Pos­i­tive train con­trol

Daily Local News (West Chester, PA) - - NEWS -

PTC is a high pri­or­ity for the NTSB and in­ves­ti­ga­tors will want to know whether it could have pre­vented the crash, said board mem­ber Bella Dinh-Zarr.

The tech­nol­ogy uses dig­i­tal ra­dio com­mu­ni­ca­tions, GPS and sig­nals along­side tracks to mon­i­tor train po­si­tions. It can au­to­mat­i­cally stop or slow trains to pre­vent

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