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.
All lanes are now open and traffic is easing after an accident causing queues on the M4 in both directions between J44 A48 / A4230 / B4291 (Llansamlet) and J45 A4067 / B4603 (Ynysforgan).
One lane is blocked on the A483 Wrexham Bypass Northbound and there's queueing traffic after an accident near J5 A541 Mold Road / Summerhill Road (Gwersyllt).
One of the main routes into Morriston Hospital is closed.
Pant Lasau road will be shut in both directions between the A48 Clasemont Road junction and Heol Maes Eglwys, because of a burst water main.
South Wales Police say it will remain closed for several hours whilst repairs are carried out.
Strong winds on the A55 Britannia Bridge between J8A A5 Ffordd Caergybi / Holyhead Road (Llanfair P.G.) and J9 A487 (Treborth) mean there's a 30 mph speed limit.
Two lanes are closed and there's queueing traffic for five miles because of an overturned lorry on the M4 Westbound between J37 A4229 (Pyle / Porthcawl) and J38 A48 (Margam). There's congestion to J36 A4061 / A4063 (Bridgend / Sarn Service Area).
One lane is closed and there's queueing traffic and long delays because of emergency repairs on the M4 Eastbound between J25 A4042 / B4596 (Caerleon) and J24 A48 / A449 (Coldra). There's congestion to J29 A48(M). Travel time is around 45 minutes.
One lane is closed and there's very slow traffic because of a collapsed manhole on the M4 Eastbound between J25 A4042 / B4596 (Caerleon) and J24 A48 / A449 (Coldra).
There's stop-start traffic after an accident on the M4 Brynglas Tunnel Eastbound between J26 A4051 (Malpas Road) and J25A A4042 / B4596 (Newport/Grove Park Roundabout). There's congestion to J29 A48(M). All lanes have been re-opened.
#serviceUpdate Cardiff Bus are now accepting train tickets for journeys to Cardiff from Coryton, Penarth and Barry by any reasonable route.
There's disruption on Arriva Trains Wales between Cardiff Central and Merthyr Tydfil, between Cardiff Central and Aberdare and between Cardiff Central and Ebbw Vale Parkway because of over-running engineering work between Cardiff Central and Rhoose Cardiff International Airport.