[TheList] The Answers to my Train Questions :)

Thu Nov 18 05:17:12 AEDT 2010

Awesome! Thanks for posting it.

> From: radiowiki at archnetnz.com
> To: thelist at radiowiki.org.nz
> Date: Wed, 17 Nov 2010 20:42:05 +1300
> Subject: [TheList] The Answers to my Train Questions :)
> 
> What do they refer to when they say 'Warrent to go on xyz'. 
> 
> A warrant is a verbal authority that is wriiten down by the loco driver
> and repeated back to the controller to give him permission to proceed
> along that particular piece of track.
> Its used in areas where the track is not controlled by ctc signaling.
> 
> Stop Signals and passing through them when they are red. 
> 
> Generally means there may be a signal failure for some reason and the
> signal reverts to red. 
> The loco driver then has to get verbal authroity to proceed past the
> signal as it is red. I think the form they use is a "mis 59" 
> 
> 'Compulsory Stop Boards'. 
> The stop boards are a means of protection for track workers and they act
> like a red signal. 
> The loco driver can not pass the boards until he has authority from
> train control who in turn gets this from  the ganger in charge of the
> work site.
> 
> Just after before midday today there was talk about heat control, or
> something. 
> 
> With the warm weather and trains running over the track it heats up to a
> point where it can buckle. 
> 
> They measure the track temp automaticly through sensors I believe and an
> alarm must go off to warn train control.
> 
> They then place a speed restriction on that area of track, usually about
> 40kph instead of normal speed of 80kph. 
> 
> Its due to the rail being welded together and can not expand as it wants
> to. 
> 
> They do a process called destressing in which the rail is cut and a 
> section taken out and then "pulled" together again and re welded.
> 
> 
> Today there was talk about someone trying to play train control from a
> train that I guess was on the wharf - I assume they were referring to
> local controllers?? 
> 
> Not to sure on that one. Probably someone trying to use his authority to
> much towards a train controller in regards to there wanted movements
> 
> What is 'The Box'? 
> It will be a signal box, yes they still use them
> 
> What is 'The Loop' - Heard that LOTS down in Chch, but I was just across
> the way from a shunting yard, although only had Control 1 - 5 channels
> in the scanner. 
> Its an area of double track used for crossing trains
> 
> They refer to Main Line Up, or something?? 
> Its when they have a double tracked area and each side is dedicated to a
> direction of travel,
> I guess you could explain it like on a road you have a left and right
> lane .
> 
> I have read that Train Control is based in Wellington..
> What would be based in Auckland?? 
> 
> They have signal boxes up there and I think train control was moved to
> Auckland too.
> 
> 
> 
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