A £100 million restructure of the railway network around Nottingham is set to cause disruption to Langley Mill and Alfreton stations.
Network Rail says the signalling and track work - set to take place between July 20 and August 25 will mean more reliable services and fewer delays at Nottingham station, and the railways will be able to cope with an increasing demand for rail travel in the future.
It means trains taking passengers from Alfreton and Langley Mill will continue to run to and fro the north as far as Leeds as normal.
But trains to Nottingham and Grantham and Newark will divert to East Midlands Parkway - where a replacement bus service will take passengers the rest of the way.
Managing director for East Midlands Trains David Horne, said it is trying to minimise delays felt by Alfreton and Langley Mill commuters.
He said: “Every effort has been made to deliver the best possible service for our passengers during Network Rail’s re-signalling works whilst recognising that some people will face considerable changes to their normal journey. Our advice for passengers is to be prepared and check in advance of travel at eastmidlandstrains.co.uk/nottingham.”