Council told to grit more roads in Northamptonshire
Northamptonshire County Council said it has received a high number of calls for its gritter lorries to treat more roads and paths.
Its fleet was out from 1900 GMT on Wednesday as overnight temperatures were predicted to drop to -4C (25F).
"Unfortunately, due to the limited resources available, it is not possible to grit all roads and footways," the council said.
It added that it treats more than 40% of the county's roads.
This exceeds the coverage by many other highway authorities in England, it said.
"Once the main routes are clear then specific requests will be considered and prioritised accordingly," the council said.
"During this time the public are being asked to be patient and to try to plan their journey to roads on the gritted network, which are more likely to have received treatment."
Snow showers are expected to become more frequent on Thursday, especially in central and northern parts of the county.
East Midlands Trains, which operates some services in Northamptonshire, advised passengers to check for travel information.
It has altered some of its timetables on Thursday due to the severe weather.
There are currently no school closures for Thursday in Northamptonshire.