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Locomotive Crashworthiness

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Locomotive Crashworthiness
Posted by Murphy Siding on Friday, September 11, 2009 11:42 AM

    Are all locomotives built to the same crashworthiness(?) standards?  For example, is an SD-40 built to the same standards of crasch resistance as a an SW15?  Is an SD70, for example, built to higher (newer) standards than an SD40?

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Posted by oltmannd on Friday, September 11, 2009 12:27 PM
Yes. Crashworthiness standards were improved in the early 90s. The big changes were anticlimbers of specified strength were required, collision posts were made bigger and stronger, the end sheet of the cab had to be thicker and the end door had to be designed to keep shut in the event of a collision. There were other improvements made over the years. The industry adopted some changes in the early 70s known as "clean cab" to help prevent injuries. These included rounding the edges of the control stand and moving number board lamp access to outside the cab. In the late 70s, the FRA mandated improved glazing, front and side for locomotives and passenger cars.

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Posted by nbrodar on Friday, September 11, 2009 3:55 PM

 Don't forget moving the icebox out of the center of the cab.   We used to get an 8 hour claim for having a non clean cab locomotive.

Nick

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Posted by Murphy Siding on Friday, September 11, 2009 8:49 PM

?  What's an 8 hour claim?

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Posted by beaulieu on Friday, September 11, 2009 11:41 PM

Murphy Siding

?  What's an 8 hour claim?

 

Get an additional 8-hours of base pay for operating a locomotive with an unsafe cab environment.

 

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Posted by Murphy Siding on Saturday, September 12, 2009 8:57 AM

    Kind of like combat pay for the military?

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Posted by nbrodar on Saturday, September 12, 2009 9:39 AM

Murphy Siding

    Kind of like combat pay for the military?

 

It's actually a penalty against the company for not complying with the Clean Cab provisions of the contract.

Nick

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Posted by creepycrank on Saturday, September 12, 2009 10:09 AM
Shouldn't the penalty be paid by the guy who left the mess.
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Posted by GraniteRailroader on Sunday, September 13, 2009 12:22 AM

 Nope.

 It's the company's responsiblity to make sure that our work environment meets the details of the contract. 

They wanna ding us for every little thing possible, why shouldn't they get it shoved right back? 

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Posted by Paul Milenkovic on Monday, September 14, 2009 12:20 PM

GraniteRailroader

 Nope.

 It's the company's responsiblity to make sure that our work environment meets the details of the contract. 

They wanna ding us for every little thing possible, why shouldn't they get it shoved right back? 

Does this give you a passably usable locomotive toilet, or is the toilet "non-safety related" and there is no such luck that you could get compensated for an icky toilet?

If GM "killed the electric car", what am I doing standing next to an EV-1, a half a block from the WSOR tracks?

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Posted by nbrodar on Monday, September 14, 2009 1:03 PM

 An unusable toilet is a shoppable condition.  Meaning the locomotive can't be used until the condition is corrected.

Nick 

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Posted by oltmannd on Monday, September 14, 2009 2:21 PM
creepycrank
Shouldn't the penalty be paid by the guy who left the mess.
Clean Cab refers to designing out all the sharp corners, pinch points, etc. It was an AAR effort in the early 1970s along with the development of a standard control stand.

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Posted by WhiteLeather on Monday, September 21, 2009 9:00 AM

 To drift this conversation in a slightly different direction, PRR made center cabs important (think the Pf and GG1) for crash protection.  That idea went away, but one still sees engineers and conductors getting killed in front-end collisions.  Does anyone "in the know" foresee a return to center cabs as a safety response?  And, related - at least in my brain - to that, why aren't US locomotives double cabs like so many in other countries?  Wouldn't that make having to turn trainsets less of an issue, just run the loco around the cars, eliminate cab cars?

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Posted by CSSHEGEWISCH on Monday, September 21, 2009 10:24 AM

Doublecabs are an expensive proposition.  Consider that it would require a second control and brake stand and all the additional wiring and brake line piping it would require, plus the various and sundry non-mechanical requirements of a second cab.

The centercabs in question (P5's, GG1's, R1, DD2) did not have a prime mover as they were all straight electrics.  The Baldwin and LH centercabs had two prime movers, one in each hood.  The Alco C415 had only one prime mover, but suffered from adhesion problems because of unequal loading on the trucks.

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Posted by oltmannd on Monday, September 21, 2009 10:27 AM
WhiteLeather

 To drift this conversation in a slightly different direction, PRR made center cabs important (think the Pf and GG1) for crash protection.  That idea went away, but one still sees engineers and conductors getting killed in front-end collisions.  Does anyone "in the know" foresee a return to center cabs as a safety response?  And, related - at least in my brain - to that, why aren't US locomotives double cabs like so many in other countries?  Wouldn't that make having to turn trainsets less of an issue, just run the loco around the cars, eliminate cab cars?

No. The cab in the cab car costs the same as the cab you'd be adding to the locomotive....and it saves you having to run around the train - just change ends and away you go! METRA turns back trains on the main by having the engr simply walking the length of the train.

