Network Rail Scotland work on WHL platform extensions began January 2024

“Helensburgh Upper, Ardlui, Roy Bridge, Garelochhead, Arrochar and Tarbet, Crianlarich, Bridge of Orchy and Tulloch stations will all benefit from the £1.7m investment on the route.

Funded by the Scottish Government, the project began at Arrochar & Tarbet with plans to deliver the improvements at all of the stations by the end of summer.”

This will enable Highland Explorer coaches to be attached to six-coach trains and thereby increase capacity.

More details here