By adding pavement where side road enters highway, thus channeling roadway vehicles, automatic gates now serve instead of manually operated gates on Boston and Maine crossing; gates are short arm type, with arm extending across each right hand highway traffic lane, leaving other lane unobstructed to permit vehicles to depart from crossing.


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    Titel :

    Traffic lanes for crossing gate protection


    Weitere Titelangaben:

    Ry Signaling Communications


    Erschienen in:

    Erscheinungsdatum :

    1955


    Format / Umfang :

    2 pages


    Medientyp :

    Aufsatz (Zeitschrift)


    Format :

    Print


    Sprache :

    Englisch


    Schlagwörter :



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