ScotRail has urged passengers who use Linlithgow railway station to check their journey before major engineering improvement works begin.
The closure of the Winchburgh tunnel, near Linlithgow, will affect services from Saturday, June 13, until Monday, July 27.
Engineers will be working 24 hours a day during this period to lower and re-lay two lines of track through the 330 metre tunnel and install equipment to carry the overhead power lines needed for electrification of the railway.
The work is part of the Scottish Government-funded £742 million Edinburgh to Glasgow Improvement Programme (EGIP) which will electrify the Edinburgh-Glasgow Queen Street line by 2016 – allowing the introduction of faster, greener and longer electric services on the route.
Customers who normally travel between Linlithgow and Edinburgh/Glasgow will have a temporary timetable.
Buses will replace and supplement trains where necessary and extra staff will be on hand at key stations to guide passengers to the next available travel option.
During the morning peak, an express bus to Edinburgh, Haymarket or Edinburgh Park is likely to be fastest option for Linlithgow customers.
ScotRail is advising commuters to set off earlier than normal, as most journeys will take longer, and to consider amending their travel times to use trains that are less busy.
Customers should plan ahead and visit www.scotrail.co.uk/winchburgh to help them make arrangements.