“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