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(430719)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by Newkirk Images on Wed May 16 08:43:47 2007, in response to PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by South Brooklyn Railway on Tue May 15 16:29:33 2007.

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There seems to be something fishy about this car. Stainless steel is not supposed to rust or rot. The small area above the rot doesn't loot like stainless steel but rather a painted surface.

Just plating over this area with new stainless steel may hide the damage, but the structural integrity of that door sill may already be compromised causing the door not to open or close properly.

If this car has to be written off and scrapped are there any other usable NYCT R-44 cars sitting around because their mates were scrapped ?


Bill "Newkirk"

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(430736)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by Terrapin Station on Wed May 16 09:37:19 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by Newkirk Images on Wed May 16 08:36:23 2007.

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One NYCT R-44 had its steel band replaced with stainless steel.

You mean one set.

R-44 5228 @ Rockaway Park (A / S). This car has a stainless steel band replacing the usually painted carbon steel band. Photo taken by Brian Weinberg, 7/24/2003.<BR>
IMG_2125

R-44 5228

MORE PICS

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(430747)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by AMoreira81 on Wed May 16 10:04:02 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by Newkirk Images on Wed May 16 08:43:47 2007.

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5402 might still be sitting around. 5284 was used to replace 5248, which was scrapped.

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(430793)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by (SIR) North Shore Line on Wed May 16 12:27:33 2007, in response to PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by South Brooklyn Railway on Tue May 15 16:29:33 2007.

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Ugh...I guess bad maintenance goes all around Staten Island. The local buses, the express buses and the SIRT R44s are crap too.

Anyone who thinks the Pitkin R44s are horrible haven't seen anything until they've ridden a SIRT R44.

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(430819)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by R30A on Wed May 16 13:18:02 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by Terrapin Station on Wed May 16 09:37:19 2007.

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Half of one set...

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(430821)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by R30A on Wed May 16 13:19:04 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by AMoreira81 on Wed May 16 10:04:02 2007.

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No. 5248 was not scrapped. It is still at 207th yard.

the only scrapped rebuilt R44s are 5282 and 5319 IIRC.

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(430826)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by Terrapin Station on Wed May 16 13:49:52 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by R30A on Wed May 16 13:18:02 2007.

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Oh, ok.

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(430854)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by Jace on Wed May 16 15:09:42 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by Parkchester (East 177th St) on Tue May 15 18:10:37 2007.

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The comment about duct tape was a joke. Obviously, you'll need more to repair this one, but it is important to note that the car wasn't running like this - there's normally a cover over this area that was removed in the shop. And as I said, despite appearances, the corrosion is on a non-structural piece and therefore essentially cosmetic. Path it up, clean it and put a new cover on it and you're all set. This one's got plenty of miles left.

As for the redbirds, you had holes through the sidewalls which can actually be a good thing in that it allows water coming in through the door pockets to drain quicker (especially if the existing drains are plugged - probably a problem on this R44). Like this R44, it doesn't look good, but as long as the posts and their connections to the underframe are not rusted out, then the car is ok.

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(430888)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by South Brooklyn Railway on Wed May 16 16:32:42 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by J trainloco on Wed May 16 00:18:40 2007.

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True, but why is it only on the SIRT R44's?

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(430892)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by South Brooklyn Railway on Wed May 16 16:37:02 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by Newkirk Images on Wed May 16 08:43:47 2007.

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But I thought they has Carbon steel?

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(430893)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by South Brooklyn Railway on Wed May 16 16:39:25 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by (SIR) North Shore Line on Wed May 16 12:27:33 2007.

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Well, the SIRT R44's are getting refurbished.

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(430895)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by (SIR) North Shore Line on Wed May 16 16:42:19 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by South Brooklyn Railway on Wed May 16 16:39:25 2007.

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They are? No car I've ridden over the last few months had any signs of renovation, although they did show signs of neglect.

They're supposed to be replacing the SIR R44s with New Tech cars by 2011.

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(430897)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by South Brooklyn Railway on Wed May 16 16:43:31 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by (SIR) North Shore Line on Wed May 16 16:42:19 2007.

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You did not notice how shiny the cars are?

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(430899)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by SUBWAYMAN on Wed May 16 16:46:09 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by (SIR) North Shore Line on Wed May 16 12:27:33 2007.

