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NTSB looking into positive train control as a factor in Amtrak crash

Name: NTSB looks into PTC role in Amtrak crash in Washington State.
Uploaded: 2017-12-20T01:05:53.000Z
Duration: 2 min 14 s
Description: Positive train control or PTC is a system that helps enforce speed restrictions on trains. The NTSB says PTC was not installed on the train line involved in Monday's train crash in Washington State.

Positive train control or PTC is a system that helps enforce speed restrictions on trains. The NTSB says PTC was not installed on the train line involved in Monday's train crash in Washington State.