The government has cut £1bn from the rail infrastructure budget following the chancellor’s Spending Review.
Rishi Sunak had previously promised record infrastructure investment as part of the government’s “leveling up” agenda.
Until now, Network Rail’s “enhancement” budget for the five year period from 2019-24 had been set at £10.4bn.
But, this week rail minister Chris Heaton-Harris said that the budget would now be £9.4bn.
That has put a question mark over some long-planned improvements to rail infrastructure.
The BBC has contacted the government for comment.
The cuts were not mentioned in Spending Review documentation, which stressed record investment in strategic road and rails projects.