The optimum depth of ballast. An analysis of the nanhours spent in maintaining a section of railway involving different depths and types of ballast under the sleepers (E-099)

The Chief Engineer of the former London Midland and .Scottish Railway Company required comparative information on the maintenance of track laid with various depths of ballast under the sleepers, with the ultimate object of determining an optimum depth. A section of railway at Kegworth was selected for the investigation...