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Metro: Heat likely the cause of train derailment
The Washington Times ^ | July 7, 2012 | Matthew Cella

Posted on 07/08/2012 7:02:58 PM PDT by Tolerance Sucks Rocks

Metro officials on Saturday said excessive heat was the probable cause for a train derailment Friday in Prince George’s County.

Investigators said a “heat kink” due to extreme high temperatures and direct exposure to sunlight likely caused the rails to expand, resulting in the derailment.

The derailment was reported on the inbound stretch of the Green Line near the West Hyattsville Station around 4:45 p.m.

(Excerpt) Read more at washingtontimes.com ...


TOPICS: Government; News/Current Events; US: Maryland
KEYWORDS: derailment; greenline; heatwave; hyattsville; metro; pgcounty; railkink; railroads; rails; trains

1 posted on 07/08/2012 7:03:01 PM PDT by Tolerance Sucks Rocks
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To: Abundy; Albion Wilde; AlwaysFree; AnnaSASsyFR; bayliving; BFM; cindy-true-supporter; ...

Maryland “Freak State” PING!


2 posted on 07/08/2012 7:04:03 PM PDT by Tolerance Sucks Rocks (Obama should change his campaign slogan to "Yes, we am!" Sounds as stupid as his administration is.)
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To: Tolerance Sucks Rocks

...since they first began laying tracks


3 posted on 07/08/2012 7:04:53 PM PDT by Doogle ((USAF.68-73..8th TFW Ubon Thailand..never store a threat you should have eliminated))
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To: Tolerance Sucks Rocks

It was so hot.

How hot was it?

It was so hot that the.......


4 posted on 07/08/2012 7:17:55 PM PDT by hole_n_one
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To: Tolerance Sucks Rocks

Investigators said a “heat kink” due to extreme high temperatures and direct exposure to sunlight likely caused the rails to expand, resulting in the derailment

Wow, there are probably thousands of derailments caused by rails being exposed to sunlight ... I can’t believe that the MSM investigative reporters haven’t spent weeks of national exposes on this looming national rail crisis. Should citizens go down to the nearest train tracks and shade them with umbrellas? Should the Dept. of Transportation institute new rail specifications?


5 posted on 07/08/2012 7:21:12 PM PDT by RetiredTexasVet (Skittle pooping unicorns are more common than progressives with honor & integrity.)
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To: Tolerance Sucks Rocks
Even cooks can do thermal expansiion equations. Duh. We live with ovens.

Why can't a state agency?

/johnny

6 posted on 07/08/2012 7:22:45 PM PDT by JRandomFreeper (Gone Galt)
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To: Tolerance Sucks Rocks

Should of made those rails shorter!


7 posted on 07/08/2012 7:23:38 PM PDT by Revolting cat! (Bad things are wrong!)
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To: RetiredTexasVet

Yeah, I guess they haven’t seen those tracks in the Mojave Desert where it hits 115 every Summer. Railbed first laid down in 1880 and no derailments yet.


8 posted on 07/08/2012 7:32:54 PM PDT by Inyo-Mono (My greatest fear is that when I'm gone my wife will sell my guns for what I told her I paid for them)
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To: JRandomFreeper

It is interesting. If the rails are the segmented kind, it’s smart to leave a small space between the rail ends for expansion.

These rails are probably the continuous kind, which are basically rolled out for miles on end, with only a few breaks.


9 posted on 07/08/2012 7:39:00 PM PDT by Tolerance Sucks Rocks (Obama should change his campaign slogan to "Yes, we am!" Sounds as stupid as his administration is.)
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To: Tolerance Sucks Rocks; All

Past history and my gut instinct says the engineer was either drunk, high or taking a nap.

If rail tracks were known to expand due heat, extreme or otherwise, wouldn’t they have expanded already?


