Rail services have been severely disrupted by snow and ice ScotRail has said it hopes to restore some trains to the north of Scotland on Saturday after snow virtually wiped out services above the central belt.
The rail operator began to run replacement bus services on Friday evening.
It hopes to run both train and bus services from Edinburgh and Glasgow to Inverness and Aberdeen and between Inverness and Aberdeen on Saturday.
Meanwhile, drivers are being urged to take care if they need to travel.
There has been a warning of widespread icy conditions and wintry showers, with overnight temperatures dipping to -12C in rural areas and down to about -3C in cities and towns.
Trains between Edinburgh Waverley and Glasgow Queen Street will continue to operate on a half-hourly service.
The West Highland Line is set to run, along with limited services between Inverness and Glasgow, from Inverness to Aberdeen and from Edinburgh to Inverness.
Regular bus replacement services are hoped to run between the four cities.
Buses will also shuttle between Dunblane, Stirling and Falkirk High.
Snow centres were hoping for a good weekend across Scotland, if the roads around them remain clear.
On Friday evening several high level routes in the Highlands and north east were still blocked by snow.
Many roads in the Grampian area were also affected by lying, drifting and compacted snow.
An accident which had closed the M90 exit slip-road to Rosyth and Inverkeithing at junction 1 has now been cleared.
Central Scotland Police said many roads across the Forth Valley were affected by black ice and they urged drivers not to travel unless necessary.
Black ice was also reported on routes in the Borders and Dumfries and Galloway.
The A68 was closed between Jedburgh and Elishaw because of ice and snow.
In the east, walkers and skiers in the Pentland Hills and on Arthur’s Seat in Edinburgh were warned of the risk of avalanches.
Sporting fixtures have also been hit by the bad weather, with all six of the weekend’s Clydesdale Bank Premier League games postponed.
BBC One Scotland will be showing a special programme on Frozen Scotland at 1800 GMT on Sunday.
Jackie Bird will look back at the week the country ground to a halt and ask how people will cope for the rest of the winter.
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