Technical Reports

Safety Margin Testing of a 70-Ton Boxcar with Shifted Plywood Lading: Summary Results

  • 01
  • Sep
  • 1984
AUTHOR: George Kachadourian
SUBJECT: Facilities & Test Equipment
KEYWORDS: Boxcar Vibration Testing, Boxcar Dynamics, Lading Dynamics, Freight Car Truck Data
ABSTRACT: Tests were performed at the Transportation Test Center, Pueblo, Colorado, in a joint Association of American Railroads (AAR) and Federal Railroad Administration (FRA) effort in the April-May-June period of 1982. AAR objectives were to perform a "pilot" test on the Vibration Test Unit (VTU) as a demonstration that the facility could meet their requirements for lading damage prevention testing. Pilot test results have been reported by the AAR. The FRA performed "Safety Margin Tests" of a plywood lading that is suspected of being a derailment cause factor, with the objectives of determining conditions that cause the plywood to shift and the effect of the shifted plywood on derailment margins. Volume 1 presents a summary of the safety margin tests performed and test results. Volume 2 contains the data from which the summary was extracted.