Speed restrictions have been put in place on the West Highland rail line due to a forecast of severe weather.
Some services travelling from Glasgow Queen Street to Fort William, Mallaig and Oban are also expected to be cancelled on Thursday, with heavy rain and winds set to hit Scotland.
The Met Office has published yellow rain warnings covering much of Scotland on Thursday, with strong winds expected along the east coast and snow in some areas.
Speed restrictions will be put in place on several lines across the country until 9am on Friday.
The restrictions are expected to be put in force on the following routes:
- Aberdeen-Inverness
- Dundee-Aberdeen
- Perth-Inverness
- Carlisle-Glasgow Central, via Dumfries
- Glasgow Central-Stranraer
- West Highland Line (Helensburgh Upper-Fort William)
Network Rail has explained that heavy rain can cause landslips or wash the supporting stone (ballast) away from beneath the rails, while high winds also increase the risk of trees falling onto the track.
Slowing trains down during bad weather allows more time to stop if the weather causes trees or landslips to block tracks.
A revised timetable will be in place across these areas of Scotland’s Railway due to the extended journey times that the speed restrictions will bring.
Network Rail Scotland route director, Liam Sumpter said: “The safety of passengers and colleagues is our priority during severe weather and as a precaution, we will be slowing trains down in the affected areas.
“Our weather specialists will be monitoring conditions throughout the day and we will have additional teams out on the network ready to deal with any issues caused by the weather.”
Passengers should check their journey before travelling at National Rail Enquiries or with Scotrail.