ScotRail is to cut around 300 services per day in a new timetable that is set to come into force in May next year.
The rail operator's 'Fit for the Future' document sets out proposals for public transport in Scotland as the country emerges from the covid pandemic.
The changes from next May mean some 2,100 weekday trains running compared to 2,400 before the crisis.
As well as cutting services across the country, the proposed timetable will see a reduction in the number of trains travelling between Glasgow, Falkirk and Edinburgh.
"The reduction in the number of services between Edinburgh and Falkirk is expected to improve performance, along with increasing service occupancy rates and reducing costs," said Scotsrail.
"The timetable will provide one train per hour between Glasgow and Falkirk Grahamston via Stepps until early evening and one train per hour all day between Glasgow and Cumbernauld via Stepps.
"Passengers travelling between stations such as Cumbernauld and Edinburgh will be able to change trains at Falkirk Grahamston. Passengers travelling between Polmont, Linlithgow and Edinburgh will be served by services between Dunblane and Edinburgh and will continue to be served by services between Glasgow and Edinburgh via Falkirk High."
New services are being added on some routes, such as Dundee to Glasgow which will benefit from an hourly service calling at all stations between Dundee and Stirling.
It said that on other routes there may be slightly longer journey times, saying "it is more efficient to operate one long train calling at all stations, than have two shorter ones which split the calls between them".
The report claimed “over-capacity” varied across the network and cited the North Electric Line and the Argyle Line as being among the poorest performers.
But the majority of Glasgow services are not going to see changes when the new timetable is introduced next year.
The timetable for trains running from Glasgow to the likes of Ayr, Ardrossan and Largs, Inverclyde, Paisley Canal, Barrhead and Kilmarknock, Glasgow South Electrics, Argyle Line, North Electrics and Anniesland are expected to remain the same according to the plans.
Scotrail said it was 'not proposing to make significant changes' to these lines but added that some services from Glasgow, including the North Electric Line and the Argyle Line, will undergo further review for May 2023.
The rail operators said the new timetable would focus on improved punctuality and reliability of the trains.
Scotrail warned that returning to a pre-pandemic timetable would result in trains operating 26 million more vehicle miles each year for little customer benefit and would increase ScotRail's bill to the taxpayer from £30m to £40m each year.
“We are proposing a new timetable operating around 2,100 services per weekday as the foundation to encourage a return to public transport following the pandemic," it said.
The consultation is open from August 20 to October 1 this year, to seek opinions on the proposed timetables.
It comes less than three years after a 2018 winter timetable ushered in 115,000 additional seats on services and the introduction of more high-speed trains 385 electric trains.
