There are slight delays on the A259 Upperton Road Westbound between the B2106 Devonshire Place (Memorial roundabout) and the A2040 The Avenue, the AA said. Average speed is reported to be ten mph.
There are also reports of an obstruction on the road on the A27 from Coldean Lane (Hollingbury / Ditchling junction) to the A23 London Road. Traffic is coping well and police are said to be on their way to the scene.
The A259 Worthing Road will be closed for pothole repairs overnight from 8pm to 4am on February 19 to 21 between Arundel Road and Horsham Road, West Sussex Highways said. Diversions will be in place.
No trains will run between London Victoria and East Croydon while Network Rail carry out works this weekend, Southern Rail said.