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Posted by beaulieu on Monday, September 21, 2009 10:38 AM

WhiteLeather

 To drift this conversation in a slightly different direction, PRR made center cabs important (think the Pf and GG1) for crash protection.  That idea went away, but one still sees engineers and conductors getting killed in front-end collisions.  Does anyone "in the know" foresee a return to center cabs as a safety response?  And, related - at least in my brain - to that, why aren't US locomotives double cabs like so many in other countries?  Wouldn't that make having to turn trainsets less of an issue, just run the loco around the cars, eliminate cab cars?

 

The cab design of the modified P5a and GG1 locomotives did provide superior protection compared to the boxcab design of the regular P5a locomotives, the tradeoff was a return to the poor visibility typical of steam locomotives. Modern locomotives offer better visibility and certainly equal collision protection. At some speed no amount of steel in front of the locomotive will protect the crew. The impact of their bodies on the front wall of the cab will cause serious enough injuries to kill them.

The reason why you don't see many doublecab locomotives in North America is the significantly higher costs of such an arrangement, combined with the more widespread use of multiple engine locomotive consists, which increase the likelyhood of one of the locomotives facing the right way.

In Europe where some electric locomotives are used in commuter service such that they work in push pull with a cab car at the other end, they will order singlecab locomotives also, such as these;

 

SBB Class 450

or these Italian locomotives

Trenitalia Class E464

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Posted by Lyon_Wonder on Monday, September 21, 2009 8:30 PM

The only doublecab diesel here in the US I can think of was a Baldwin cabbody with 2 "babyface" cabs on each end.  I think it was built in the late 1940s or early 50s.

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Posted by CSSHEGEWISCH on Tuesday, September 22, 2009 6:45 AM

Lyon_Wonder

The only diesel doublecab diesel here in the US I can think of was a Baldwin cabbody with 2 "babyface" cabs on each end.  I think it was built in the late 1940s or early 50s.

You're quite right.  CNJ 2000-2005 were Baldwin doublecabs, model DRX6-4-2000.  They were built for suburban service back in those days before push-pulls.

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Posted by kbathgate on Tuesday, September 22, 2009 2:42 PM

 

Centercabs obviously aren't a practical proposition for diesels with a single prime mover, but if you really wanted to put more of the locomotive forward of the cab to improve crashworthiness, the obvious solution would be to revert to 'long hood forward' operation, as formerly favored by N&W, SOU etc. for precisely that reason.

I assume that the problem with 'long hood forward' was that what you gained in crashworthiness you lost in poor forward visibility, and thus a greater risk of accidents happening in the first place?  Do NS and other roads which still run locomotives set up this way have different rules for operating long hood forward and short hood forward locomotives?

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Posted by WhiteLeather on Tuesday, September 22, 2009 7:32 PM

It's been a long time since I've seen a mainline loco running hood forward.  I know that the anti-climbers and safety cabs and other technology has improved the chances of growing old, but the engineer and conductor are still right up there.  Granted, high speed wrecks are gonna leave a mark, regardless of where the cab is - front, middle, or back.

No agenda here, just really curious.  Part of this is brought on by seeing the newer gensets and other locos with lower long hoods.  It got me wondering where safety steps and the physical characteristics of locomotives are going.  Thanks all for the input.

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Posted by MJChittick on Tuesday, September 22, 2009 10:21 PM

kbathgate

Do NS and other roads which still run locomotives set up this way have different rules for operating long hood forward and short hood forward locomotives?

NS ceased "long hood forward" operations at least 15 years ago if not before.

Mike

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Posted by beaulieu on Wednesday, September 23, 2009 1:33 PM

kbathgate

 

Centercabs obviously aren't a practical proposition for diesels with a single prime mover, but if you really wanted to put more of the locomotive forward of the cab to improve crashworthiness, the obvious solution would be to revert to 'long hood forward' operation, as formerly favored by N&W, SOU etc. for precisely that reason.

I assume that the problem with 'long hood forward' was that what you gained in crashworthiness you lost in poor forward visibility, and thus a greater risk of accidents happening in the first place?  Do NS and other roads which still run locomotives set up this way have different rules for operating long hood forward and short hood forward locomotives?

 

 

The biggest problem with Long-Hood forward operation was exhaust from the diesel engine entering the locomotive cab. The problem was especially bad on lines with tunnels. Norfolk Southern, the last railroad to run locomotives that way by design, has a lot of tunnels. I seem to recall an employee lawsuit over the matter, but my memory may be incorrect on that point. Of course local freight trains must run that way from time to time, but that is not the same situation.

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Posted by tree68 on Wednesday, September 23, 2009 2:08 PM

beaulieu
The biggest problem with Long-Hood forward operation was exhaust from the diesel engine entering the locomotive cab.

Times two if it's an ALCO like our C424 or RS3.

The place you're most likely to see long-hood-forward running nowadays is on out-and-back locals with only one locomotive.

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