[3] An approximately hourly service for Broughty Ferry and Monifieth was restored with the December 2018 timetable change.

[4] On 28 December 1906, a severe blizzard caused 22 deaths and 24 injuries after two trains collided with each other between Carnoustie and Arbroath.

The Stonehaven derailment occurred on 12 August 2020 which killed three people and required the line to remain closed between Stonehaven and Laurencekirk until 3 November.

This section was closed again after a bridge parapet collapsed on 15 January 2021.

[6][needs update] In the Scottish Government's National Transport Strategy, published in February 2020, it was stated that the line would be electrified with overhead lines by 2035.