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原文传递 REPEATABILITY AND REPRODUCIBILITY OF MANUAL PAVEMENT DISTRESS SURVEY METHODS.

题名：	REPEATABILITY AND REPRODUCIBILITY OF MANUAL PAVEMENT DISTRESS SURVEY METHODS.
作者：	Livneh-M
关键词：	CONFERENCES-; PAVEMENT-DISTRESS; CONDITION-SURVEY; SURVEY-METHODS; MANUAL-PERFORMANCE; REPEATABILITY-; REPRODUCIBILITY-; VISUAL-SURVEYS; ISRAELI-SURVEY-METHODS; PAVEMENT-MANAGEMENT-SYSTEMS; NETWORK-LEVEL; DATA-QUALITY
摘要：	Manual survey costs usually increase with the decrease in the subjectivity of the method chosen because of the inclusion of more details in the survey. Thus, it is important to find the tradeoff between cost and subjectivity. As subjectivity is related to repeatability (i.e., the capability of producing identical results by several rounds of measurement done by the same raters) or to reproducibility (i.e., the capability of producing identical results by different raters), these values were measured for both the United States Air Force (Pavement Condition Index) [USAF (PCI)] and Washington State Deaprtment of Transportation (Distress Rating) [WSDOT (DR)] procedures, as well as for the Israeli one-score method. A walkover survey was employed for the USAF (PCI) procedure, as well as both walkover and windshield surveys for the WSDOT (DR) process and the two recent Israeli procedures [DR and Distress Number (DN)]. It was found that the repeatability and reproducibility of the Israeli quick windshield survey do not differ substantially from those of the USAF (PCI) walkover analysis. The standard deviations of score differences associated with these methods generally yield similar values in the range of 8 to 13 points, with some exceptions. Moreover, a highly significant correlation has been found between the detailed walkover PCI values and those of the DN in the quick Israeli windshield survey. Accordingly, the Israeli windshield DN method is highly recommended for use in any PMS network level. In addition, for rating distresses in greater detail, the walkover WSDOT (DR) survey is also endorsed to save time and money. As for the windshield WSDOT (DR) survey, some modifications are still called for to make it a reliable method.
总页数：	Conference Title: Third International Conference on Managing Pavements. Location: San Antonio, Texas. Sponsored by: Transportation Research Board
报告类型：	科技报告