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
  • John Wang
  • Gerald Anderson
  • James Cline
  • Richard Smith
Tags:
  • acoustic wayside bearing defect inspection system
  • demodulation envelope detection
  • neural network used in bearing defect pattern recognition
  • three-dimensional time-frequency analysis
Date Posted:
By
  • Todd Treichel
  • Christopher Barkan
  • Milton Johnson
Tags:
  • non-accident caused releases (NAR)
Date Posted:
By
  • Steven Chrismer
  • Joseph LoPresti
Tags:
  • Steven Chrismer & Joseph LoPresti
Date Posted:
By
  • David Davis
  • Semih Kalay
Tags:
  • adjustable guard rails
  • elastic fasteners
  • extended leg replacement frog for welded turnouts
  • switch point guards in yards
Date Posted:
By
  • David Read
  • Dingqing Li
Tags:
  • 12-inch ballast
  • 39-ton axle load operation
  • 6-inch subballast layers
  • FASTĀ®
  • free water
  • geometry degradation
  • Low Track Modulus (LTM)
  • low-strength clay subgrade
  • structural granular layers
  • subgrade deformation
Date Posted:
By
  • Jon Hannafious
  • Stephen Mace
Tags:
  • curvature
  • gage wear rates
  • grinding passes
  • high rail gage corner grinding
  • lubrication
  • rail internal fatigue defects
  • rail surfaces
  • rail wear
Date Posted:
By
  • Sylvia Campodonico
Tags:
  • assess safety policies
  • develop safety actions
  • identify safety research priorities
  • rail equipment accident and incident database
  • software application readFRA
  • understand train accidents
Date Posted:
By
  • Douglas Foutch
  • Duane Otter
Tags:
  • 110-ton coal cars
  • axle loads
  • database of bridge loadings
  • floor systems
  • main girders
  • measuring dynamic car
  • revenue service freight traffic conditions
  • sheel
  • short spans
  • static design loading
  • truck
  • trusses
Date Posted:
By
  • Steven Chrismer
  • Milton Johnson
  • Carmen Trevizo
  • Joseph LoPresti
Tags:
  • conventional tamping
  • increased durability
  • reducting tamper-induced ballast degradation
  • tamping cycle time
Date Posted:
By
  • Roger Andes
Tags:
  • costs of landfill
  • drinking water standards
  • incinerator
  • performance standards for solid waste landfills
  • Tetra Tech Inc.
  • waste-to energy facilities
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