Signal departments of various railroads in United States have grown up in last 20 years from departments to which were assigned primarily duty of surrounding train movements with protection, to departments which must devise, install and maintain devices for expediting train movements to promote efficiency and economy in train operation; switch operation; insulated joints. Before Roadmasters' and Maintenance of Way Assn. (including discussion) (see also Ry. Signaling, vol. 23, no. 10, Oct. 1930, pp. 374-376, 1 fig)


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    Title :

    Track maintenance as affected by signal operation


    Additional title:

    Ry. Eng. Maintenance


    Contributors:

    Published in:

    Publication date :

    1930


    Size :

    3 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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