Theory of equipment hinges around double integration process performed by electronic circuit, and planimeter on chart of recording voltmeter; instrument automatically provides full permanent record of time of arrival of vehicles, maximum delay on red, and operation of signals, as well as total delay on red; it was designed for use in Philadelphia and provides quantitative data needed by engineer to set accurately any type of traffic control equipment.


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    Title :

    New traffic delay measuring device


    Additional title:

    Traffic Eng


    Contributors:

    Published in:

    Publication date :

    1957


    Type of media :

    Article (Journal)


    Type of material :

    Print


    Language :

    English




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