[TheList] The Answers to my Train Questions :)

Chris Hodgetts chris at archnetnz.com
Thu Nov 18 19:21:40 AEDT 2010


I guess so .. 

My only stipulation was it remain anonymous... so I respect that.. 
(Just like my Motorway section numbers)

But I dont see why not.. it's all really kinda logical when you think about
it :) 

On Thu, 18 Nov 2010 12:38:04 +1300, Scanhead <scanhead at gmail.com> wrote:
> Permission to wiki?
> 
> On Thu, Nov 18, 2010 at 7:17 AM, Phil W <suckerpunchnz at hotmail.com>
wrote:
> 
>>  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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>> > http://radiowiki.org.nz/mailman/listinfo/thelist_radiowiki.org.nz
>>
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>>




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