To meet requirements of traffic census, W.R.Sykes Interlocking Signal Co produced compact and readily portable counter which is accurate, in general, to within ± 5%. (see also Engineer v 191 n 4965 Mar 23 1951 p 394)


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    Title :

    Vehicle counter for road-traffic census


    Additional title:

    Engineering


    Published in:

    Engineering ; 171 , n 4441


    Publication date :

    1951


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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