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Latest live M4 traffic news


The M4 is the main road running between London and South Wales, passing Slough, Reading, Swindon, Bristol, Newport, Cardiff and Swansea along the way. Like the rest of the UK road network, the M4 has areas where tailback is most likely – mainly where it joins M25 on the west side of London and also where it meets M5 near Bristol. Naturally, accidents, road work and other traffic problems cause delays, so you should take care of your journey before starting the engine.

There used to be a road toll over the M4 Severn bridge connecting England and Wales, but after 52 years, the toll was abolished on 17 December 2018.

In general, the M4 tends to be relatively clear for the most part, but the 189-mile route can experience additional congestion during peak hours and summer holidays. If you plan to use any portion of the M4 motorway, this page will be a handy aid to travel warnings, live updates and trouble maps for both westbound and outbound lanes. Winter.

Tweets

Scroll down to find live tweets about the latest traffic conditions on the M4.

Live highway camera M4

If there is a traffic disruption on the M4, you can update any delays with a live traffic camera for east and West M4.

M4 . weather report

Details of the latest weather warnings in the M5 area from the Met Office…

Met Office Southwest Weather Report

History of M4

The Department for Transport first proposed a new road from London to South Wales in the 1930s. Plans for the M4 as one of the first major post-war arterials were made in 1956 and began Construction began in 1961. The Chiswick Overpass, a short section of elevated two-way street built to reduce the impact of traffic between central London and the west, opened in 1959 and later became part of the new M4 route. The section from J18 to the west side of Newport opened in 1966, including the Severn Bridge, now part of the M48.

The English section of the highway was completed in December 1971 when the 50-mile stretch between Maidenhead and Swindon was put into public use. The Welsh section was completed in 1993, when the Briton Ferry bridge opened to traffic. The second Severn intersection opened in 1996, and motorways on either side of the river brought the M4 over the new overpass when construction was finally completed.

Traffic M5: live news updates

M4 . intersection points

All M4 crossings on southbound and northbound routes are detailed below…

Exit to the east (B street) Junction West Exit (Horse Road)
The road continues like A4 arrive Central London J1 Start of the highway
Northern Roundabout A406

Male circle A205

Chiswick A315

J2 Staines, Hounslow, Brentford A4
Heston Service Service Heston Service
Heathrow (Terminal 4, 5 & Goods), Hayes, harrow, Hounslow A312 J3 Heathrow (Terminal 4, 5 & Cargo), Hayes, Harrow, Hounslow A312
Heathrow (Terminals 1, 2 & 3) (A4)

Uxbridge A408

J4a Heathrow (Terminal first2 & 3) (A4)

Uxbridge A408

Heathrow (Terminal 4, 5 & Goods), Gatwick Airport , Watford (M3), (M23), (M40), (M1) M25 J4b Heathrow (Terminal 4, 5 & Cargo), Gatwick, Watford (M3), (M23), (M40), (M1), M25
Colnbrook, Langley, Slough (East) A4

Eton, Datchet B470

J5 Colnbrook, Langley, Slough (East) A4, Datchet B470
Slough (Central) A355

Windsor A322

J6 Slough (Central) A355

Windsor A322

Slough (West) A4 J7 Slough (West) A4
High Wycombe, Henley A404 (M)

Maidenhead A308 (M)

J8 / 9 High Wycombe, Henley A404 (M)

Maidenhead A308 (M)

Read (East), Wokingham, Bracknell A329 (M) J10 Read (East), Wokingham, Bracknell A329 (M)
Basingstoke, Read (Central & Southern) A33 J11 Basingstoke, Read (Central & Southern) A33
Reading service Service Reading service
Read (West), Theale A4 J12 Read (West), Theale A4
Newbury, Oxford A34

Chieveley Service (Moto)

J13

Service

Newbury, Oxford A34

Chieveley Service (Moto)

