Passengers are advised that a weekend of engineering work will impact journeys between the East Midlands and Skegness.
Rail replacement buses will operate between Nottingham/Grantham and Sleaford due to the work.
On Saturday 8 and Sunday 9 November, Network Rail will carry out two projects to improve the railway condition.
A £1.3 million investment will replace jointed rail from the 1950s with continuous welded rail, providing a smoother ride and less future maintenance.
Author's summary: Track improvement work affects East Midlands to Skegness journeys.