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Latest live M4 trade news

The M4 is a categorical track opposite a south of a UK, regulating between London and South Wales. Heading west, a M4 runs around Slough, Reading, Swindon, Bristol, Newport, Cardiff and Swansea. Like many UK motorways a M4 has a trade prohibited spots, many particularly where it joins with a M25 to a west of London and where it meets a M5 nearby Bristol. And of course, roadworks, accidents and other trade problems can always open adult to means delays.

At a Welsh finish of a motorway a M4 crosses a River Severn regulating a fee bridge, a final of usually 3 left on a UK motorway network. Tolls are charged in a westerly direction, therefore drivers are charged to enter Wales, though not to enter England. The M4 uses a second Severn crossing, that non-stop in 1996 while a strange Severn crossing, built in 1966, now carries a M48.

• M5 traffic: live news updates

Generally a infancy of a M4 tends to stay comparatively clear, though a 189-mile track can see additional overload during rush hour and summer holidays. If you’re formulation to use any territory of a M4 motorway, this page will be a useful assist for transport alerts, live updates and an occurrence map for both westbound and eastward lanes.

Tweets

Scroll down to find live tweets from a Highways Agency, executive military accounts and other trade news feeds.

M4 live trade map

If there is trade intrusion on a M4 we can keep adult to date on any delays with a live and invariably updated M4 trade map.

The map next shows live updates on a stream disrupted areas of a M4 for roadworks, accidents or ubiquitous overload causing delays on a route…

M4 continue report

Details of a latest continue warnings in a M5 area from a Met Office…

• Met Office South West continue report

The story of a M4 

The Ministry of Transport initial due a new highway from London to South Wales in a 1930s. Plans for a M4 as one of a initial vital post-war case roads were constructed in 1956 and construction began in 1961. The Chiswick flyover, a brief territory of towering dual-carriageway built to revoke a impact of trade travelling between executive London and a west, non-stop in 1959 and after became partial of a new M4 route. The territory from J18 to a west of Newport was non-stop in 1966, including a Severn Bridge, that is now partial of a M48.

The English territory of a motorway was finished in Dec 1971 when a 50-mile widen between Maidenhead and Swindon was non-stop for open use. The Welsh territory was finished in 1993, when a Briton Ferry overpass opened. The Second Severn Crossing non-stop in 1996, and motorways on possibly side of a stream carried a M4 over a new channel when construction was finally completed. 

M4 junctions

All of a M4 junctions on a southbound and northbound carriageways are minute below… 

Eastbound exits (B carriageway)JunctionWestbound exits (A carriageway)Road continues as A4 to Central LondonJ1Start of motorwayNorth Circular A406

South Circular A205

Chiswick A315

J2Staines, Hounslow, Brentford A4Heston servicesServicesHeston servicesHeathrow  (Terminals 4, 5 Cargo), Hayes, Harrow, Hounslow A312J3Heathrow  (Terminals 4, 5 Cargo), Hayes, Harrow, Hounslow A312Heathrow  (Terminals 1, 2 3) (A4)

Uxbridge A408

J4aHeathrow  (Terminals 1, 2 3) (A4)

Uxbridge A408

Heathrow (Terminals 4, 5 Cargo) , Gatwick Airport , Watford (M3), (M23), (M40), (M1) M25J4bHeathrow (Terminals 4, 5Cargo), Gatwick, Watford (M3), (M23), (M40), (M1), M25Colnbrook, Langley, Slough (East) A4

Eton, Datchet B470

J5Colnbrook, Langley, Slough (East) A4, Datchet B470Slough (Central) A355

Windsor A322

J6Slough (Central) A355

Windsor A322

Slough (West) A4J7Slough (West) A4High Wycombe, Henley A404(M)

Maidenhead A308(M)

J8/9High Wycombe, Henley A404(M)

Maidenhead A308(M)

Reading (East), Wokingham, Bracknell A329(M)J10Reading (East), Wokingham, Bracknell A329(M)Basingstoke, Reading (Central South) A33J11Basingstoke, Reading (Central South) A33Reading servicesServicesReading servicesReading (West), Theale A4J12Reading (West), Theale A4Newbury, Oxford A34

