Some motorists trapped overnight were caught in treacherous conditions on the M23 in Sussex and on the A23 in Kent
Here are the details of some of the roadworks planned in the South for the coming week.
Ryanair should have compensated passengers whose flights were cancelled because of volcanic ash in 2010, the EU's top court has found.
One lane blocked and slow traffic due to accident on M2 coastbound before J6 A251 (Faversham).
A350 both ways closed, delays due to accident between The Street and Shaftesbury
There were severe delays on the A27 westbound at Shoreham-by-Sea this morning, after a lorry collided with an unattended trailer parked in a lay-by just west of Southwick Tunnel.
It happened at 6.55am and led to one of the westbound lanes being closed while emergency services dealt with the incident.
The lorry driver is understood to have suffered minor injuries. Traffic queues built up back to the junction with Devil's Dyke Road. Police advise that both westbound lanes of the A27 will be closed for a short time at midnight tonight to permit recovery of the damaged vehicles.
Disruption on Southeastern between Paddock Wood and Ashford International due to obstruction on the line.
One lane closed and queueing traffic due to debris on road and jackknifed lorry on A27 Shoreham By-Pass Westbound near Southwick Tunnel, congestion to A23 London Road (Patcham).
One lane blocked due to accident, four vehicles involved on M27 Eastbound between J11 A27 (Fareham / Gosport) and J12 M275 (Portsmouth).
A30 Long Cross both ways closed due to accident, two vehicles involved between A350 Grosvenor Road / B3081 Bleke Street / Longmead and Lox Lane.
One lane closed due to accident on M40 Northbound between J10 A43 (Brackley / Cherwell Valley Services) and J11 A361 / A422 (Banbury).
M25 anticlockwise lane closed on exit slip road at J1A A282 / A206 Crossways Boulevard / B3228 (Swanscombe)
A3 Northbound closed, delays due to accident, two vehicles involved at Hindhead Tunnel.The accident happened at around 09:30 just north of the tunnel, but police confirm the tunnel will be closed to enable traffic management.