Positive Train Location End-of-Train Final Report
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2020-03-01
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Edition:Technical Report September 17, 2018–September 16, 2019
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Abstract:The overall goal of the Positive Train Location (PTL) end-of-train (EOT) project was to build on the successes of the PTL Phase II project and further refine the use cases, review/modify PTL EOT segment requirements, and identify a path forward for addressing technical issues from the previous phase. Refined use cases and modified segment requirements facilitated the development of a functional PTL EOT segment that can operate in the on-track railroad environment in which it was intended to function. An analysis was conducted based on information surveyed from the Technical Advisory Group (TAG) to weigh options of operational need, segment performance, and overall PTL EOT segment unit price. The biggest driving operational need is to provide high confidence EOT positioning performance that enables secure and cost-effective fulfillment of the operational use cases identified. The PTL EOT segment will remain compatible with the head-of-train device (HOTD) segment specifications identified in the Association of American Railroads’ (AAR) Manual of Standards and Recommendations Practices (MSRP) Section K-2, Standard S-9103 “Precision Navigation Module.”
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