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    Re: Railroad Time
    From: Paul Hirose
    Date: 2014 Mar 02, 23:24 -0800

    Railroaders checked their timepieces against designated "standard
    clocks". These were clearly marked, and are sometimes visible in train
    station photos.
    
    This New York Central rulebook from the early 1900s says their source of
    time was telegraphic signals from "the Washington, D.C. observatory"
    every noon.
    
    http://books.google.com/books?id=2pspAAAAYAAJ&pg=PA23
    
    Nowadays watches have declined in importance. Train dispatching is more
    like air traffic control than the old method of timetables. The
    dispatcher has radio communication with the crews, sees their trains on
    his "radar scope", and can operate switches and signals by remote control.
    
    My 1996 CSX railroad rule book says, "CSX Standard Time is equivalent to
    United States Eastern Time Zone time. CSX Standard Time will use the 24
    hour clock system." [In the old days they used A.M. and P.M.]
    
    "Designated employees must compare standard clocks daily. They must be
    compared with the chief train dispatcher's office or the train
    dispatcher. A standard clock that differes from standard time by more
    than 10 seconds must be reset to standard time.
    
    "Unless assigned to offices having standard clocks, employees governed
    by the timetable, while on duty, must carry a watch that indicates
    hours, minutes, and seconds. The watch must not lose nor gain more than
    one minute in a 12-hour period."
    
    The old business of watch inspectors and railroad approved watches is
    history. Employees are merely required to verify their watches are
    within 30 seconds of a standard clock before starting work.
    
    
    A lot of info on railroad standard clocks can be found at various Web sites:
    
    http://www.google.com/search?q=railroad+%22standard+clock%22&btnG=Search&hl=en&gbv=1
    
    Several sites mention the book "Selling the True Time" by Bartky. It's
    an interesting read.
    
    --
    I filter out messages with attachments or HTML.
    

       
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