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12 Sep 2024

Technical Reports

Advanced Track Geometry Forecasting Methods

Author
Serkan Sandikcioglu; Radim Bruzek

Subject Research, Track

Keywords: Prediction; forecast; track geometry; time series; degradation; Autonomous Track Geometry Measurement System; ATGMS

Abstract:

The Federal Railroad Administration (FRA) contracted ENSCO, Inc., to apply alternative forecasting approaches to foot-by-foot track geometry data. The research team used track...

Report Number
DOT/FRA/ORD-24/37
Office
RDI-21

11 Sep 2024

Technical Reports

Improved Polymer Composite Tie Performance

Author
Federal Railroad Administration

Subject Track

Keywords: Composite ties, laboratory testing, in-track testing, performance and safety, maintenance practice

Abstract:

For regions experiencing high rot and decay, engineered-polymer composite (EPC) ties offer a potential alternative to solid-sawn timber ties. However, these ties have a history...

Report Number
DOT/FRA/ORD-24/16
Office
RDI-21

10 Sep 2024

Other Reports

Vermont Rail System 242 Program Approval Letter

Author
RRS-11

Subject Conductor Certification

Keywords: Conductor

9 Sep 2024

Other Reports

Port Terminal Railroad Association (PTRA) Audit Report

Author
Federal Railroad Administration

Keywords: PTRA Audit Report, Report Date: September 9, 2024

Report Number
2023-PTRA Special Audit 11-1
Office
RRS

5 Sep 2024

Technical Reports

Evaluation of Modern Locomotive Crashworthiness Performance

Author
Kelly Ozdemir, Fadi Tahan, Dhafer Marzougui, Abdullatif (Bud) Zaouk

Subject Crashworthiness - Passenger Equipment

Keywords: FRA, AAR, NTSB, 49 CFR Part 229, S-580, crashworthiness, modern locomotive, collision, finite element model, finite element analysis

Abstract:

The goal of this project is to assess crew safety of existing locomotive crashworthiness requirements using existing modern freight locomotive crash data analyses and...

Report Number
DOT/FRA/ORD-24/35
Office
RDI-22