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They weren't in good shape when I rode them last summer. The ceiling paint was peeling at the A/C vents and the seats looked worn. It would be a good idea to replace the SIRT R44s soon as they are approaching 40 years of age.

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(430902)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by (SIR) North Shore Line on Wed May 16 16:49:57 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by South Brooklyn Railway on Wed May 16 16:43:31 2007.

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That's normal though, the cars are just naturally shiny and washed down often at Clifton Yards. The interior is a whole different story though, some cars look horrible, but I would assume that's because the line is free and an extremely easy target for vandals.

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(430903)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by South Brooklyn Railway on Wed May 16 16:50:59 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by (SIR) North Shore Line on Wed May 16 16:49:57 2007.

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Someone told me there being refurbished, what exactly are they replacing/fixing/upgrading, I don't know yet.

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(430905)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by (SIR) North Shore Line on Wed May 16 16:56:26 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by SUBWAYMAN on Wed May 16 16:46:09 2007.

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It certainly is a good idea but..I have another idea. It was reported by the American Public Transportation Association, that the Staten Island Railway had seen one of the largest increases in ridership in the nation.

I think when it comes time for them to buy new trains, a fare-system at the more busier stations should be considered. If one enters at a free station and exits at a fare-zone station, they should be forced to either pay to leave or ride down to another free station. This would surely be cheaper than converting the entire line to a $2 fare as the MTA had in mind in the past.

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(430906)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by Jace on Wed May 16 16:56:33 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by Newkirk Images on Wed May 16 08:43:47 2007.

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Normally there is a stainless cover over this portion of the carbody. The cover was removed in the shop exposing the painted carbon steel support for this cover. Corrosion on this does not impact the structural integrity of the car so no need to write it off yet.

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(430910)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by SUBWAYMAN on Wed May 16 17:12:33 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by (SIR) North Shore Line on Wed May 16 16:56:26 2007.

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That's a good idea.

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(431186)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by R42 4787 on Wed May 16 22:22:16 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by error46146 on Tue May 15 20:59:40 2007.

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You hate the R46s that much?

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(431187)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by R42 4787 on Wed May 16 22:22:49 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by SUBWAYMAN on Wed May 16 16:46:09 2007.

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Hopefully some M-9s will come over to SI.

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(431191)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by South Brooklyn Railway on Wed May 16 22:25:29 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by R42 4787 on Wed May 16 22:22:16 2007.

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He's a loser.

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(431195)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by J trainloco on Wed May 16 22:32:37 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by South Brooklyn Railway on Wed May 16 16:50:59 2007.

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You are correct: Cars are being sent to CIYD for SMS. '(SIR) North Shore Line' just likes to complain about how Staten Island (justly) gets the short end of the stick.

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(431201)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by South Brooklyn Railway on Wed May 16 22:36:17 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by J trainloco on Wed May 16 22:32:37 2007.

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Alright, thank you. Now, is that car gonna survive, or get scrapped...

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(431248)

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Re: Worst NYC subway car MDBF rating (2006 year) goes to..

Posted by Train Dude on Wed May 16 23:32:17 2007, in response to Re: Worst NYC subway car MDBF rating (2006 year) goes to.., posted by Lou From Middletown NY on Mon May 14 21:55:05 2007.

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B Division

R-32 Jamaica-446, Pitkin-124, 207th St-12, Coney Island-12
R-38 207th St-196
R-40 Coney Island
R-42 Coney Island, East NY
R-44 Pitkin-272
R-46 Jamaica-752
R-68 Concourse-276 Coney Island-149
R-68A Coney Island-200
R-143 East NY-212
R-160 East NY-8, Coney Island-70


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(431251)

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Re: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by Train Dude on Wed May 16 23:36:04 2007, in response to Worst NYC subway car MDBF rating (2006 year) goes to..., posted by GOLD_12th on Mon May 14 01:52:07 2007.

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CAR....2006 year...Year before (2005)
R32.....100,301...136,029...DOWN 35,728
R38.....137,729....162,917...DOWN 25,188
R40.....145,045....126,825...UP 18,220
R42.....122,646....109,916...UP 12,730
R44.....141,914....115,491...UP 26,423 <-- Surprisingly better

R46.....140,098....151,037...DOWN 10,939
R62.....155,975....220,763...DOWN 64,788
R62A...129,388....157,315...DOWN 27,927
R68.....306,261....306,132...UP 129
R68A...266,845....235,779...UP 31,066
R142....188,014....386,026...DOWN 198,012
R142A..202,358....247,983...DOWN 45,625
R143....303,811....180,101...UP 123,710

Why are you suprised?


