On Mondays to Saturdays there is a half-hourly service eastbound to Glasgow Central and westbound hourly to both Gourock and Wemyss Bay. Most journeys to Wemyss Bay require a change at Port Glasgow. On Sundays, there is an hourly service in each direction (westbound to Gourock).
Jowett, Alan (March 1989). Jowett's Railway Atlas of Great Britain and Ireland: From Pre-Grouping to the Present Day (1st ed.). Sparkford: Patrick Stephens Ltd. ISBN978-1-85260-086-0. OCLC22311137.