Highway bosses are cutting back on the number of roads being gritted in Leeds as salt supplies in the city reach "critical" levels.
The council said it was only gritting A-roads and emergency service routes to hospitals, fire and police stations.
It said it gritted 800 miles (1,280km) of roads during the winter so far but was reducing that to 300 miles (480km).
Salt stocks have diminished because of heavy snowfall and rationed deliveries, the council said.
A spokesman said the decision was taken after "the worst winter for 30 years".
He said the harsh weather meant "salt stocks are now at a critical level in the city".
The spokesman added: "The government has taken over the allocation of salt deliveries and Leeds, like every local authority, is now receiving a rationed supply rather than the volumes it has ordered."
Council leader Andrew Carter said: "I would urge all motorists to drive with even more care and attention than usual, regardless of the road they are on.
"We will continue doing out best to keep the city moving. We will grit more and more roads as and when we are able to."