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Post by ongarparknride on Nov 26, 2007 19:51:48 GMT
Thanks for that and Cheers, undergroundgal.
I assume "SOT" is "start of traffic" or working operations, daily timetable etc.
They have hopefully sussed out and issued and trained all relevant installation staff that the Sun rises in the East, sets in the West, and issued them with compasses and diagrams of the Sun's alignment in the sky throughout the seasons. Like, hopefully, they have been doing ever since railway signalling was invented and decisions were made where to sight the signals.
Thanks to All for much interesting reply and comment here. Cheers, OPNR
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