There will be no direct trains this weekend between Glasgow and London due to essential works being carried out.
This will not only impact Glasgow but the rest of Scotland, and is expected to affect thousands of people across the country. This is due to Network rail carrying out works across the west coast mainline and east coast mainline this weekend on Saturday and Sunday.
Watchdog Transport Focus told the PA news agency "this situation should not happen".
Journeys between London and Glasgow alongside the rest of the country will be significantly slower.
READ MORE: High winds to hit Glasgow as yellow weather warning issued with gust of up to 75mph
Itineraries have suggested by National Rail Enquiries that passengers travelling from London to Glasgow could involve up to four changes including a bus journey.
The 12:15 leaving London St Pancras on Saturday is expected to take just over seven hours, arriving at Glasgow Central station at 19:36 which is more than two hours longer than the normal service.
Transport Focus chief executive Anthony Smith said: "Passengers will be disappointed to see both East and West Coast lines closed due to engineering works this coming weekend.
"This situation should not happen.
"One line should be kept open so that passengers from Scotland and the north of England have access to a direct train service to London.
"Both train operators and Network Rail must ensure that there is effective communication to support passengers."
A Network Rail spokeswoman said: "We always try to have a direct cross-border route open, but that has not been possible on this occasion.
"The industry - both Network Rail and train operators - have looked at the alternatives, all of which cause more disruption for passengers.
"We also have a congested work programme caused by landslips, floods and strikes, severely limiting those alternatives.
"We understand the inconvenience this will cause to some of our customers and wish to reassure them that this will be a one-off."
READ NEXT -
Glasgow vigil for teen Brianna Ghey sees hundreds gather in George Square
Gangland hitman attends dad's funeral in Glasgow handcuffed to prison guard
Glasgow south side schools hit with extra strike dates to 'target' key decision-makers
Glasgow Aldi launch recruitment drive with 28 positions up for grabs
