ScotRail has been instructed by the Scottish Government to submit a plan for how it will address falling performance levels.
The multi-million-pound upgrade of Aberdeen and Inverness rail stations is to begin soon.
Poor communication among maintenance workers led to an Inverness train travelling at 53mph crashing into a piece of rail left on a track - creating a “potentially catastrophic outcome”, investigators have found.
Nearly a fifth of all train journeys on the Far North Line between Inverness and Caithness in 2017 did not offer a food and drink service to passengers because of staffing problems.
Cramped Inverness rail services connecting with Edinburgh, Glasgow, Elgin and Aberdeen are to increase in capacity by 45% this year – providing much-needed extra space for frustrated passengers.
The ScotRail Alliance is reminding customers to plan their journeys in advance, ahead of the latest phase of the Aberdeen to Inverness Improvement Project.
Nearly a fifth of all train journeys on the Far North line last year did not offer a trolley service to passengers because of staffing problems.
Aberdeen Railway Station marked its 150th anniversary at the weekend – by naming a high-speed train after it.
Disabled passenger calls for reservation rules change after nightmare train journey spoils rare day out
A disabled woman left in excruciating pain after "rude" train passengers took her seat has called for stricter rules on reservations.
A major upgrade of Inverness railway station is on track for completion next year.
A train smashed into a tree at 70mph yesterday, leaving passengers stranded for more than two hours.
The Inverness to Aberdeen service suffered some delays today - after a train hit a cow the night before.