SUMMARY OF VISUAL INSPECTION RESULTS CRACKED OR BROKEN FREIGHT CAR COUPLERS, KNUCKLES AND YOKES

This report contains the results from a visual inspection of 1097 broken freight car couplers, knuckle and yoke components collected by five railroads during a thirty day period. The sample was collected as part of a joint AAR-Railroad program, just prior to the start of this joint RPI-AAR Railroad Coupler Safety Research and Test Project, to initially determine the approximate extent and character of current failures in couplers, knuckles and yokes. The result of this inspection, when combined with current population data, do not permit the determination of failure rate for the various components because the proportion of the total industry failures represented by the sample is indeterminate and the sample is, for most components, too small to provide the desired reliability. The results from this inspection will, however, supply valuable insight required to determine the necessary procedures, data and sample size to achieve the project objective.

• Corporate Authors:

  Association of American Railroads Research Center

  3140 South Federal Street
  Chicago, IL  United States  60616
• Authors:
  • Morella, N A
  • COOK, R
• Publication Date: 1972-8

Media Info

• Features: Figures; Tables;
• Pagination: 122 p.

Subject/Index Terms

• TRT Terms: Couplers; Field tests; Freight cars; Mechanical failure; Statistics
• Old TRIS Terms: Freight car components; Knuckle failures; Yokes
• Subject Areas: Data and Information Technology; Railroads;

Filing Info

• Accession Number: 00080129
• Record Type: Publication
• Source Agency: Association of American Railroads
• Report/Paper Numbers: R-117
• Files: TRIS
• Created Date: Jan 29 1976 12:00AM