Passenger services are now operated by Chiltern Railways. The line is regularly used by freight services operated by Freightliner and DB Schenker. The trains, referred to as 'binliners', carry waste from London to a waste facility near the site of the former Great Central Railway station at Calvert. For this purpose, during Chiltern Railways' Evergreen 2 project the line was resignalled with two new signals at Little Kimble, one for each direction of travel. These allow two trains to travel in the same direction, thus allowing a passenger service to follow the freight train or vice versa.