for example Metro north has 4 of such units , one installed on phoebe Snow cars one on a bombardier car , one on a M-8 and one on a M-7. it pretty much guarantees a geometry reading on just about entire railroad once a week.
the units are not cheap but the 4 units are probably still cheaper than a actual Geometry
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car
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If Conductors are in charge, why are they promoted to be Engineer???
Retired Triebfahrzeugführer. I am not a moderator.