History, theory and practice; requisites for highway-crossing signals; flashing-light type; wig-wag type; maintenance; highway-crossing gates; crossing watchman's annunciators. From Am. Ry. Assn's book, Am. Ry. Signaling Principles and Practices, chapter 23, Highway Crossing Protection.


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    Titel :

    Highway crossing protection


    Weitere Titelangaben:

    Int. Ry. Congress Assn. -- Bul



    Erscheinungsdatum :

    1928


    Format / Umfang :

    15 pages


    Anmerkungen:

    16 Figs.


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :


    Highway crossing protection

    Engineering Index Backfile | 1915


    Highway crossing protection

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    Highway crossing protection

    Rudd, A.H. | Engineering Index Backfile | 1925


    Highway crossing protection

    Engineering Index Backfile | 1930


    Railroad-highway grade crossing protection

    Engineering Index Backfile | 1949