Traffic Treforest

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Treforest
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Nearby: PontypriddPorthCaerphillyCardiffAberdareMerthyr Tydfil

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SEVERE

FULL SCREEN UPDATED: 13:53

Current traffic around Treforest

The following traffic incidents and congestion for Treforest have been reported by Highways England, Traffic Scotland, Traffic Wales or Transport for London (TfL) in the last two hours:

EASTBOUND

Description: M4Now clearEastboundJ33 (Cardiff) Capel Llanilltern, Start time: 28/04/2026 9:38 , Expected end time: 28/04/2026 9:43, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 9:38
Nearest town: 5.36 miles from Treforest. CLEARED @ 10:54

SOUTHBOUND

Description: A470Now clearSouthboundNantgarw to Coryton, Start time: 28/04/2026 9:38 , Expected end time: 28/04/2026 9:43, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 9:38
Nearest town: 4.01 miles from Treforest. CLEARED @ 10:54

NORTHBOUND

Description: A4232Now clearNorthboundA48 Interchange to M4 J33 Capel Llanilltern, Start time: 28/04/2026 9:29 , Expected end time: 28/04/2026 9:34, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 9:29
Nearest town: 6.73 miles from Treforest. CLEARED @ 10:42

A48 INTERCHANGE TO M4 J33 CAPEL LLANILLTERN

Description: A4232NorthboundA48 Interchange to M4 J33 Capel LlanillternCongestionDelay: s possible :, Start time: 28/04/2026 7:48 , Expected end time: 28/04/2026 10:48, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 7:48
Nearest town: 6.73 miles from Treforest. CLEARED @ 07:54

J38 MARGAM TO J41 PENTYLA/BAGLAN

Description: M4WestboundJ38 (Port Talbot) Margam to J41 (Port Talbot) Pentyla/BaglanRoadworksRoad closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 18.72 miles from Treforest. CLEARED @ 12:30

J39 GROES

Description: M4WestboundJ39 GroesEntry slip road closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 17.98 miles from Treforest. CLEARED @ 12:30

J40 TAIBACH

Description: M4WestboundJ40 (Port Talbot) TaibachEntry slip road closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 19 miles from Treforest. CLEARED @ 12:30

J40 TAIBACH TO J41 PENTYLA/BAGLAN

Description: M4EastboundJ40 (Port Talbot) Taibach to J41 (Port Talbot) Pentyla/BaglanResurfacing workRoad closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 19.41 miles from Treforest. CLEARED @ 12:30

J25A GROVE PARK TO J26 MALPAS

Description: M4Both directionsJ25A (Newport) Grove Park to J26 (Newport) MalpasRoadworksRoad closedDiversions in place29/04/26-01/05/26 2000-0600 :, Start time: 29/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:36
Nearest town: 14.36 miles from Treforest. CLEARED @ 12:18

J32 CORYTON

Description: M4EastboundJ32 (Cardiff) CorytonExit slip road closedDiversions in place27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 5.35 miles from Treforest. CLEARED @ 12:18

J33 CAPEL LLANILLTERN TO J32 CORYTON

Description: M4EastboundJ33 (Cardiff) Capel Llanilltern to J32 (Cardiff) CorytonResurfacing workRoad closedDiversions in place27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 5.07 miles from Treforest. CLEARED @ 12:18

J35 PENCOED

Description: M4WestboundJ35 (Pen-coed) PencoedExit slip road closedDiversions in place27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 8.86 miles from Treforest. CLEARED @ 12:18

BRYNMAWR

Description: A465WestboundBrynmawrExit slip road closedDiversions in place28/04/26-29/04/26 2000-0600 :, Start time: 28/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:25
Nearest town: 16.72 miles from Treforest. CLEARED @ 12:06

CORYTON

Description: A470NorthboundCorytonEntry slip road closedDiversions in place29/04/26-30/04/26 2000-0100 :, Start time: 29/04/2026 20:00 , End Date: 30/04/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:27
Nearest town: 5.26 miles from Treforest. CLEARED @ 12:06

TAFF'S WELL

Description: A470NorthboundTaffs WellRoadworksRoad closedDiversions in placeEntry slip road closed28/04/26-29/04/26 2000-0100 :, Start time: 28/04/2026 20:00 , End Date: 29/04/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 7:54
Nearest town: 4.38 miles from Treforest. CLEARED @ 12:06

M4 J33 CAPEL LLANILLTERN

Description: A4232EastboundM4 J33 Capel LlanillternRoadworksExit slip road closed27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 5.43 miles from Treforest. CLEARED @ 11:54

There are no current incidents in this location.

