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Suggested Citation:"8. Appendix E." National Academies of Sciences, Engineering, and Medicine. 2017. A Review of the Department of Transportation's Plan for Analyzing and Testing Electronically Controlled Pneumatic Brakes Letter Report (Phase 2). Washington, DC: The National Academies Press. doi: 10.17226/24903.
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Page 30
Page 29
Suggested Citation:"8. Appendix E." National Academies of Sciences, Engineering, and Medicine. 2017. A Review of the Department of Transportation's Plan for Analyzing and Testing Electronically Controlled Pneumatic Brakes Letter Report (Phase 2). Washington, DC: The National Academies Press. doi: 10.17226/24903.
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Page 29

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22 Appendix E Acknowledgment of Reviewers This report has been reviewed in draft form by persons chosen for their diverse perspectives and technical expertise in accordance with procedures approved by the NASEM Report Review Committee. The purposes of the independent review are to provide candid and critical comments that will assist the institution in making its published report as sound as possible and to ensure that the report meets institu- tional standards of objectivity, evidence, and responsiveness to the study charge. The review comments and draft manuscript remain confidential to protect the integrity of the deliberative process. The commit- tee thanks the following individuals for their review of this report: Christopher Barkan, University of Illi- nois at Urbana–Champaign; James O. Berger (NAS), Duke University; Grady Cothen, consultant; Peter Klauser, consultant; Kevin J. Renze, consultant; Walter Rosenberger, Norfolk Southern Corporation; John M. Samuels, Jr. (NAE), Revenue Variable Engineering, LLC; Roger R. Schmidt (NAE), International Business Machines Corporation; Howard A. Stone (NAS/NAE), Princeton University; and Terry Tse, Federal Railroad Administration (retired). Although the reviewers listed above provided many constructive comments and suggestions, they were not asked to endorse the conclusions or recommendations, nor did they see the final draft of the re- port before its release. The review of the report was overseen by the review coordinator, Susan Hanson (NAS), Clark University (emerita), and the review monitor, Robert Sproull (NAE), University of Massa- chusetts at Amherst. Appointed by NASEM, they were responsible for making certain that an independent examination of the report was carried out in accordance with institutional procedures and that all review comments were carefully considered. Responsibility for the final content of the report rests entirely with the committee and the institution.

  21  DOT’s Analysis and Test Plan to Assess the Effectiveness of ECP Brakes in Reducing the Risks Associated with HHFT Trains, Version 0.9 with notes on status as of August 3, 2017. Materials submitted by Joseph Brosseau [Transportation Technology Center, Inc. (TTCI)]:  Additional data relating to AAR/TTCI modeling analysis.  Data from AAR/TTCI relating to the analysis presented in the report Analysis and Modeling of Benefits of Alternative Braking Systems in Tank Car Derailments (R-1007). Materials submitted by Michael Rush (Association of American Railroads):  Memo from Todd Treichel (RSI-AAR Railroad Tank Car Safety Research and Test Project), dated October 19, 2016, providing information on the effects of train speed at the time of derailment on the conditional probability of release for derailed railroad tank cars.  Comments of the Association of American Railroads from Louis Warchot and Michael Rush (AAR) before the Pipeline and Hazardous Materials Safety Administration, Docket No. PHMSA-2012-0082 (HN-251).  Safety Performance of Tank Cars in Accidents: Probabilities of Lading Loss (RA 05-02), Railway Supply Institute and Association of American Railroads, January 2006. Comments from Kevin Renze (consultant) concerning suggested data for the NASEM committee to request and review from FRA and AAR/TTCI. Letter from Robin Rorick, American Petroleum Institute, dated July 21, 2017.

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A Review of the Department of Transportation's Plan for Analyzing and Testing Electronically Controlled Pneumatic Brakes Letter Report (Phase 2) Get This Book
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 A Review of the Department of Transportation's Plan for Analyzing and Testing Electronically Controlled Pneumatic Brakes Letter Report (Phase 2)
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TRB's Committee on the Review of the Department of Transportation's (DOT) Testing of Electronically Controlled Pneumatic (ECP) Brakes has issued its final letter report. In response to a Congressional request, the committee reviews the conduct of DOT's tests, reports of test results, and analysis comparing the performance of ECP brakes relative to other braking technologies in reducing the incidence and severity of spills of crude oil or ethanol from derailments.

The committee's report reviewing DOT's test and analysis plan, issued in February 2017, recommends that DOT test the timing of brake propagation for alternative systems, conduct statistical analyses of the multiple factors contributing to derailments, and extend its validation of its modeling and simulation approaches for comparing ECP brakes to other brake systems. The committee’s letter report reviewing the results of DOT’s testing and analysis, issued in September 2017, finds that DOT’s efforts to validate its model and simulation approaches are incomplete and unconvincing. Based on the results of testing and analysis provided by DOT, the committee is unable to make a conclusive statement about the emergency performance of ECP brakes relative to other braking systems.

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