<html>
<head>
<style><!--
.hmmessage P
{
margin:0px;
padding:0px
}
body.hmmessage
{
font-size: 10pt;
font-family:Tahoma
}
--></style>
</head>
<body class='hmmessage'>
Awesome! Thanks for posting it.<br><br>> From: radiowiki@archnetnz.com<br>> To: thelist@radiowiki.org.nz<br>> Date: Wed, 17 Nov 2010 20:42:05 +1300<br>> Subject: [TheList] The Answers to my Train Questions :)<br>> <br>> What do they refer to when they say 'Warrent to go on xyz'. <br>> <br>> A warrant is a verbal authority that is wriiten down by the loco driver<br>> and repeated back to the controller to give him permission to proceed<br>> along that particular piece of track.<br>> Its used in areas where the track is not controlled by ctc signaling.<br>> <br>> Stop Signals and passing through them when they are red. <br>> <br>> Generally means there may be a signal failure for some reason and the<br>> signal reverts to red. <br>> The loco driver then has to get verbal authroity to proceed past the<br>> signal as it is red. I think the form they use is a "mis 59" <br>> <br>> 'Compulsory Stop Boards'. <br>> The stop boards are a means of protection for track workers and they act<br>> like a red signal. <br>> The loco driver can not pass the boards until he has authority from<br>> train control who in turn gets this from the ganger in charge of the<br>> work site.<br>> <br>> Just after before midday today there was talk about heat control, or<br>> something. <br>> <br>> With the warm weather and trains running over the track it heats up to a<br>> point where it can buckle. <br>> <br>> They measure the track temp automaticly through sensors I believe and an<br>> alarm must go off to warn train control.<br>> <br>> They then place a speed restriction on that area of track, usually about<br>> 40kph instead of normal speed of 80kph. <br>> <br>> Its due to the rail being welded together and can not expand as it wants<br>> to. <br>> <br>> They do a process called destressing in which the rail is cut and a <br>> section taken out and then "pulled" together again and re welded.<br>> <br>> <br>> Today there was talk about someone trying to play train control from a<br>> train that I guess was on the wharf - I assume they were referring to<br>> local controllers?? <br>> <br>> Not to sure on that one. Probably someone trying to use his authority to<br>> much towards a train controller in regards to there wanted movements<br>> <br>> What is 'The Box'? <br>> It will be a signal box, yes they still use them<br>> <br>> What is 'The Loop' - Heard that LOTS down in Chch, but I was just across<br>> the way from a shunting yard, although only had Control 1 - 5 channels<br>> in the scanner. <br>> Its an area of double track used for crossing trains<br>> <br>> They refer to Main Line Up, or something?? <br>> Its when they have a double tracked area and each side is dedicated to a<br>> direction of travel,<br>> I guess you could explain it like on a road you have a left and right<br>> lane .<br>> <br>> I have read that Train Control is based in Wellington..<br>> What would be based in Auckland?? <br>> <br>> They have signal boxes up there and I think train control was moved to<br>> Auckland too.<br>> <br>> <br>> <br>> _______________________________________________<br>> TheList mailing list<br>> TheList@radiowiki.org.nz<br>> http://radiowiki.org.nz/mailman/listinfo/thelist_radiowiki.org.nz<br> </body>
</html>