^ "The New M4 Project – Magor to Castleton". Welsh Assembly Government. 13 July 2009.  ^ M4 corridor
M4 corridor
enhancement measures: Overview. Accessed 5 March 2012 ^ "Are M4 plans on the right track?". South Wales
South Wales
Evening Post. 12 December 2007.  ^ "Twice-a-day trial closure of Port Talbot
Port Talbot
M4 junction starts". BBC News. 4 August 2014.  ^ "Controversial twice-day closure of M4 junction in Port Talbot starts". Wales Online. 4 August 2014.  ^ "200 attend meeting over M4 junction 41 Port Talbot
Port Talbot
closure". BBC News. 12 March 2015.  ^ "M4 Port Talbot
Port Talbot
junction 41 trial closures end". BBC News. 29 May 2015.  ^ "Temporary closures of Port Talbot's M4 junction 41 are called off but slip road's future remains in doubt". Wales Online. 29 May 2015.  ^ a b c "Death toll on British roads". Daily Mail. London. 13 died in a crash on the M4 near Maidenhead, Berks, in June 1984.  ^ "Record producer dies in crash". BBC News
BBC News
Online. 22 July 2002. Retrieved 13 February 2015.  ^ "Traffic chaos after M4 Brynglas tunnel lorry blaze". BBC News. 26 July 2011. Retrieved 9 April 2013.  ^ "M4 tunnel fire: Brynglas tunnel reopens". BBC News. 29 July 2011. Retrieved 9 April 2013.  ^ "M4 tunnel fire sparks relief road debate". BBC News. 27 July 2011. Retrieved 9 April 2013.  ^ Area 3 Driver Location Signs (map) – Highway Authority, 2009 ^ Driver Location Signs, M5 J18-11, M4 J22-15 (map) Highway Authority 2009 ^ "Traffic England Live Traffic Condition Map (selected Popups)". Highways Agency. Archived from the original on 10 February 2012. Retrieved 5 November 2009.  ^ "Resources". Traffig Cymru/Traffic Wales. Archived from the original on 3 September 2011. Retrieved 22 August 2011. Select Telephone & marker post locations. 

Further reading[edit]

Jackson, Mike (2005). The M4 Sights Guide. Severnpix. ISBN 978-0954540227. 

External links[edit]

Wikimedia Commons has media related to M4 motorway.

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Template:Attached KML/M4 motorway KML is from Wikidata

CBRD Motorway
Motorway
Database – M4 British Road Database: Motorways – M4 Junction 8/9 The Motorway
Motorway
Archive

Junctions 1 to 5 Junctions 5 to 7 Junctions 8 to 14 Junctions 14 to 21 Junctions 21 to 23 Junctions 23 to 49

Map of the preferred route around Newport (relief road)

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Motorways in the United Kingdom

Great Britain

M1 M2 M3 M4 M5 M6 M6 Toll M8 M9 M11 M18 M20 M23 M25 M26 M27 M32 M40 M42 M45 M48 M49 M50 M53 M54 M55 M56 M57 M58 M60 M61 M62 M65 M66 M67 M69 M73 M74 M77 M80 M90 M180 M181 M271 M275 M602 M606 M621 M876 M898

A1(M) A3(M) A8(M) A38(M) A48(M) A57(M) A58(M) A64(M) A66(M) A74(M) A167(M) A194(M) A308(M) A329(M) A404(M) A601(M) A627(M) A823(M)

Northern Ireland

M1 M2 M3 M5 M12 M22 A8(M)

Former

M10 M41 M63 A18(M) A40(M) A41(M) A102(M) A6144(M)

Unbuilt

M12 M15 M16 M31 M64

Proposed

M4 relief road

Junctions

Almondsbury Catthorpe Gravelly Hill Handy Cross Longbridge Switch Island Thorpe Thurcroft

Related articles

Highways England Preston By-pass Smart motorway

Category Commons

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Roads in London

Roads

Motorways

M1 M4 M11

Ring roads

London
London
Ringways South Circular Road North Circular
North Circular
Road London
London
Inner Ring Road M25 London
London
Orbital

