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wongm
Minister for Railways
Joined: May 26, 2005
Last Visited: Dec 2, 2008
Location: Geelong, Victoria
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Posted: Sun Aug 31, 2008 8:46 pm
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Over the past few months some new sensors have been popping up along the Regional Fast Rail lines.
From what I have heard these sensors will let V/Line monitor the temperature and stress of the rail from a remote location, and only apply WOLO speed restrictions when a measured threshold level is reached, rather than slow down trains whenever the temperature is forecast more than 'x' value.
The first are 'rail stress gauges' placed in the rail itself. They popped up on the Geelong line back in July, one at North Shore, one at Lara, and 2 more elsewhere:
A more recent appearance is these compounds trackside. They have a weather station, and two short lengths of track at right angles, fitted with more sensors. This one is near Lara, I have also seen two of these compounds on Ingleston Bank:
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TE2815
Minister for Railways
Joined: Mar 19, 2004
Last Visited: Dec 2, 2008
Location: Under the newsdesk !
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Posted: Mon Sep 01, 2008 4:50 pm
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Be interesting to see if sections of track that short are suitable enough to give an accurate reading.
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FieldShunt74
Chief Commissioner
Joined: Nov 06, 2004
Last Visited: Dec 3, 2008
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Posted: Mon Sep 01, 2008 5:11 pm
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Is the "speed restrictions in hot weather due to possible continuous welded rail misalignment" thing called WOLO in Victoria too?
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574M
White Guru
Joined: Mar 15, 2006
Last Visited: Nov 30, 2008
Location: Shepparton
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Posted: Mon Sep 01, 2008 5:57 pm
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| FieldShunt74 wrote: | | Is the "speed restrictions in hot weather due to possible continuous welded rail misalignment" thing called WOLO in Victoria too? |
mais oui; often fronts up in summer time and to add insult to injury, is not in our telegraph codes book! Term was borrowed from the folk north of the border...
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FieldShunt74
Chief Commissioner
Joined: Nov 06, 2004
Last Visited: Dec 3, 2008
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Posted: Mon Sep 01, 2008 6:51 pm
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That's cool. No, wait, hot. No, wait...
That's unusually magnanimous and non-parochial for interstate relations, isn't it? It's good, but. Plus it's a great 'word' to use. WOLO, WOLO, WOLO... Lotsa fun.
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kuldalai
Chief Commissioner
Joined: Jan 14, 2003
Last Visited: Dec 1, 2008
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Posted: Mon Sep 01, 2008 9:14 pm
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With the fenced compounds it is likely that what is being measured is the core temperature of the rail, rather than the amount of expansion as the expansion is both lengthwise and crossways and no doubt heightwise too .
The circular device would be to measure wind speed, not to generate power as that would be from available underground power on RFR lines.
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KEG
Locomotive Driver
Joined: Feb 28, 2008
Last Visited: Dec 3, 2008
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Posted: Tue Sep 02, 2008 12:44 pm
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It appears to have a solar panel to provide power..
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A4000Bear
Station Master
Joined: Jun 11, 2008
Last Visited: Dec 2, 2008
Location: Taradale, Vic
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Posted: Tue Sep 02, 2008 11:29 pm
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There is one of those fenced compounds on the Bendigo line, about a kilometre or two on the down side of Macedon. Its interesting to note it coincides with a long section of old wooden sleepered track that never got upgraded with the RFR.
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Xiphias
Station Master
Joined: May 26, 2008
Last Visited: Nov 27, 2008
Location: Hawthorn, Vic
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Posted: Wed Sep 03, 2008 12:27 am
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| kuldalai wrote: | | The circular device would be to measure wind speed, not to generate power as that would be from available underground power on RFR lines. |
The solar panel is to provide power; the wind speed device is known as an anemometer.
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The Vinelander
Chief Commissioner
Joined: Mar 28, 2006
Last Visited: Dec 3, 2008
Location: Ballan, Victoria on the Ballarat RFR Line
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Posted: Wed Sep 03, 2008 7:15 am
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| A4000Bear wrote: | | There is one of those fenced compounds on the Bendigo line, about a kilometre or two on the down side of Macedon. Its interesting to note it coincides with a long section of old wooden sleepered track that never got upgraded with the RFR. |
 It's probably next on the agenda.
