The new 'Edinburgh Gateway' railway station will be ready by December, Network Rail has said.
Located by the Gogar Roundabout on the A8, the £41 million station will be linked to the adjacent Gyle Centre and will also provide an easier means for passengers travelling from the north of Scotland to reach Edinburgh Airport.
The station will be equipped with a tram link directly to the airport, with the system also being connected to the city centre.
Preparatory engineering work at the site has been taking place for 12 months and it remains on schedule to be finished this year.
Network Rail managing director for Scotland Phil Verster said: "Despite the challenging weather, the project team at Edinburgh Gateway has maintained its focus on keeping this work on programme."
He added that is has the "potential to become a true gateway to Scotland's capital" that will give visitors a positive impression of the rail network in Scotland.
The project is part of a wider electrification of lines in the central belt.
