Concrete sleeper performance observations at randomly selected sites on the Western Region (a follow up to report TM-CES-69 which involved sites on the W.C.M.L.) (TM-CES-077)

Report TM CES 069 dated July 1986 gave observations on concrete sleeper performance at randomly selected sites on the West Coast Main Line. This work is related to the general question of deterioration of sleepers in service and their anticipated life. Mention was made on page 1 that follow...