Major roads

A1 A10 A11 A12 A127 A13 A2 A20 A23 A3 A316 A4 A40 A41 A5

Other

London
London
congestion charge

Transport in England
Transport in England
by local authority

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Transport in Bristol

Road

Motorways

Almondsbury Interchange M4 M5 M32 M49

European Routes

E30

A roads

A4 (Portway) A37 A38 A369 A370 A403 A420 A431 A432 A4018 A4174 A4032

Bus

Bristol
Bristol
bus station Bristol
Bristol
park & ride Buses in Bristol First West of England MetroBus Portway park and ride Wessex Bus

Cycling

National Cycle Route 3 National Cycle Route 4
National Cycle Route 4
( Bristol
Bristol
& Bath Railway Path)

Rail

Railway lines

Bristol–Exeter line Cross Country Route Filton Bank Great Western Main Line Henbury Loop Line Portishead Railway Severn Beach line South Wales
South Wales
Main Line

Stations

Avonmouth Bedminster Bristol
Bristol
Parkway Bristol
Bristol
Temple Meads Clifton Down Filton Abbey Wood Lawrence Hill Montpelier Parson Street Redland Sea Mills Severn Beach Shirehampton St Andrews Road Stapleton Road

Other

Bristol
Bristol
Airport Rail Link Bristol
Bristol
Supertram Bristol
Bristol
Tramways Clifton Rocks Railway Friends of Suburban Bristol
Bristol
Railways MetroWest Narroways Hill Junction Rail services in the West of England Severnside Community Rail Partnership

Air

Bristol
Bristol
Airport

Water

Avonmouth
Avonmouth
Docks Bristol
Bristol
Packet Boat Trips Bristol
Bristol
Ferry Boats Bristol
Bristol
Harbour Bristol
Bristol
Marina Cumberland Basin Kennet & Avon Canal Netham Lock Port of Bristol Royal Portbury Dock River Avon Underfall Yard

Public transport

Public transport in Bristol

Bridges

Avon Bridge Avonmouth
Avonmouth
Bridge Bristol
Bristol
Bridge Clifton Suspension Bridge Pero's Bridge Prince Street Bridge

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Transport in Buckinghamshire

Road

Motorways

M1 M4 M25 M40

A-roads

A4 A40 A41 A404 A412 A413 A418 A421 A422 A428 A4010 A4012 A4146 A4155 A5 A508 A509 A5130

Roman roads

Akeman Street Watling Street

Notable junctions

Handy Cross roundabout Denham Roundabout Magic Roundabout
Roundabout
(High Wycombe)

Motorway
Motorway
service stations

Beaconsfield Newport Pagnell

Rail

Main lines

West Coast Main Line Chiltern Main Line Great Western main line

Other lines

Marston Vale line London–Aylesbury line Metropolitan line Aylesbury–Princes Risborough line Marlow branch line

Closed lines

Varsity Line Great Central Main Line Banbury to Verney Junction branch line Brill Tramway Wycombe Railway Watlington and Princes Risborough Railway Cheddington to Aylesbury Line Aylesbury and Buckingham Railway Wolverton–Newport Pagnell line Bedford–Northampton line

Other

Chinnor and Princes Risborough Railway East West Rail Buckinghamshire
Buckinghamshire
Railway Centre Seer Green rail crash

Air

Denham Aerodrome Turweston Aerodrome Silverstone Heliport Wycombe Air Park

Waterways

Rivers

River Thames River Great Ouse

Canals

Bedford & Milton Keynes
Milton Keynes
Waterway (planned) Grand Union Canal

Slough
Slough
Arm Wendover Arm Aylesbury Arm

Footpaths

National Trails

Thames Path The Ridgeway

Long-distance footpaths

Icknield Way
Icknield Way
(path) Chiltern Way Greater Ridgeway Midshires Way Ouse Valley Way Shakespeare's Way Swan's Way

Cycle paths

Route 4 Route 6 Route 51

Related articles

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Transport in Milton Keynes

Road

Milton Keynes
Milton Keynes
grid road system A421 A422 A4146 A5 A509 A5130 H6 Childs Way H10 Bletcham Way V6 Grafton Street V8 Marlborough Street

Rail

Bletchley railway station Bletchley TMD Bow Brickhill railway station East West Rail Fenny Stratford railway station Marston Vale line Milton Keynes
Milton Keynes
Central railway station Varsity Line West Coast Main Line Woburn Sands railway station Wolverton railway station Wolverton–Newport Pagnell line

