One lane is blocked and there's queueing traffic because of a broken down vehicle on the M4 Eastbound at J34 A4119
Residents and local businesses are due to attend a public meeting later to discuss continuing concerns over the trial closure of Junction 41, Port Talbot.
The meeting comes as the trial closure period draws to an end, but a decision as to whether it will re-open is yet to be made.
The westbound slip road has now been closed during peak times since August of last year in an effort to ease traffic problems.
Local businesses say they've seen a drop in trade, with the town centre regularly descending into traffic chaos.
The meeting will be held from 6pm at the Princess Royal Theatre.
There's stop-start traffic and one lane is blocked after an accident on the M4 Westbound near J41 (Baglan/Pentyla). There's congestion to J38 (Margam).
The accident on the M4 Westbound between J41 (Baglan/Pentyla) and J42 (Earlswood Roundabout/Fabian Way) has been cleared. There's residual congestion.
One lane is closed and there's very slow traffic after an earlier accident and emergency repairs on the M4 Second Severn Crossing Eastbound between J23 M48 and J22 M49.
Conservative AMs will force a vote in the Senedd today on whether there should be a review of the Welsh Government's plan to build a new motorway south of Newport to relieve pressure on the existing M4.
The £1 billion project is highly controversial, both because of its cost and because of the environmental impact on the Gwent Levels wetlands. Some business groups prefer the idea of upgrading the existing Southern Distributor Road to a motorway, arguing that it would be a cheaper and quicker solution.
That's angered residents who live near the distributor road who fear the noise and pollution that might be caused by a motorway. Now the Conservatives' transport spokesman, Byron Davies, says he's not convinced that a full motorway is required and that more modest improvements might be enough to relieve pressure on the M4.
That's roughly in line with what the Liberal Democrats have been arguing, while Plaid Cymru oppose spending such a major part of the transport budget on just one road scheme.
There's also been opposition from some Labour AMs, including two former ministers. So it would appear that most Assembly Members at least have doubts about the project. The Welsh Government has already conceded that construction work won't get the go-ahead before the 2016 Assembly election.
There are strong winds on the M4 Briton Ferry Bridge in both directions between J42 (Earlswood Roundabout/Fabian Way) and J41 (Baglan/Pentyla). There's a 40mph speed limit.
One lane is closed and there's very slow traffic after a five vehicle accident on the M4 Westbound between J39 (Margam) and J40 (Port Talbot / Taibach).
There's congestion to congestion to J37 (Pyle / Porthcawl).
Strong winds on the M4 Briton Ferry Bridge between J41 (Baglan/Pentyla) and J42 (Earlswood Roundabout/Fabian Way) mean there's a 40 mph speed limit.
One lane is blocked and there's queueing traffic after an accident on the M4 Eastbound at J41 Baglan/Pentyla. There's congestion six miles long to J44 Llansamlet.