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    • steam4ian posted
    Posted in South Australia » Seaford line speed underwhelming

    For details of "Yellow Signal Rule" see:

    See: http://www.railpage.com.au/f-p1920526.htm#1920526

    BTW, does Adelaide have signal "overlaps"; if not, that might be a reason for keeping the Yellow Signal Rule?

    awsgc24


    Adelaide does have signal overlaps but their length is quite random and does not appear related to train speed. The signals protecting the approach to Brighton are located some 100s of metres from the facing switches they protect similarly for the down approach to Tonsley Junction. However the up signal protecting the main line at Tonsley Junction is almost on top of the trailing switch it is protecting. There are no overlaps at Showgrounds.

    There is some sense in the Yellow signal rule if it is applied sensibly rather than a blanket restriction. I have offered a sensible and low cost fix.

    Edit history

    Edited 27 Oct 2014 00:06, 7 years ago, edited by steam4ian

    For details of "Yellow Signal Rule" see:

    See: http://www.railpage.com.au/f-p1920526.htm#1920526

    BTW, does Adelaide have signal "overlaps"; if not, that might be a reason for keeping the Yellow Signal Rule?

    awsgc24


    Adelaide does have signal overlaps but their length is quite random and does not appear related to train speed. The signals protecting the approach to Brighton are located some 100s of metres from the facing switches they protect similarly for the down approach to Tonsley Junction. However the up signal protecting the main line at Tonsley Junction is almost on top of the trailing switch it is protecting. There are no overlaps at Showgrounds.

    There is some sense in the Yellow signal rule if it is applied sensibly rather than a blanket restriction. I have offered a sensibly and low cost fix.