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Re: NYCT MDBF

Posted by Train Dude on Sat Feb 2 01:29:04 2008, in response to NYCT MDBF, posted by trainsarefun on Fri Feb 1 10:18:26 2008.

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Not quite! MDBF stands for Mean Distance Between Failure. For general purpopes it is the total mileage for a given set of cars;

* The entire fleet
* An entire contract of cars
* An entire shop fleet

for a given time period;

divided by the number of "in service" mechanical failures that result in delays.

For example;

R-44s travel 1.6 million miles per month. If they have 8 charged delays in that same month the MDBF = 1,600,000/8 or 200,000 miles.

Note: Based on previous similar threads let me say; I'm not interested in whether you agree with this measure or not. It is what it is.


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