How positive train control can prevent tragedies
Thursday, May 14, 2015 - 07:20
in Mathematics & Economics
As investigators search for the cause of the Philadelphia Amtrak derailment, many are asking if the crash could have been prevented. The answer is "yes," according to backers of positive train control. David Begnaud reports on the new technology that lets a computer take over the controls of a train if it detects engineer error.