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Metrolink Introduces PTC on San Bernardino Line

Metrolink commuter rail introduced Positive Train Control (PTC) technology on March 2 as a revenue service demonstration along the commuter railroad’s San Bernardino Line between Los Angeles and San Bernardino.

Metrolink Board Chair Shawn Nelson called the action “a huge step toward fully implementing an interoperable safety initiative that will keep millions of lives safe. … We remain on track to have our entire system fully operable with PTC well before the December 2015 federal deadline” mandated by the Rail Safety Improvement Act of 2008.

The system first launched PTC in revenue service demonstration last year under the authority of the Burlington Northern Santa Fe Railroad. That set of tracks includes portions of Metrolink’s Orange County, 91 and Inland Empire-Orange County lines. Testing is currently underway on two more lines.

PTC involves a complex GPS-based technology capable of preventing train-to-train collisions, over-speed derailments, unauthorized incursion into work zones and train movement through switches left in the wrong position. PTC monitors and, if necessary, controls train movement in the event of human error. PTC may also bring trains to a safe stop in the event of a natural disaster.

Metrolink estimates a total cost of $216.3 million for developing, installing and deploying PTC, using a combination of approximately 49 percent local, 41 percent state and 9 percent federal funding sources.


Metrolink recently introduced Positive Train Control technology in revenue service.


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