Ballarat line is currently being upgraded to all concrete sleepers, even Bank Box Loop is being or been concrete sleepered.
Geelong line appears to have been completed, but I'll stand corrected by Marcus if necessary.
Bendigo, even with its long, penny pinching timbered sleeper sections will no doubt be concrete before too long.
Mike in Longreach.
The Vinelander, from Melbourne to Mildura was Victoria's only overnight sleeping car train which was launched 8/8/1972.
Ballan, the best town, on the best railway line, in the best state, of the best country in the World. Currently in Longreach.
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Fireman Dave
Chief Commissioner
Joined: Jan 12, 2003
Last Visited: Dec 3, 2008
Location: Probably Filthy McFaddens
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Posted: Wed Sep 03, 2008 7:54 am
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| kuldalai wrote: | | With the fenced compounds it is likely that what is being measured is the core temperature of the rail, rather than the amount of expansion as the expansion is both lengthwise and crossways and no doubt heightwise too . |
Expansion occurs in all directions, as long as the material is not constrained. So (for example) a rail shouldn't expand length wise (in theory, it's tied to the sleepers and shouldn't be able to move length wise) and the expansion should take place in other directions, height and width.
Dave Malcolm
DRIVER, PN CMD
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RM22
Train Controller
Joined: Nov 14, 2004
Last Visited: Nov 27, 2008
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Posted: Thu Sep 18, 2008 7:50 am
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WOLO
Speed restriction notice applies for one day. When predicted temperature 36 degrees or higher. Prepared by Rail Safety Manager. Sent to Metrol, Centrol, Train Crew Allocation Officer, Outstations, Rail Operators, Train Controllers and Signallers. Speed Limit Max. 90km all lines from 1200 to 2000 unless otherwise stated. When informed of a Wolo, driver must contact the Train Control (Metrol) and fill out Wolo Form. Cancelling - Maybe cancelled by rail safety manager but only 2 hours after a cool change. Signaller to advise drivers of cancelled Wolo.
RM22
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NR77
Chief Commissioner
Joined: Jun 24, 2005
Last Visited: Dec 2, 2008
Location: Sitting on an NR somewhere......
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Posted: Thu Sep 18, 2008 4:56 pm
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What does WOLO mean?
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574M
White Guru
Joined: Mar 15, 2006
Last Visited: Nov 30, 2008
Location: Shepparton
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Posted: Thu Sep 18, 2008 6:36 pm
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Some say:
W in WOLO stands for Welded Rail;
others say:
Warning of Low Overhead (which I suspect is a mischief definition)
still others say WOLO means
Warning of Line Overheat (which is fed to Cityrail staff, and is not an invention of my own; we have reports of this being fed to the learned at Petersham);
Others tell us that WOLO does not apply on sections on line where concrete sleepers are in use;
Other authorities say WOLO is for heat-based speed restrictions irrespective of whether the rail is welded or not.
On this page, http://www.railpage.org.au/telecode/ (which is the Victorian Railways Telecode Book) the term WOLO does not appear.
Some say "WOLO is certainly used for speed restrictions enforced over 36 degrees.... "
NSW has WOLO boards, which provide for reduced speed in declared conditions. In NSW, WOLO means 'Welded track - restrictions on speed of Operation of LOcomotives'
Generally, you can say it is for heat based speed restrictions. However, my research is unable to find any official definition for Victoria.
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Fireman Dave
Chief Commissioner
Joined: Jan 12, 2003
Last Visited: Dec 3, 2008
Location: Probably Filthy McFaddens
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Posted: Thu Sep 18, 2008 7:07 pm
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How many times does it have to be said? The term WOLO means absolutely nothing. It is a NSW railways telegraph code used for the introduction of heat related speed restrictions. 4 letter codes were used for all sorts of things and I believe none of them have any specific meaning.
Dave Malcolm
DRIVER, PN CMD
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