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Re: Movable span bridges
>3. Safeworking
>A movable span bridge in a section of railway is a serious obstacle to
>safeworking. Study of safeworking methods is likely to prove rewarding.
I have a copy of the safe working instructions for the Grafton bridge at:
http://www-personal.usyd.edu.au/~stephen/trains/grafton.txt
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Stephen Tolhurst S.Tolhurst@isu.usyd.edu.au
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