Hungerford, Wanted A338 J14 Hungerford, Wanted A338
Membury’s Service Service Membury’s Service
Swindon (East) A419

Marlborough A346

Oxford (A420)

J15 Swindon A419, Marlborough A346
Swindon (West), Royal Wootton Bassett, Wroughton, RAF Lyneham, Calne A3102 J16 Swindon (West), Royal Wootton Bassett, Wroughton, RAF Lyneham, Calne A3102
Chippenham A350

Cirencester A429

J17 Chippenham A350

Cirencester A429

Service Leigh Delamere Service Service Leigh Delamere
Bathtub, Stroud A46 J18 Bathtub, Stroud A46
Bristol M32 J19 Bristol M32
Southwest, Bristol (West), Midland, Gloucester M5 J20

Almondsbury Crossing

SOUTH WEST, Bristol (West) M5 (S)

MIDLANDS, Gloucester M5 (N)

Inaccessible J21 Chepstow M48
Avonmouth M49 J22 Avonmouth M49
Entry to the UK Second Severn Crossing Entry to Wales
There is no toll station Toll bridge Toll plaza
Chepstow M48 J23 Inaccessible
Magor, Caldicot A4810

Magor Service

J23A

Service

Magor, Caldicot A4810

Magor Service

Downtown A48

Newport (East) B4237

Monmouth A449

Midland (M50)

J24 Downtown A48

Newport (East) B4237

Monmouth A449

Inaccessible J25 Caerleon B4596
Inaccessible J25A Newport, Cwmbran A4042
Brynglas . Tunnels Tunnel Brynglas . Tunnels
Newport, Cwmbran, Caerleon A4051 J26 Newport A4051
High cross B4591 J27 High cross B4591
Newport A48

Risca, Brynmawr A467

J28 Newport A48

Risca, Brynmawr A467

Inaccessible J29 Cardiff (East and South) A48 (M)
Cardiff (East) A4232

Cardiff Gate Service

J30

Service

Cardiff (East) A4232

Cardiff Gate Service

Merthyr Tydfil, Cardiff A470 J32 Cardiff (North), Merthyr Tydfil A470
Cardiff (West), Barry, Penarth A4232

Cardiff Airport

Services of Cardiff West

J33

Service

Cardiff (West), Barry, Penarth A4232

Cardiff Airport

Services of Cardiff West

Llantrisant, Rhonda A4119

Royal Glamorgan Hospital

J34 Llantrisant, Rhonda A4119

Royal Glamorgan Hospital

Pen-coed A473 J35 Bridgend, Pen-coed A473
Bridgend A4061

Maesteg A4063

Princess of Wales Hospital

Services of Sarn . Park

J36

Service

Bridgend A4061

Maesteg A4063

Princess of Wales Hospital

Services of Sarn . Park

Pyle, Porthcawl A4229 J37 Porthcawl, Pyle A4229
Port Talbot A48 J38 Port Talbot A48
No access (on ramp only) J39 Inaccessible
Port Talbot A4107 J40 Port Talbot A4107
Port Talbot A48 J41 Briton Ferry A48
Briton Ferry A48

Swansea (South) A483

J42 Swansea (South) A483
Neath, Merthyr Tydfil A465 J43 Neath, Merthyr Tydfil A465
Swansea (East) A48 J44 Swansea (East) A48
Pontardawew, Swansea (North) A4067 J45 Pontardawew, Swansea (North) A4067
Llangyfelach B4489

Felindre

Morriston Hospital

J46 Llangyfelach B4489

Felindre

Morriston Hospital

Swansea (West) A483

Gorseinon A48

Swansea Service

J47

Service

Swansea (West) A483

Gorseinon A48

Swansea Service

Pontarddulais, Llanelli A4138 J48 Pontarddulais, Llanelli A4138
Start of the highway J49

Last station

Service

The highway ends at a roundabout:

Carmarthen A48

Ammanford, Llandeilo A483

Pontarddulais A48

Pont Abraham service



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