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
  • Bill Brantley
  • John Choros
Tags:
  • critical components
  • plate girder
  • renovation & inspections
  • stringer measurements
Date Posted:
By
  • Ali Tajaddini
  • David Horwitz
Tags:
  • car bolster lateral loads
  • length & depth of defects
  • track geometry defects
  • type & number of defects
  • vehicle performance
  • vertical response
Date Posted:
By
  • Duane Otter
Tags:
  • heavy tonnage
  • manganese frogs
  • spring-rail frogs
Date Posted:
By
  • Richard Reiff
  • Scott Gage
Tags:
  • durability of materials
  • precise application alignment
  • transfer rate
Date Posted:
By
  • R.K. Steele
Tags:
  • high rail gage corner
  • internally initiated shell/DF (defect fracture) defectsdry worn rail
Date Posted:
By
  • David Read
  • Andrew Kish
Tags:
  • compression
  • effective longitudinal resistance
  • rail anchors
  • tension
  • timber tie track
Date Posted:
By
  • Jon Hannafious
  • Stephen Mace
Tags:
  • beneficial wheel set steering moments
  • gage corner relief
  • lubrication
  • truck warp angles
Date Posted:
By
  • John Mazza
  • Duane Otter
  • Carmen Trevizo
Tags:
  • C&NW
  • loaded coal trains
  • wheel load data
Date Posted:
By
  • Stephen Mace
  • Robert Martin
  • Ruben Pena
  • Kerry Hopkins
Tags:
  • angle of attack (AOA)
  • inclination angle
  • non-contacting sensors
  • rail surface quality
  • railhead shape
  • resolution of 1 mradian
  • vertical position
Date Posted:
By
  • David Davis
  • Joseph LoPresti
  • Stephen Handal
Tags:
  • coal train traffic
  • No. 20 size turnout
  • swingnose frog
  • switch points
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