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.
An accident on the M4 westbound in Wiltshire has led to the closure of two lanes between junction 16 A3102/B4005 (Swindon West) and junction 17 A350/A429/B4122 (Chippenham). Traffic is queueing.
Motorists are advised to avoid using the A2 through Sittingbourne following a serious collision in Canterbury Way.
Kent Police were called to the scene at 3.33pm to reports of a road traffic collision. Two teenagers have been taken to hospital with reported serious injuries.
The road is now closed from the junction with Murston Road. Motorists looking to get to Faversham are advised to use the M2.
Delays of up to 45 minutes on South West Trains between Weymouth and Bournemouth due to a trespass incident between Dorchester South and Moreton (Dorset).
A2 Canterbury Road in both directions closed, queueing traffic due to accident at Rectory Road / Murston Road, congestion on A2 Westbound to School Lane. Near the Old Prince of Wales Pub.
M25 clockwise blocked, stationary traffic due to accident, a car and a lorry involved between Clacket Lane Services and J6 A22 / B2235 (Godstone).
Queueing traffic and road blocked due to multi-vehicle accident on A299 Thanet Way coastbound before A291 Canterbury Road (Herne Bay junction). Speed sensors indicate delays in the area.
One lane blocked and queueing traffic due to broken down car on M25 clockwise between J5 M26 / A21 (Sevenoaks) and Clacket Lane Services. In the roadworks area. Lane one of three blocked, with all traffic using lanes two and three.
Three lanes closed and very slow traffic due to multi-vehicle accident on M25 clockwise between J8 A217 (Reigate) and J9 A243 / A245 / B2430 (Leatherhead).
Travel time is around 60 minutes. Lanes one, two and three two are closed, with all traffic passing in lane four, with queues back through J8.
A2102 Norman Road closed both ways, slow traffic due to unsafe building between Norman Road and Cross Street / King's Road.
The M25 in Kent is closed clockwise between junction 3 M30/A20 (Swanley Interchange) and junction 4 A21/A224 (Orpington) due to an accident involving a lorry. Traffic is queueing. The anticlockwise carriageway was closed but has since reopened.
A diversion is in place via the M20, A20 and M26 to rejoin the carriageway at junction 5.