Rail passengers are being urged to check before they travel as new timetables come into effect today.
ScotRail have launched a new timetable due to ongoing rail improvements.
The upgrades are intended to improve the network across the central belt and in the north of Scotland.
ScotRail are advising passengers that journey times may be longer during the upgrade process with queuing systems in place at key stations to cope with customer demand.
A dedicated web page has been created by ScotRail outlining the changes, allowing customers to check if their route is affected.
For more infornation or to check your journey, please visit ScotRail.