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52550
  
  

  21
Nov
2018
Research Results
Report on the New Rail Integrity and Performance Testing at the Mega Sites
Author
          Federal Railroad Administration

Subject
                    Heavy Axle Load (HAL)

**Keywords:** Rail, rolling contact fatigue, RCF, wear, friction control, grinding
**Abstract:** Since 2005, the Association of American Railroads (AAR) and the Federal Railroad Administration (FRA) have co-sponsored ongoing rail performance testing under mainline heavy...
Report Number
              RR 18-17

  Office
              RDI-21
    6
Jun
2018
Research Results
Ballast Degradation Under Heavy Axle Load Trains at the Western Mega Site
Author
          Federal Railroad Administration

Subject
                    Heavy Axle Load (HAL)

**Keywords:** Ballast degradation, triaxial testing, ballast box, heavy axle load, HAL
**Abstract:** Transportation Technology Center, Inc. (TTCI) and the University of Illinois Urbana-Champaign (UIUC), in conjunction with Union Pacific Railroad (UP), investigated ballast...
Report Number
              RR 18-09

  Office
              RDI-21
    27
Feb
2018
Research Results
Performance of No. 20 Frogs of Various Designs in Revenue Service
Author
          Federal Railroad Administration

Subject
                    Heavy Axle Load (HAL),
                    Track

**Keywords:** Special trackwork, turnout frogs, frog heel, frog point, HAL
**Abstract:** Transportation Technology Center, Inc. (TTCI) tested and evaluated the performance of four No. 20 fixed-point frogs on the Norfolk Southern Railway (NS) track as part of the...
Report Number
              RR 18-04

  Office
              RDI-21
    26
May
2017
Research Results
Industry Survey of Bolsters and Side Frames Removed from Service
Author
          Federal Railroad Administartion

Subject
                    Best Practices,
                    Facilities & Test Equipment,
                    Rolling Stock

**Keywords:** Bolster, side frame, casting, survey, steel
**Abstract:** Transportation Technology Center, Inc. (TTCI) conducted an industry survey of defective bolsters and side frames removed from service. Scrapped components (approximately 70...
Report Number
              RR 17-07

  Office
              RDI-22
    27
Apr
2017
Reference Materials
Transportation Technology Center (TTC) - Unmanned Aircraft Systems
Author
          Federal Railroad Administration

Subject
                    Facilities & Test Equipment,
                    High-Speed Passenger Rail

**Keywords:**  Transportation Technology Center, TTC, Unmanned Aircraft Systems, UAS
**Abstract:** The Federal Railroad Administration (FRA) owns the Transportation Technology Center (TTC) in Pueblo, Colorado. Since its dedication as the High Speed Ground Test Center in 1971,...

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