Bus

Buses in Milton Keynes Arriva Shires & Essex Milton Keynes
Milton Keynes
Coachway MK Metro Stagecoach in Northants United Counties Omnibus

Water

Bedford & Milton Keynes
Milton Keynes
Waterway (under construction) Cosgrove aqueduct Grand Union Canal

Other transport

Milton Keynes
Milton Keynes
redway system Watling Street Wolverton and Stony Stratford Tramway

v t e

Transport in London

Companies and organisations

Transport for London

Air Line Buses

East London
London
Transit Night buses

Coach station Cycle hire Dial-a-Ride London
London
Rail

Docklands Light Railway London
London
Overground TfL Rail Tramlink Crossrail
Crossrail
(under construction) Crossrail
Crossrail
2 (proposed)

London
London
River Services London
London
Streets London
London
Underground

Night Tube

Source London Taxi and Private Hire office

Bus operators

Abellio Arriva East Herts & Essex Arriva London Arriva Southern Counties CT Plus Go-Ahead London London
London
Sovereign London
London
United Metrobus Metroline Quality Line Stagecoach London Tower Transit Uno

River operators

Bateaux London City Cruises Crown River Cruises Livett's Launches Lower Thames and Medway Passenger Boat Company Thames Clippers Thames Executive Charters Thames River Services Westminster Passenger Services Association

Train operators

Arriva Rail London c2c Caledonian Sleeper Chiltern Railways East Midlands Trains Eurostar Govia Thameslink
Thameslink
Railway

Gatwick Express Great Northern Southern Thameslink

Grand Central Great Western Railway Greater Anglia

Stansted Express

Heathrow Connect Heathrow Express Hull Trains London
London
Northwestern Railway South Western Railway Southeastern TfL Rail Virgin Trains
Virgin Trains
(West Coast) Virgin Trains
Virgin Trains
East Coast

Other

Global Infrastructure Partners Heathrow Airport
Heathrow Airport
Holdings Port of London
London
Authority

Airports

Within London

City Heathrow Private: Biggin Hill Damyns Hall London
London
Heliport Military: Northolt

Outside London

Gatwick Luton Southend Stansted Proposed: Thames Estuary

Major stations

Central area

Bank/Monument Baker Street Blackfriars Bond Street Cannon Street Charing Cross City Thameslink Euston Farringdon Fenchurch Street King's Cross Liverpool Street London
London
Bridge Marylebone Moorgate Oxford
Oxford
Circus Paddington St Pancras International Tottenham Court Road Vauxhall Victoria Waterloo Waterloo East Westminster

Other

Barking Bromley South Canary Wharf Clapham Junction Ealing
Ealing
Broadway East Croydon Finsbury Park Heathrow Stations Highbury & Islington Ilford Lewisham London
London
City Airport Orpington Putney Richmond Romford Stratford Surbiton Sutton Wimbledon

Roads

Motorways

M1 M4 M11 M25 London
London
Orbital Former: M41 (West Cross Route) A40(M) (Westway) A102(M) (East Cross Route)

Ring roads

London
London
Inner Ring Road London
London
Ringways North Circular
North Circular
Road South Circular Road

Charging

Congestion charge Low emission zone

Ticketing

Freedom Pass Oyster card Travelcard

Other

History of public transport authorities London
London
Transport Museum Port of London Regent's Canal Cycle routes Thameslink Trams Trolleybuses Windsor House

Former BR sectors

British Rail InterCity Network SouthEast

Category Commons WikiProject

v t e

Trunk Roads in Wales

Managed by the North and Mid Wales Trunk Road Agent

Bangor - Chirk Trunk Road (A5) London
London
- Fishguard Trunk Road (A40) Newtown - Aberystwyth Trunk Road (A44) Holyhead - Chester Trunk Road (A55) Shropshire Boundary - Mallwyd Trunk Road (A458) Cardiff
Cardiff
- Glan Conwy Trunk Road (A470) Glanusk Park (Crickhowell) - Llyswen Trunk Road (A479) Swansea
Swansea
- Manchester Trunk Road (A483) Fishguard - Bangor Trunk Road (A487) Newtown - Machynlleth Trunk Road (A489) Dolgellau - South of Birkenhead Trunk Road (A494)

