While a positive control check may not be warranted for each flight in certified airplanes, it’s definitely worth doing every time there has been any type of maintenance done to the airplane or ...

A 2008 train crash in Chatsworth killed 25 people and broke a long congressional stalemate on a nationwide rail safety project known as "positive train control." Twelve years later, that system is ...

MYNORTHWEST NEWS ‘Positive train control’ not activated at scene of derailment. Dec 18, 2017, 2:36 PM | Updated: 3:24 pm ...

— -- Several railroads will likely fail to meet congressionally-mandated deadlines for installation of Positive Train Control, technology that could have prevented at least 23 deaths and more ...

"Positive train control uses GPS track sensors and other sensors to determine both the speed the train is traveling and if there are any obstacles up ahead," the Two-Way wrote in 2015.