Chieveley services (Moto)

J13

Services

 

Newbury, Oxford A34

Chieveley services (Moto)

Hungerford, Wantage A338J14Hungerford, Wantage A338Membury servicesServicesMembury servicesSwindon (East) A419

Marlborough A346

Oxford (A420)

J15Swindon A419, Marlborough A346Swindon (West), Royal Wootton Bassett, Wroughton, RAF Lyneham, Calne A3102J16Swindon (West), Royal Wootton Bassett, Wroughton, RAF Lyneham, Calne A3102Chippenham A350

Cirencester A429

J17Chippenham A350

Cirencester A429

Leigh Delamere servicesServicesLeigh Delamere servicesBath, Stroud A46J18Bath, Stroud A46Bristol M32J19Bristol M32The SOUTH WEST, Bristol (West), The MIDLANDS, Gloucester M5J20

Almondsbury Interchange

The SOUTH WEST, Bristol (West) M5(S)

The MIDLANDS, Gloucester M5(N)

No accessJ21Chepstow M48Avonmouth M49J22Avonmouth M49Entry into EnglandSecond Severn CrossingEntry into WalesNo fee plazaBridge TollToll plazaChepstow M48J23No accessMagor, Caldicot A4810

Magor services

J23A

Services

Magor, Caldicot A4810

Magor services

City centre A48

Newport (East) B4237

Monmouth A449

The MIDLANDS (M50)

J24City centre A48

Newport (East) B4237

Monmouth A449

No accessJ25Caerleon B4596No accessJ25ANewport, Cwmbran A4042Brynglas TunnelsTunnelBrynglas TunnelsNewport, Cwmbran, Caerleon A4051J26Newport A4051High Cross B4591J27High Cross B4591Newport A48

Risca, Brynmawr A467

J28Newport A48

Risca, Brynmawr A467

No accessJ29Cardiff (East and South) A48(M)Cardiff (East) A4232

Cardiff Gate services

J30

Services

Cardiff (East) A4232

Cardiff Gate services

Merthyr Tydfil, Cardiff A470J32Cardiff (North), Merthyr Tydfil A470Cardiff (West), Barry, Penarth A4232

Cardiff Airport

Cardiff West services

J33

Services

Cardiff (West), Barry, Penarth A4232

Cardiff Airport

Cardiff West services

Llantrisant, Rhondda A4119

Royal Glamorgan Hospital

J34Llantrisant, Rhondda A4119

Royal Glamorgan Hospital

Pen-coed A473J35Bridgend, Pen-coed A473Bridgend A4061

Maesteg A4063

Princess of Wales Hospital

Sarn Park services

J36

Services

Bridgend A4061

Maesteg A4063

Princess of Wales Hospital

Sarn Park services

Pyle, Porthcawl A4229J37Porthcawl, Pyle A4229Port Talbot A48J38Port Talbot A48No entrance (on-ramp only)J39No accessPort Talbot A4107J40Port Talbot A4107Port Talbot A48J41Briton Ferry A48Briton Ferry A48

Swansea (South) A483

J42Swansea (South) A483Neath, Merthyr Tydfil A465J43Neath, Merthyr Tydfil A465Swansea (East) A48J44Swansea (East) A48Pontardawe, Swansea (North) A4067J45Pontardawe, Swansea (North) A4067Llangyfelach B4489

Felindre

Morriston Hospital

J46Llangyfelach B4489

Felindre

Morriston Hospital

Swansea (West) A483

Gorseinon A48

Swansea services

J47

Services

Swansea (West) A483

Gorseinon A48

Swansea services

Pontarddulais, Llanelli A4138J48Pontarddulais, Llanelli A4138Start of motorwayJ49

Terminus

Services

Motorway terminates during a roundabout:

Carmarthen A48

Ammanford, Llandeilo A483

Pontarddulais A48

Pont Abraham services

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