Geometry Car Had Not Inspected New F Train Rail Before Derailment
The MTA is still investigating what caused a F train carrying almost 1000 passengers to derail in Woodside, Queens a week ago--injuring 19 passengers, 4 of them seriously--but investigators have identified a few clues that may hold the answer.
The section of track where the F went off the rails last Friday was only installed a matter of weeks before, at the end of February, and the section had not yet been inspected by the MTA's geometry train.
The track geometry car (what the MTA calls "New York City Transit's Wonder Train Car"
is a two-car train that uses ultrasound, thermal imaging, lasers and high-resolution video to measure things like the curvature and alignment of the track, and its smoothness.
http://blogs.villagevoice.com/runninscared/2014/05/geometry_car_had_not_inspected_new_f_train_rail_before_derailment.php
