Restructure of maintenance teams is part of £4bn cost cutting drive
Network Rail has announced the axing of 1,800 maintenance jobs.
The company said it would cut the jobs by April 2011 although "no final decisions have been made" and it hoped to avoid compulsory redundancies.
The firm currently employs 33,000 people and the cuts are part of a drive to cut its budget by £4bn.
A company statement said: “Our plans to restructure our maintenance teams will improve the way we operate the network."
Earlier this week, it proposed the building of a new £34bn high-speed railway line between Scotland and London by 2030.