South Yorkshire's roads tackled by gritters as more snow expected
Sheffield's gritters will be working throughout the weekend to keep the city's roads safe, the council said.
The Met Office said a further 5-10cm (2-4in) of snow was expected to fall in parts of South Yorkshire on Saturday.
Wayne Southall, who is in charge of Sheffield's 21 gritters, said: "We've got the drivers doing double-shifts."
He said they were treating footpaths in the city centre as well as the roads. The council said it had also brought in an extra three snow ploughs.
South Yorkshire Police has urged drivers to ensure their vehicles are prepared for the wintry conditions.
Doncaster Council said its fleet of 14 gritters and snow ploughs would be "working around the clock", but said "it is important that drivers do not assume that routes will be free from ice".