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.
A3056 Crouchers Cross in Blackwater, the Isle of Wight both ways closed due to accident between Merstone Lane and A3020 Blackwater Hollow.
A3057 Romsey Road closed both ways closed due to emergency repairs and water main work between M271/Coldharbour Lane and Balmoral Way/Paulet Lacave Avenue.
M3 Northbound lane blocked on entry slip road from M27 Westbound, delays due to broken down vehicle at J14 M27.
There are reports of queueing traffic due to a serious accident, a motorbike involved on M$ London bound between J4B M25 and J4 A408 (Heathrow Spur/Uxbridge)
One lane closed due to broken down vehicle on M20 London bound between J9 A20 (Ashford/Faversham) and J8 A20 (Leeds Castle / Maidstone Services).
One lane closed due to grass fire on A3(M) Southbound between J2 B2149 (Horndean / Cowplain) and J3 B2150 (Waterlooville).
A323 Guildford Road both ways closed due to accident, two vehicles involved between Glaziers Lane / Hunts Hill Road and Bailes Lane.
Disruption on First Capital Connect between Brighton and St Pancras International due to person hit by a train at Burgess Hill. Tickets being accepted on Southern, Gatwick Express and London Underground services.
Disruption on First Great Western between Salisbury and Portsmouth Harbour, and between Salisbury and Brighton due to trespass incident at Southampton Central.
The Island Line service between Ryde Pier Head and Shanklin on the Isle of Wight has been suspended due to an electrical fire on board a train. Tickets are being accepted on Southern Vectis buses 2 and 3 services.