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 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.
The M3 Southbound is partially blocked due to an accident at J13 A335 (Chandlers Ford) in Hampshire.
There is disruption on Eurostar at St Pancras International, at Ebbsfleet International and at Ashford International due to person hit by a train in France. Trains are not currently able to use the High-Speed lines in the Lille area, causing delays of up to 60 minutes.
One lane is closed due to barrier repairs on the M4 London bound after J10 A329(M) Wokingham / Bracknell in Berkshire. Lane three closed, with all traffic passing in lanes one and two.
Replacement bus service running on South West Trains between Alton and Farnham due to electrical supply problems.