A snow storm during rush hour caused chaos on the A27 between Lewes and Brighton last night (Tuesday January 22).
Drivers and bus passengers were stuck on the road for up to four hours as snow and ice made the roads treacherous.
Hills in the area, including Ditchling Beacon, became impassable due to the snow.
Several roads this morning were still littered with cars that had been abandoned the previous evening.
Brighton and Hove Police said cars left in Falmer Road yesterday had been moved to the Amex Stadium and drivers should collect them from there.
East Sussex County Council roads team were urging drivers to take care on the A27 this morning, as there were still lots of abandoned cars after traffic on the major route ground to a halt.
Sussex Police said the A27 was fully open by 7am this morning.
Sussex Express deputy content editor Nikki Jeffery was stuck in the jam on the A27 and said people had parked on laybys and verges.
She added it took an hour and a half to get to Ashcombe roundabout from Lewes and after about three and half hours she reached Falmer.