Due to engineering work there is no train service from Glasgow Queen Street High Level or Low Level to Edinburgh from 29 Jan to 1 Feb. Limited rail replacement buses are in place, connecting to trams.
Journey times will be extended by at least 40 minutes.
(That means the trams to Edinburgh Airport will be much busier than normal).
See this web page for full details-https://www.scotrail.co.uk/plan-your-journey/engineering-works/safety-critical-engineering-works-29-january-until-1-february
Trains will run from Glasgow Central to Edinburgh on both routes (via Shotts and via Carstairs), but will be busy, or use Citylink buses route #900.
Trains from Edinburgh to Inverness will be diverted via Fife