Total of 57 switches, 64 crossovers and 197 signals, on 9 road mi, throughout 11 zones are controlled from one central machine using new form of polar code control; interlocking control machine described. (see also Ry Age v 116 n 4 Jan 22 1944 p 232-5)


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    Title :

    Canadian national installs new type of all-relay interlocking at Montreal


    Additional title:

    Ry Signaling


    Published in:

    Railway Signaling ; 37 , Part 1, n 1


    Publication date :

    1944


    Size :

    9 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English