Roadworks

Traffic in Nearby Villages

Rhydyfelin (0.62mi)
Hawthorn (0.62mi)
Glyntaff (0.62mi)
Pentrebach (0.62mi)
Pontypridd (0.88mi)
Pen y rhiw (1.24mi)
Church Village (1.24mi)
Upper Church Village (1.24mi)
Taff (1.28mi)
Maesycoed (1.39mi)
Graig (1.39mi)
Upper Boat (1.39mi)
Trallwn (1.39mi)
Ton teg (1.39mi)
Hopkinstown (1.75mi)
Pont Sion Norton (1.86mi)
Senghenydd (2.24mi)
Tynant (2.24mi)
Cilfynydd (2.48mi)
Efail Isaf (2.48mi)
Abertridwr (2.56mi)
Glyncoch (2.56mi)
Llantwit Fardre (2.56mi)
Parc Mawr (2.63mi)

Treforest

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Elsewhere on the web:

National Highways England

Official source of traffic updates.

Transport for London (TFL)

Transport for London's (TfL) portal for transportation in London.

Traffic Wales

The Welsh government's traffic information service for Wales.

Traffic Scotland

Live traffic conditions and news for Scotland's road network.

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Description: M4 : Now clear : Eastbound : J33 (Cardiff) Capel Llanilltern, Start time: 28/04/2026 9:38 , Expected end time: 28/04/2026 9:43, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 9:38
Nearest town: 5.36 miles from Treforest.

51.51--3.31

Description: A470 : Now clear : Southbound : Nantgarw to Coryton, Start time: 28/04/2026 9:38 , Expected end time: 28/04/2026 9:43, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 9:38
Nearest town: 4.01 miles from Treforest.

51.54--3.26

Description: A4232 : Now clear : Northbound : A48 Interchange to M4 J33 Capel Llanilltern, Start time: 28/04/2026 9:29 , Expected end time: 28/04/2026 9:34, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 9:29
Nearest town: 6.73 miles from Treforest.

51.49--3.29

Description: A4232 : Northbound : A48 Interchange to M4 J33 Capel Llanilltern : Congestion : Delays possible :, Start time: 28/04/2026 7:48 , Expected end time: 28/04/2026 10:48, Severity: Moderate, Source: Welsh Government, Last updated: 28/04/2026 7:48
Nearest town: 6.73 miles from Treforest.

51.49--3.29

Description: M4 : Westbound : J38 (Port Talbot) Margam to J41 (Port Talbot) Pentyla/Baglan : Roadworks : Road closed : Diversions in place : 27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 18.72 miles from Treforest.

51.58--3.77

Description: M4 : Westbound : J39 Groes : Entry slip road closed : Diversions in place : 27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 17.98 miles from Treforest.

51.57--3.75

Description: M4 : Westbound : J40 (Port Talbot) Taibach : Entry slip road closed : Diversions in place : 27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 19 miles from Treforest.

51.59--3.77

Description: M4 : Eastbound : J40 (Port Talbot) Taibach to J41 (Port Talbot) Pentyla/Baglan : Resurfacing work : Road closed : Diversions in place : 27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 19.41 miles from Treforest.

51.6--3.78

Description: M4 : Both directions : J25A (Newport) Grove Park to J26 (Newport) Malpas : Roadworks : Road closed : Diversions in place : 29/04/26-01/05/26 2000-0600 :, Start time: 29/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:36
Nearest town: 14.36 miles from Treforest.

51.6--3

Description: M4 : Eastbound : J32 (Cardiff) Coryton : Exit slip road closed : Diversions in place : 27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 5.35 miles from Treforest.

51.53--3.25

Description: M4 : Eastbound : J33 (Cardiff) Capel Llanilltern to J32 (Cardiff) Coryton : Resurfacing work : Road closed : Diversions in place : 27/04/26-29/04/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 5.07 miles from Treforest.

51.52--3.28

Description: M4 : Westbound : J35 (Pen-coed) Pencoed : Exit slip road closed : Diversions in place : 27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 8.86 miles from Treforest.

51.51--3.5

Description: A465 : Westbound : Brynmawr : Exit slip road closed : Diversions in place : 28/04/26-29/04/26 2000-0600 :, Start time: 28/04/2026 20:00 , End Date: 29/04/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:25
Nearest town: 16.72 miles from Treforest.

51.8--3.17

Description: A470 : Northbound : Coryton : Entry slip road closed : Diversions in place : 29/04/26-30/04/26 2000-0100 :, Start time: 29/04/2026 20:00 , End Date: 30/04/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 24/04/2026 11:27
Nearest town: 5.26 miles from Treforest.

51.53--3.25

Description: A470 : Northbound : Taffs Well : Roadworks : Road closed : Diversions in place : Entry slip road closed : 28/04/26-29/04/26 2000-0100 :, Start time: 28/04/2026 20:00 , End Date: 29/04/2026 1:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 7:54
Nearest town: 4.38 miles from Treforest.

51.54--3.26

Description: A4232 : Eastbound : M4 J33 Capel Llanilltern : Roadworks : Exit slip road closed : 27/04/26-01/05/26 2000-0600 :, Start time: 27/04/2026 20:00 , End Date: 01/05/2026 6:00, Severity: Road closure, Source: Welsh Government, Last updated: 27/04/2026 20:00
Nearest town: 5.43 miles from Treforest.

51.51--3.31

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