Network Rail plan to extend the platform at Garelochhead, as well as: Bridge of Orchy, Tulloch and Roy Bridge stations, according to this article:
I found this diagram on Argyll & Bute's planning portal, Ref: 23/01873/LIB
Plans lodged to extend Garelochhead station platform to allow longer trains
Network Rail has lodged an application for listed building consent to extend the length of the platform at Garelochhead railway station.
www.helensburghadvertiser.co.uk
PLANS have been lodged to extend the Garelochhead railway station platform to allow longer trains to call.
Argyll and Bute Council planning officers are considering an application by Network Rail for listed building consent for the proposed work.
Similar plans are in the offing for the other West Highland line stations in the area - Helensburgh Upper, Arrochar and Tarbet and Ardlui - as well as Bridge of Orchy, Tulloch and Roy Bridge further north.
The move comes after ScotRail introduced additional 'Highland Explorer' carriages on some West Highland line services in 2021, adapted to provide additional space to carry bikes.
The platform extension plans would allow those modified carriages to be added to more services on the routes linking Glasgow with Oban, Fort William and Mallaig.
I found this diagram on Argyll & Bute's planning portal, Ref: 23/01873/LIB