Managed by the South Wales Trunk Road Agent

M4 motorway M48 motorway A48(M) motorway London
London
- Fishguard Trunk Road (A40) Chepstow
Chepstow
- Carmarthen
Carmarthen
Trunk Road (A48) Newport - Worcester Trunk Road (A449) Neath
Neath
- Abergavenny Trunk Road (A465) Chepstow
Chepstow
- Monmouth
Monmouth
Trunk Road (A466) Cardiff
Cardiff
- Glan Conwy Trunk Road (A470) St Clears - Pembroke Dock Trunk Road (A477) Swansea
Swansea
- Manchester Trunk Road (A483) Fishguard - Bangor Trunk Road (A487) Newport - Shrewsbury Trunk Road (A4042) East of Abercynon - East of Dowlais Trunk Road (A4060) Haverfordwest - Milford Haven Trunk Road (A4076) A4232 Trunk Road (Capel Llanilltern – Culverhouse Cross Link Road) (A4232)

Related topics and further information

Trunk roads in Wales Trunk road agent North and Mid Wales Trunk Road Agent South Wales
South Wales
Trunk Road Agent Welsh Government
Welsh Government
Traffic Officer Highways in England and Wales List of UK motorways List of UK A roads beginning with 4 List of UK A roads beginning with 5

 Roads in Wales     Commons:Roads in Wales      Roads Portal      Wales Portal

Transport in Wales
Transport in Wales
by local authority

v t e

Transport in Bridgend
Bridgend
county borough

Roads

M4 motorway European route E30 A48 road A473 road A4061 road A4063 road

Bus

First Cymru National Express Bridgend
Bridgend
bus station

Cycling

National Cycle Route 4 National Cycle Route 88

Railway lines

South Wales
South Wales
Main Line Maesteg
Maesteg
Line Vale of Glamorgan
Vale of Glamorgan
Line

Railway stations

Bridgend Garth Maesteg Maesteg
Maesteg
(Ewenny Road) Pencoed Pyle Sarn Tondu Wildmill

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Transport in Cardiff

Motorways and A roads

M4 motorway European route E30 A48(M) motorway A48 road A470 road A469 road A4054 road A4119 road A4160 road A4161 road A4232 road

Pedestrian precincts and commercial streets

Bute Street Caroline Street Cathedral Road City Road Cowbridge Road East Cowbridge Road West St Mary Street and High Street Lloyd George Avenue Newport Road West Grove Womanby Street

Bus

Bus transport in Cardiff Cardiff
Cardiff
Central bus station Cardiff
Cardiff
Bus Iff card Stagecoach South Wales NAT Group Free b
Free b
city shuttle Baycar Capital City Red Capital City Green

Cycling

Cycling in Cardiff Taff Trail Lôn Las Cymru Ely Valley Trail NCR 88 Pont y Werin

Railway lines and operators

Rail transport in Cardiff South Wales
South Wales
Main Line Valley lines ■ Butetown branch ■ City Line ■ Coryton Line ■ Maesteg
Maesteg
Line ■ Merthyr line ■ Rhondda
Rhondda
line ■ Rhymney line ■ Vale of Glamorgan
Vale of Glamorgan
Line Arriva Trains Wales CrossCountry Great Western Railway

Major railway stations

Cardiff
Cardiff
Central Cardiff
Cardiff
Queen Street

Other city railway stations

Birchgrove Cardiff
Cardiff
Bay Cathays Coryton Danescourt Fairwater Grangetown Heath High Level Heath Low Level Lisvane and Thornhill Llandaf Llanishen Ninian Park Radyr Rhiwbina Ty Glas Waun-gron Park Whitchurch List of railway stations in Cardiff

Air

Cardiff
Cardiff
Airport Cardiff
Cardiff
Heliport

Water

Cardiff
Cardiff
Waterbus Tiger Bay River Taff River Ely Cardiff
Cardiff
Bay Barrage

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Transport in Carmarthenshire

Roads

M4 motorway European route E30 A40 road A48 road A474 road A475 road A476 road A478 road A482 road A483 road A484 road A485 road A486 road A4069 road A4138 road A4213 road A4214 road A4242 road

Bus

First Cymru National Express

Cycling

Celtic Trail NCR 4

Railway lines

West Wales lines Heart of Wales line Swansea
Swansea
District line Gwili Railway

Railway stations

Heart of Wales line

Bynea Ffairfach Llandeilo Llandovery Llandybie Llangadog Llangennech Cynghordy Llanwrda Pantyffynnon

