One lane is blocked because of a multi-vehicle accident on the M4 Eastbound between J42 (Earlswood Roundabout/Fabian Way) and J41 (Baglan/Pentyla).
There is queueing traffic after an earlier accident on M4 Eastbound between J28 (Tredegar Park) and J27 (Highcross).
There is congestion to J30 (Cardiff Gate) and on the A48 Eastern Avenue to A48(M) J29a St Mellons.
All lanes have been re-opened.
One lane is blocked and there's heavy traffic after an accident on the M4 Westbound at J47 (Penllergaer/Swansea West Services)
The Welsh Government introduced a Variable Speed Limit in 2011 to reduce congestion and improve safety and 'journey time reliability'.Read the full story ›
There is a 15-mile queue and there are long delays on the M4 Eastbound.
The hold-up follows an accident.
The queue extends from before J26 to J33 and travel time is around 90 minutes. The incident is also affecting the A48(M) outbound before the M4 at J29.
There is congestion on the A48 Western Avenue to A469 Whitchurch Road / A470 North Road (Gabalfa Interchange)
There is ten miles of queueing traffic along with long delays after an accident on the M4 Eastbound at St Julian's Hill between J25 (Caerleon) and J24(Coldra)
There is congestion to J30 A4232 (Cardiff Gate).
Travel time is around 90 minutes. The accident is also affecting the A48(M) outbound before the M4 at J29
One lane is closed and there is queueing traffic for 15-miles because of a broken down crane on the M4 Eastbound at St Julians Hill between J25 (Caerleon) and J24 (Coldra),
There is congestion to J30 (Cardiff Gate). Travel time is around 60 minutes.
The crane has now been removed but delays are expected to continue for sometime.
There are still queues on the M4 after a lorry hit the central reservation near Magor.
One lane is still closed after the accident Eastbound between J23A (Magor Services) and J23 (the M48).
There is congestion to J24 (Coldra).
There's heavy traffic and one lane is closed after an accident and emergency repairs on the M4 Eastbound between J23A (Magor Services) and J23 M48.
Drivers that flout the Variable Speed Limit restrictions in place along a busy stretch of the M4 around Newport will face tougher enforcement action.
The warning is being issued ahead of a new safety campaign being launched today which aims to ensure drivers are more aware of and adhere to the variable speed limits in place on the M4 between Junctions 24 (Coldra) and 28 (Tredegar Park) before enforcement action is stepped up.
The Welsh Government introduced a Variable Speed Limit along this stretch of road in 2011 to reduce congestion and improve safety and journey time reliability.
Since its launch the scheme has helped to improve traffic flow and reduce the number of collisions along this stretch, with the majority of drivers adhering to the limits in place.
However, a minority of drivers continue to flout the displayed limits and act as if the restrictions do not apply to them so it is these motorists we are primarily targeting with this awareness campaign and subsequent enforcement action.