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A Transit Agency Guide to Evaluating Secondary Train Detection/Protection Systems in Communications-Based Train Control Systems

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TRB's Transit Cooperative Research Program (TCRP) Web-Only Document 71: A Transit Agency Guide to Evaluating Secondary Train Detection/Protection Systems in Communications-Based Train Control Systems provides a practical approach to evaluating the appropriate level of secondary train detection/protection systems (STD/PS) for a given communications-based train control system application. In terms of detection, track circuits and axle counters are both considered and compared, including the broken rail detection capabilities of track circuits and the possibility of having no secondary detection at all.

The first part of this guide presents different technologies, and discusses communications-based train control deployment trends and feedback on operations from rail transit agencies around the world. The second part provides guidance for selection of an appropriate level of STD/PS, in terms of candidate technologies, product maturity, and potential risks. The document is accompanied by a PowerPoint presentation.

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Suggested Citation

National Academies of Sciences, Engineering, and Medicine. 2018. A Transit Agency Guide to Evaluating Secondary Train Detection/Protection Systems in Communications-Based Train Control Systems. Washington, DC: The National Academies Press. https://doi.org/10.17226/25063.

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Publication Info

93 pages | 8.5 x 11
DOI: https://doi.org/10.17226/25063
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