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Direct-Fixation Track Structure
Report Number: CRP-CD-03
The Guidelines and the accompanying software provides detailed methodology for assessing the environment of a Direct Fixation fastener (such as vehicle loads and local environmental conditions) and, from that, the response of a track containing Direct Fixation fasteners. The response analyzed in the software includes rail deflections, load on each fastener, and fastener fatigue, among numerous other track parameters. The software provides essential information to assess a specific Direct Fixation track and fastener design, or to evaluate a range of parameter values to select a preferred set of values.

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