After extensive use, beginning in 1886, of power signaling of individual lever type, Italian railways are turning to relay interlocking; in present system at Bologna, operation of one switch sets all points in route and clears relative signal; complete track circuiting, with route and approach locking and other controls, is provided throughout, with color light signals.


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    Title :

    Relay interlocking at Bologna


    Additional title:

    Ry Gaz


    Published in:

    Railway Gazette ; 98 , n 13


    Publication date :

    1953


    Size :

    2 pages


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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