Motorists faced extensive delays this morning following a fatal collision. It comes amid calls for changes how the Severn Crossing is run.
Figures show three-quarters of school journeys in the Cardiff area are less than two miles – and almost three in 10 are under a mile.
A £25 million investment has been announced to improve the Conwy Tunnel's resilience and safety measures.
Two lanes are blocked and there's very slow traffic after three accidents on the M4 Westbound between J41 A48 / B4286 (Baglan/Pentyla) and J42 A48 (Earlswood Roundabout/Fabian Way).There's congestion to J37 A4229 (Pyle).
There's queueing traffic and one lane is blocked after an accident, now on the hard shoulder, on the A4232 Southbound between Culverhouse Cross and the Leckwith Interchange.
Fog causing disruption to flights this morning. Please check with your airline for info http://t.co/lEHZWmPdYy
All lanes are now open and traffic is easing after an earlier lorry fire on the M4 Eastbound between J24 A48 / A449 (Coldra) and J23A B4245 (Magor Services).
There's queueing traffic after an accident which is now on the hard shoulder on the M4 Westbound between J32 A470 / A4054 (Coryton Interchange) and J33 A4232 (Cardiff West And Services). All lanes have been re-opened.
There's stop-start traffic for six miles after an accident, now on the hard shoulder on the M4 Westbound between J26 A4051 (Malpas Road) and J27 B4591 (Highcross). There's congestion on the M4 to J24 A48 / A449 (Coldra). All lanes have been re-opened.
The A4216 Sketty Lane is closed after an accident between B4436 Derwen Fawr Road and A4067 Mumbles Road.
One lane is blocked after an accident on the A4232 inbound at the A48 Cowbridge Road West / A4050 Port Road (Culver House Cross).
Passengers flying to and from Cardiff Airport experienced some delays and disruption today, after a technical glitch at the UK's main air traffic control room. Cardiff was one of the airports affected by the problems earlier this morning. Alexandra Lodge reports.