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(431386)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by Steve B-8AVEXP on Thu May 17 08:12:48 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by South Brooklyn Railway on Wed May 16 16:37:02 2007.

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Only the area where the blue stripe used to be is carbon steel. On the R-46s, the outer skin is all-stainless steel.

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(431736)

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Re: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by SUBWAYMAN on Thu May 17 18:00:43 2007, in response to Re: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by Bill from Maspeth on Mon May 14 02:15:10 2007.

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I agree with you. The R32s were built by Budd. As good as Budd was, their products could be pretty overrated particularly by the railfan community. Other car manufactures could build cars that are just as good as Budd if not better. I'm not bashing Budd but there are other car manufacturers out there who can build railcars just well as Budd did.

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(431797)

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Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by Grand concourse on Thu May 17 20:25:39 2007, in response to Re: PICRe: Worst NYC subway car MDBF rating (2006 year) goes to..., posted by R42 4787 on Wed May 16 22:22:49 2007.

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no, give them some m7's or m3's.

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(431963)

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Re: Worst NYC subway car MDBF rating (2006 year) goes to...

Posted by PATHman on Fri May 18 01:11:36 2007, in response to Worst NYC subway car MDBF rating (2006 year) goes to..., posted by GOLD_12th on Mon May 14 01:52:07 2007.

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I knew it. It's time for these dinosaurs to become extinct.

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(432422)

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How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by Train Dude on Fri May 18 19:05:34 2007, in response to Re: Worst NYC subway car MDBF rating (2006 year) goes to.., posted by Mitch45 on Mon May 14 12:18:18 2007.

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MDBF stands for the MEAN DISTANCE BETWEEN FAILURES!
The computation is matematically simple -
The number of miles traveled/# of failures for the same period of time. MDBF can be computed for a single car. A single class of cars, a single car fleet, a single shop fleet or the entire fleet.

For example:
The Jamaica shop fleet accumulates approximately 6 million miles per month. If they have 30 charged delays during that month the MDBF is 6,000,000/30 or 200,000 miles. If the R-46s accumulate 4.5 million miles during that month and have 15 charged delays then their MDBF is 300,000 miles while the R-32s with the remaining 1.5 million miles and 15 remaining delays would mean an MDBF of 100,000 miles.

The MDBF numbers posted appear to be the 12 month moving MDBF numbers for individual car classes. This is the most accurate indicator of overall performance because it mutes one-month spikes or plunges in the MDBF statistics. It's hardly a perfect measure but it does accurately reflect relative performance of various fleets and shops.

The hardest part of the MDBF equation to understand is the determination of what delays are charged and what delays are not. Not every incident of mechanical failure gets charged to car equipment and in some instances car equipment gets charged for delays that are unrelated to car performance.


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(432438)

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by aem7ac on Fri May 18 19:30:33 2007, in response to How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by Train Dude on Fri May 18 19:05:34 2007.

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The hardest part of the MDBF equation to understand is the determination of what delays are charged and what delays are not.

There are delays that are not charged? No wonder the NYCT does MMBF numbers much better than the T!

Although I am thinking you mean things like if it is a signal failure then it's not charged.

Then there are borderline cases where passengers repeatedly hold a door and eventually cause the door to fail, and this might or might not get charged.

The T charges every car related incident (cab signals, propulsion, doors, air, brakes) except for vandalism where the schedule hit is more than 4 minutes.

AEM7AC

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(432506)

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by Newkirk Images on Fri May 18 20:51:14 2007, in response to How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by Train Dude on Fri May 18 19:05:34 2007.

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TD,

Thanks for the detailed explanation of MDBF. Is the reason why the low R-32 number is because this was before the current SMS program and the MDBF should improve ?


Bill "Newkirk"

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(432511)

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by Zman179 on Fri May 18 20:55:46 2007, in response to Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by Newkirk Images on Fri May 18 20:51:14 2007.

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Some people think that it actually means Maintenance Daily Bullshit Figure...not that you heard that from me.

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(432512)

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by Train Dude on Fri May 18 21:00:18 2007, in response to Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by Newkirk Images on Fri May 18 20:51:14 2007.

