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Positive Train Safety Analysis

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Railways and "Positive Train Control"

According to the most recent Federal Railroad Administration’s (FDR) Office of Safety Analysis, the total number of railroad accidents to occur in the United States between 2006-2015 was 113,302, resulting in 7,146 deaths and 80,661 injuries (Federal Railroad Administration, 2015). The most recent event to occur was on May 12, 2015 when a train traveling more than 100 mph on a curve derailed and crashed in Philadelphia killing eight people and injuring more than two hundred. Investigators determined that the train was traveling far above the required speed limit of 50 as it neared the curve. Traditionally, to ensure operational train safety on different sections of tracks, engineers and maintenance crews rely on movement authority …show more content…

PTC is a computer based traffic management system that includes global positioning system (GPS), on-board computers and digital wireless communication data networks that calculate the braking distances for different types of trains and transmit information about train speed. It can also stop the train if the crew is unable to do so in an emergency. Specifically, PTC does the following: (1) monitor and control train movements with the intent to prevent train collisions; (2) Enforce speed limits to avoid over-speed derailments; (3) provide protection for workers on or near tracks within their work zones; and (4) keep trains from moving through misaligned switches or when a main line switch has been improperly positioned through human error (Lindsey, 2009). After the Philadelphia accident in 2015, the NTSB reported that derailment could have been prevented had positive train control technology (PTC) been operational on the effected segment of track (Weikel,

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