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Edition:Final report; May 1989-December 1989
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Abstract:A guide for the scheduling of in-service tests of rail to detect defects is presented. The guide is designed for self-adaptation to changing track conditions, as reflected by the total rate of defect occurrence per test, the rate of 'service' defect occurences (i.e., defects found by means other than scheduled tests), and the tonnage of traffic carried between tests. The relation of numbers in the guide to the results of earlier studies is summarized. Conventions for using the guide are explained. Example applications based on both simulated and actual track conditions are presented. Several suggestions are offered for development of a performance specification based on the guide.
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