West Wales line

Carmarthen Ferryside Kidwelly Llanelli Pembrey and Burry Port Whitland

Gwili Railway

Bronwydd Arms Llwyfan Cerrig Danycoed

Air

Pembrey Airport

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Transport in Monmouthshire

Road

M4 motorway European route E30 M48 motorway A40 road A449 road A465 road A472 road A4042 road A4136 road

Bus

Stagecoach South Wales Stagecoach West Newport Bus

National Cycle Network

Celtic Trail National Cycle Route 4 National Cycle Route 47 National Cycle Route 42

Railway lines

South Wales
South Wales
Main Line Gloucester–Newport line Welsh Marches line

Railway stations

Abergavenny Caldicot Chepstow Severn Tunnel Junction

Waterways

Monmouthshire
Monmouthshire
and Brecon Canal River Wye

v t e

Transport in Neath Port Talbot
Neath Port Talbot
county borough

Road

M4 motorway European route E30 A48 road A465 road A474 road A483 road A4063 road A4107 road A4067 road A4069 road A4109 road A4221 road A4230 road A4241 road

Bus

First Cymru National Express Neath
Neath
bus station Neath
Neath
railway station Port Talbot
Port Talbot
bus station

Cycling

National Cycle Route 4 National Cycle Route 43

Railway lines

South Wales
South Wales
Main Line Swansea
Swansea
District line

Railway stations

Skewen Neath Briton Ferry Baglan Port Talbot
Port Talbot
Parkway Margam Knuckle Yard

Sea

Port Talbot
Port Talbot
Docks River Neath

Canals

Neath
Neath
and Tennant Canal

v t e

Transport in Newport

Road

M4 motorway European route E30 A48(M) motorway New M4 A48 road A449 road A468 road A4042 road

Bus

Newport bus station Newport Bus National Express Stagecoach South Wales Cardiff
Cardiff
Bus

Railway lines

South Wales
South Wales
Main Line Welsh Marches line Gloucester–Newport line Ebbw Valley Railway

Railway stations

Newport Pye Corner Rogerstone Proposed:

Caerleon Llanwern Newport West Newport West Central

Cycling

NCR 4 NCR 46 NCR 47

Walking

Wales Coast Path Usk Valley Walk Cistercian Way

Waterways

River Usk Monmouthshire
Monmouthshire
and Brecon Canal Fourteen Locks

Sea

Newport Docks

Transporter bridge

Newport Transporter Bridge

v t e

Transport in Rhondda
Rhondda
Cynon Taf

Roads

M4 motorway European route E30 A465 A468 A470 A473 A4054 A4058 A4059 A4061 A4093 A4107 A4109 A4119 A4222 A4223 A4225 A4233

Bus

Stagecoach South Wales First Cymru NAT Group

Cycling

NCR 4 Taff Trail Lôn Las Cymru Celtic Trail

Railway lines

Maesteg
Maesteg
Line Merthyr line Rhondda
Rhondda
line South Wales
South Wales
Main Line

Railway stations

Abercynon Aberdare Cwmbach Dinas Rhondda Fernhill Hirwaun Llanharan Llwynypia Merthyr Tydfil Merthyr Vale Mountain Ash Penrhiwceiber Pontyclun Pontypridd Porth Quakers Yard Taffs Well Ton Pentre Tonypandy Treforest Treforest Estate Trehafod Treherbert Treorchy Troed-y-rhiw Ynyswen Ystrad Rhondda

v t e

Transport in Swansea

Roads

M4 motorway European route E30 A48 road A483 road A484 road A4067 road A4216 road A4217 road A4240 road A4118 road

Bus

First Cymru Gorseinon
Gorseinon
bus station Gower Explorer Metro (Route 4) National Express Swansea
Swansea
bus station

Cycling

Celtic Trail National Cycle Route 4 National Cycle Route 43

Railway lines

South Wales
South Wales
Main Line West Wales line Heart of Wales line Swansea
Swansea
District line

Railway stations

Gowerton Llansamlet Pontarddulais Swansea

Air

Swansea
Swansea
Airport

Waterways

River Tawe Swansea
Swansea
Canal Tennant Canal

Sea

Swansea
Swansea
docks Swansea
Swansea
Marina Swansea
Swansea
Cork ferry (Fastnet

.