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.
Two lanes are closed and traffic is slow moving on the M27 eastbound in Hampshire between junction 8 for the A3024 (Bursledon/Hamble) and junction 9 for the A27 (Segensworth/Fareham). There's congestion to junction 4 for the M3.
08:17 London Charing Cross to Tonbridge due 09:00 has been further delayed at Hither Green and is now 21 minutes late due to a landslip.
We are experiencing delays up to 25 minutes to our Caversham services. Very sorry for any inconvenience
We are slowly getting services back to normal due to the marathon over running by an hour. Very sorry for any inconvenience.
Jet Black buses experiencing delays due to race fixture at Newbury Racecourse. Sorry for any inconvenience.
Loddon Bridge Park & Ride is closed due to flood alert. Sorry for any inconvenience.
Two people believed to be pensioners have died in a single car collision on the A34 southbound in Hampshire.
Police were called just after six thirty this evening. It happened at Three Maids Hill near Upper Bullington.
There are massive queues and major jams as traffic is diverted off the A34 at Sutton Scotney and directed through Winchester. Motorists are being told to expect long delays. The A34 is expected to be closed for much of the night.
A serious accident involving more than one vehicle has happened on the A34, just off the worthy down roundabout towards the Winnall interchange in Hampshire. There are massive queues as traffic is diverted off the A34 at Sutton Scotney and directed through the city of Winchester.
There are major traffic jams and motorists are being told to expect long delays. The A34 is expected to be closed for much of the night.
Hampshire Police say they received multiple calls about the accident from about 6.38pm this evening. It is not yet clear how many vehicles were involved.
The A34 southbound is closed at Upper Bullington in Hampshire, with queueing traffic due to a serious accident between the A303 (Bullington Cross) and A272. On approach to the Winnall roundabout. Access is still available from the A303 to Sutton Scotney services, but no further.
The road is expected to remain closed well into the evening.
There are delays of up to 30 minutes on Southern Trains between Bognor Regis and Horsham, between Bognor Regis and Littlehampton and between Littlehampton and Worthing. It's due to signalling problems at Bognor Regis and Littlehampton.
Southern doesn't currently have an estimate for when normal services will resume.