Technology Digests

MxV Rail’s Technology Digest e-Library spans over 30 years of research and testing for the Association of American Railroads (AAR). This work was made possible by the support of the AAR and its member railroads, as well as additional partners including the Federal Railroad Administration, suppliers and vendors, and allied universities.

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1,148 Technology Digests

Date Posted:
By
  • Kevin Sawley
  • Jian Sun
Tags:
  • 700 Brinell compared to 300 to 380 Brinell
  • grease lubrication
  • wheel/rail friction
Date Posted:
By
  • Steven Chrismer
  • Steven Clark
Tags:
  • conventional tamping practices
  • design lift tamping method
  • production tamping
  • spot locations
Date Posted:
By
  • A. John Peters
  • H.G. Woy
Tags:
  • ECP brake systems
Date Posted:
By
  • Kevin Sawley
Tags:
  • low levels of friction
  • SAE 1080 steel/nylon coatings
Date Posted:
By
  • Dingqing Li
  • David Read
  • Steven Chrismer
Tags:
  • low track modulus (LTM) test zone
  • rapid track-geometry deterioation
  • soft subgrades
Date Posted:
By
  • Satya Singh
  • Duane Otter
Tags:
  • deck beams
  • deck plate
  • fatigue life
  • floor system
  • middle stringers
Date Posted:
By
  • Duane Otter
  • Peter Rogers
  • David Davis
Tags:
  • No. 20 frogs
  • premium spring-rail No. 10 frogs
  • RMB frogs
Date Posted:
By
  • Duane Otter
  • Judy Stadler
  • Carmen Trevizo
Tags:
  • ballast retainers
  • concrete bridges
  • deck ties
  • raising of approach track
  • steel bridges
  • timber bridges
Date Posted:
By
  • David Davis
  • Joseph LoPresti
Tags:
  • AREA geometry turnout
  • lower damaging lateral forces
  • lower entry vs. higher entry angle tangential geometry turnouts
  • tangential geometry turnout
Date Posted:
By
  • David Davis
  • Jian Sun
  • Vincent Terrill
  • Bill Hansen
Tags:
  • preparation
  • removal of defects and work hardened metal
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