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There are several reasons. The 6 year SMS (which is still on'going) should have a positive impact on the MDBF. As they say, "It couldn't hurt!".

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(432514)

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by AMoreira81 on Fri May 18 21:04:22 2007, in response to How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by Train Dude on Fri May 18 19:05:34 2007.

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If MBDF is released, why isn't another number that is equally important also released---average turnaround time that a car or other conveyance is out of service? (For instance, on the bus side, Yukon Depot has the 3d highest (NYCTA) MBDF, but it isn't making pullout.)

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(432525)

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by J trainloco on Fri May 18 21:51:55 2007, in response to How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by Train Dude on Fri May 18 19:05:34 2007.

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Thank you for the explanation. So the numbers posted are in Fleet miles, not individual car miles.

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(432569)

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by BIE on Fri May 18 23:26:32 2007, in response to Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by Zman179 on Fri May 18 20:55:46 2007.

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8-)

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(432618)

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by Jeff H. on Sat May 19 01:03:54 2007, in response to Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by J trainloco on Fri May 18 21:51:55 2007.

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The mean distance between failure is NOT calculated by keeping
a distance between failure counter on each individual car, and
then averaging the readings of those counters. It is, as TD
described, the total car mileage for a fleet divided by the
total number of chargeable failures. Statistics theory says
it is OK to do this, but I think only if the PDF is gaussian,
I don't remember, where's Baumann when you need him?

MDBF alone doesn't predict availability at all. One could
have a car class which has a very high MDBF, but also a very
high MTTR, and thus has poor availability. Placing the cars
into semi-permanent link sets multiplies the average MTTR.

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(432628)

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by aem7ac on Sat May 19 01:41:43 2007, in response to Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by Jeff H. on Sat May 19 01:03:54 2007.

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The mean distance between failure is NOT calculated by keeping a distance between failure counter on each individual car, and then averaging the readings of those counters.

Not to mention that you can't actually feasibly do that. Because the cars are clocking up so few failures, it's almost impossible to get a MMBF figure for one individual car. If the average car fails about twice a year, then monthly MMBF figures would look like nonsense, because some of the cars would not have had a failure that month and you will have divide by zero problems.

It is, as TD described, the total car mileage for a fleet divided by the total number of chargeable failures. Statistics theory says
it is OK to do this, but I think only if the PDF is gaussian,
I don't remember, where's Baumann when you need him?


Baumann would either confirm or deny. My sense is that statistics theory doesn't say anything about this because it's three different measures:

1. Averaging all the actual mileages between failure events would give you a number that is the MMBF since the when the mileage counts began, i.e. the expected miles run until failure event for the whole fleet, historically speaking. But this is kind of a useless statistics in terms of indicating how well a shop has done in a given period.

2. Averaging all the miles-ran-since-last-failure would give you a number that is less than the MMBF, and not the expected value of mileages run until failure event. If the mileage-to-failure distribution is random, then averaging the miles-ran-since-last-failure would give you half the value of the MMBF.

3. Taking the mileage ran in a given period and dividing it by failure events in a given period would give you the expected number of mileage-to-failure during that time. That is different from (1) because it only applies to the given period. This is the most useful statistics because it tells you how productive the shop forces are in terms of how many failures are being 'allowed' to happen normalized over the usage of the fleet. But the measure itself has very little to do with the actual mileage-to-failure for each individual car because (a) it only takes into account of failure events and mileages in the specified time period and (b) just because the expected mileage-to-failure is say 200,000 doesn't mean one particular car isn't going to sit down after 40,000 and the next guy isn't going to run for 800,000 miles.

MMBF is often driven by a number of bad actors in the fleet. The maintenance manager's job is to identify those bad actors and either fix them or park them. I once read some statistic that found 20% of a certain freight car fleet caused 80% of the train reliability problems. Some freight cars got sold off real fast at a discount!

I have some references on this. If anyone is interested email me and I can send you a PDF.

AEM7AC

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by Train Dude on Sat May 19 02:13:01 2007, in response to Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by AMoreira81 on Fri May 18 21:04:22 2007.

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I have one reason why turn-around time is not a good measure of performance. When a car is removed from service due to a defect, while the idea is to repair the defect and get the car back into service, many other things take place. The mate or mates are not considered OK mates. They are checked - top to bottom for function of key systems as well as ammenities such as lights, heat/AC, PA etc. In addition, if we have any fleet-wide mods or programs, these may be addressed as manpower and the needs of service may dictate. The ultimate goal/philosophy is to put a car back into service that is as reliable as it can be. Hence, I never allow a car to be turned around fast for the sake of speed.

