Ballast specifications of 46 railroads, representing 74% of total line mileage in United States and Canada, have been reviewed by ballast subcommittee of American Railway Engineering Assn in order to determine degree of conformity with AREA recommended standards; summary of specifications for crushed stone ballast; summary of specifications for gravel ballast.
Requirements for principal railroads
Rock Products
Rock Products ; 47 , n 7
1944
Article (Journal)
English
© Metadata Copyright Elsevier B. V. All rights reserved.
Technical requirements of modern railroads
Engineering Index Backfile | 1949
|Results obtained in 1927 on the five principal French railroads
Engineering Index Backfile | 1928
Engineering Index Backfile | 1937
|Engineering Index Backfile | 1892
Engineering Index Backfile | 1882
|