Concrete crossing bearers. Implications of slightly reducing the prestress, on the strength and cost of the bearers (TM-CES-045)

Three concrete bearered crossovers were installed on British Rail running lines in 1981, following a feu earlier concrete bearered turnouts laid 10-15 years previously. Further installations are planned for 1984. A number of developments are currently being persued aimed at reducing manufacturing costs, one being to reduce the number...