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To: montag813
Seems like they may have caused the derailment by making matters worse. Physics would suggest that it would be better to ride through a "disjointed" track rather than creating vibrations with high-pressure emergency brakes which would tend to exacerbate the flawed fit between track and wheel-rut.

Yeah, well that's a "damned if you do, damned if you don't" situation, since going through a disjointed rail section at speed isn't apt to be safe either.

Still, the earlier question about whether the rear of the train was pushing the front, with the passengers in the middle, seems like a good one. Passenger cars today are constructed to be unbelievably rigid. While this is in many ways better than the old days when they would "telescope", crushing anyone inside, it still does not allow any place to dissipate the kinetic energy of a train going 60mph.

One thing I was wondering about is whether it would be useful to construct trains with one or two "crusher" cars which would not be populated but would be designed to collapse to a fraction of their original length without derailing, and possibly to come apart in case the train in front derailed (so as to avoid if at all possible derailing the cars in back).

Although in the Bourbonais crash a few years ago the locomotive was in front, I feel somewhat paranoid about trains where the locomotive is in the rear. If the front of such a train hits anything, the locomotive is going to put a lot of kinetic energy into the rest of the train.

9 posted on 04/20/2002 7:38:06 PM PDT by supercat
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To: supercat
Not sure what is meant by a "disjointed" section..my guess is the joint came apart...which probably means somehow the bolts came out or a section of rail at the weld failed. The other possibility is that the track was "out of guage" possibly from spikes being pulled (on traditional wooden ties). Running a motor car over the section of track during the daylight is the norm for track inspections. Any track carrying passengers vs freight is subject to much greater inspections (at least in theory). As far as running an inspection train ...xraying welds or Magna fluxing rail..I doubt it is done very often...certainly not once a day or between trains.. As Forrest Gump said..." It happens".....
10 posted on 04/20/2002 8:23:18 PM PDT by joesnuffy
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