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    Home » Morning rush hour delays hit M4 and A470 across South Wales
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    Morning rush hour delays hit M4 and A470 across South Wales

    Rhys GregoryBy Rhys GregoryJanuary 13, 2026Updated:January 13, 2026No Comments
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    Credit: Traffic Wales
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    Traffic across parts of South Wales is moving slowly this morning, with drivers being warned to allow extra time for their journeys due to congestion and poor conditions.

    Traffic Wales has reported difficult driving conditions on the M4 between junction 49 at Pont Abraham and junction 41 at Pentyla and Baglan. Wet weather is affecting the network, with motorists reminded that stopping distances in rain can be up to four times longer than normal. Drivers are being advised to reduce speed and leave plenty of space between vehicles.

    Credit: Traffic Wales

    Congestion has also been reported on the A4232 between Culverhouse Cross and the M4 at Capel Llanilltern, affecting traffic in both directions. Delays are building in the area, particularly during the morning rush.

    On the M4 eastbound, drivers are experiencing delays between junction 28 at Tredegar Park and junction 23A at Magor. Motorists travelling towards the Severn Crossing are being urged to plan ahead and allow additional time.

    Further delays are affecting the A470 southbound from Nantgarw to junction 32 at Coryton, adding pressure to key commuter routes into Cardiff.

    Credit: Traffic Wales

    More disruption is affecting the M4 westbound between Lon Las and junction 45 at Ynysforgan, where lane two is currently blocked following a collision.

    Traffic is building in the area as a result, with delays increasing during the morning. Drivers travelling westbound are being advised to allow extra time for their journeys and to approach the area with caution.

    Road users are being encouraged to check traffic updates before travelling and to take extra care on the roads while conditions remain wet.

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    Rhys Gregory
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