Plans to close or modify 29 level crossings across Cambridgeshire have been submitted to the Secretary of State for Transport by Network Rail.
Members of the public have until April 25 to submit objections, representations and letters of support, following a number of public consultation events across the county in June and September.
Network Rail hopes its reforms will make the railways safer by removing the point where people can come into contact with trains.
The agency said: “The closures will also help improve efficiency and reliability. Their closure will facilitate potential future developments for faster and more frequent services.”
If agreed by the government, the closures will take place from late 2018.
The crossings earmarked for closure or modification include West River Bridge, Second Drove, Coffue Drove, Furlong Drove, two crossings in Prickwillow, Leonards, Newmarket Bridge, Wells Engine, Cross Keys, Clayway, Poplar Drove, Willow Row/Willow Road, Black Horse Drove, Chittering and Littleport Station.
As well as carrying out public consultations, Network Rail held meetings with Southeast Cambridgeshire MP Lucy Frazer, South Cambridgeshire MP Heidi Allen, county and district councillors, Natural England, the Environment Agency, Historic England and Highways England.
Copies of the applications and supporting documents are available to view and download here.