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by J trainloco on Sat May 19 22:55:45 2007, in response to Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by Jeff H. on Sat May 19 01:03:54 2007.

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Errr, What's MTTR? Mean time to repair?

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Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating )

Posted by Jeff H. on Sun May 20 00:58:42 2007, in response to Re: How MDBF is Figured (was:Worst NYC subway car MDBF rating ), posted by aem7ac on Sat May 19 01:41:43 2007.

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What I meant about the stat theory is that the expected value
can be obtained by averaging a large number of trials.

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Re: Worst NYC subway car MDBF rating (2006 year) goes to..

Posted by subfan on Sun May 20 14:00:52 2007, in response to Re: Worst NYC subway car MDBF rating (2006 year) goes to.., posted by Train Dude on Wed May 16 23:32:17 2007.

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Train Dude -

The CI number of R-32s seems a bit odd to me. Based on that, CI should only be able to put out one train of 32s daily, with a two-car spare factor. I'm pretty sure, though, that I've seen at least two R-32 "B" trains at once, and as far as I'm aware, the B's equipment is provided solely by CI. Am I missing something?

Regards,

subfan

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Re: Worst NYC subway car MDBF rating (2006 year) goes to..

Posted by Train Dude on Sun May 20 16:28:07 2007, in response to Re: Worst NYC subway car MDBF rating (2006 year) goes to.., posted by subfan on Sun May 20 14:00:52 2007.

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According to the latest DCE car assignment matrix, Coney Island has just 12 R-32s assigned to it's fleet. This is because they now have 70 R-160s assigned to them and Jamaica needs R-32s to supliment since theirs are going through SMS. There are three possible explainations for what you saw:
1) It is possible that at the time you saw the 2 B trains, the transfer had not yet been physically completed OR
2) it is equally possible that Coney Island was down 1 train that AM and 'borrowed' a train from Jamaica. OR
3) RTO had a gap in service and swapped an R-32 F train into B service for a trip or so.
Any of the above is possible.


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Re: Worst NYC subway car MDBF rating (2006 year) goes to..

Posted by Q46 LTD Glen Oaks on Sun May 20 17:27:12 2007, in response to Re: Worst NYC subway car MDBF rating (2006 year) goes to.., posted by Train Dude on Wed May 16 23:32:17 2007.

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Im just wondering wouldn't it make more sense for the R160's to go to Concourse that way they'll last longer (smaller fleet= better maintenance) because at Coney they're just going to get mangled like the R68/a and R40S

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Re: Worst NYC subway car MDBF rating (2006 year) goes to..

Posted by Train Dude on Sun May 20 18:31:07 2007, in response to Re: Worst NYC subway car MDBF rating (2006 year) goes to.., posted by Q46 LTD Glen Oaks on Sun May 20 17:27:12 2007.

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The determination of where a new fleet goes is a very political process. In addition, you need to look at the physical condition of the assigned shop. How much upgrading will it need in order to support the new fleet. Finally, you also need to consider that people, in general, do not like change. Many people who ride the 'D' train may not be happy giving up their familiar and reliable R-68s for the smaller R-160s.

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Re: Worst NYC subway car MDBF rating (2006 year) goes to..

Posted by subfan on Mon May 21 18:13:51 2007, in response to Re: Worst NYC subway car MDBF rating (2006 year) goes to.., posted by Train Dude on Sun May 20 16:28:07 2007.

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OK; thanks. When were the remaining R-32s transferred out of CI?

Regards,

subfan

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Re: Worst NYC subway car MDBF rating (2006 year) goes to..

Posted by J trainloco on Mon May 21 18:23:07 2007, in response to Re: Worst NYC subway car MDBF rating (2006 year) goes to.., posted by Train Dude on Sun May 20 16:28:07 2007.

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Why only 12? That seems problematic.

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Re: Worst NYC subway car MDBF rating (2006 year) goes to..

Posted by Train Dude on Mon May 21 20:28:59 2007, in response to Re: Worst NYC subway car MDBF rating (2006 year) goes to.., posted by subfan on Mon May 21 18:13:51 2007.

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Gradually as the R-160s went into service.

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