10 posted on 07/08/2012 7:44:31 PM PDT by Jack Deth (Knight Errant and Resident FReeper Kitty Poem /Haiku Guy)
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To: Tolerance Sucks Rocks

So they built a system in Washington that couldn’t take 100 degree temperatures? Either stupidity before or lying now.


11 posted on 07/08/2012 7:52:08 PM PDT by Our man in washington
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To: Tolerance Sucks Rocks

I searched on google for “heat kink” and all it returns are references to the Metro rail system. It seems like this would be a noticable problem in many other places, but it doesn’t seem to be a problem anywhere else. Perhaps they need new rail engineers that have dealt with the sun before.


12 posted on 07/08/2012 8:14:49 PM PDT by Vince Ferrer
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To: Vince Ferrer

Try googling warped rails, heat warping, derailments, etc.


13 posted on 07/08/2012 8:17:35 PM PDT by piasa (Attitude adjustments offered here free of charge)
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To: piasa

Also sun kinks. I recall them as daily hazard on the Santa Fe but inspections and cautions increased.


14 posted on 07/08/2012 8:40:16 PM PDT by sgtyork (The secret of happiness is freedom, and the secret of freedom, courage. Thucydides)
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To: Tolerance Sucks Rocks
Metro: Heat likely the cause of train derailment.

I find this hard to believe. Do they use different track materials in the desert. Its going to be 118 F tomorrow and the trains will roll past just like they do every other day.

15 posted on 07/08/2012 9:47:07 PM PDT by gunsequalfreedom (Conservative is not a label of convenience. It is a guide to your actions.)
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To: gunsequalfreedom

Maybe it has to endure a wider temp range there. Well below freezing to sweltering summer. The desert doesn’t usually get that cold.


16 posted on 07/08/2012 9:50:35 PM PDT by HiTech RedNeck (let me ABOs run loose, lew)
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To: HiTech RedNeck
Maybe it has to endure a wider temp range there. Well below freezing to sweltering summer. The desert doesn’t usually get that cold.

I had not thought of that. It is not the heat, it is the range. It certainly does not get 20 below here. Range would be about 32 F to 120 F. Good point you raise.

17 posted on 07/08/2012 9:58:55 PM PDT by gunsequalfreedom (Conservative is not a label of convenience. It is a guide to your actions.)
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To: Tolerance Sucks Rocks

Maybe they should rename the Metro to the

Train Heat Kink Link.


18 posted on 07/08/2012 10:44:32 PM PDT by Jack Hydrazine (It's the end of the world as we know it and I feel fine!)
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To: Tolerance Sucks Rocks

Apparently they are indeed continuous welded rails, and also apparently they weren’t laid correctly (there is a way to lay them that prevents heat kink). Jointed rails survive on only a few busy urban railways nowadays (NYC I think is one), and they always left expansion space.


19 posted on 07/08/2012 11:13:30 PM PDT by Olog-hai
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To: Tolerance Sucks Rocks

Imagine the thought process that came up with the idea heat caused the rails to warp, and then consider the heat in the California desert where rails never seem to buckle.

This global warming thing better kill us quick before people go stark raving mad. They’ve got a good jump on that already.


20 posted on 07/09/2012 12:38:30 AM PDT by DoughtyOne (Remove all Democrats from the Republican party, and we won't have much Left, just a lot of Right.)
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To: Vince Ferrer

“It seems like this would be a noticable problem in many other places...”

This has never happened in NYC, so far as I can remember. There are miles and miles of outside tracks in NY, and while there have been problems in the winter with switches freezing, I don’t ever remember a derailment caused by heat.


21 posted on 07/09/2012 3:36:07 AM PDT by jocon307
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To: Our man in washington
So they built a system in Washington that couldn’t take 100 degree temperatures? Either stupidity before or lying now.

This says it all, the funny thing being that the author and publisher gave the book this particular title oblivious to the irony of it ...


22 posted on 07/09/2012 3:57:23 AM PDT by tanknetter
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