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Evaluation of the Consistency of Bridge Inspection Ratings in New York State

机译：纽约州桥梁检测评级稠度评价

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摘要

Previous studies by the Federal Highway Administration (FHWA) have shown significant variability in the rating of bridge elements through visual inspection. In this study, a detailed evaluation of the consistency of inspection ratings of four representative bridges in New York State has been conducted, using inspection data reported by 21 inspection teams employed by the New York State Department of Transportation (NYSDOT). The bridge condition rating scale of NYSDOT ranges from 7 to 1, with 7 being new and 1 being in a failed condition. In addition, the NYSDOT assigns ratings 8 and 9 to cases "not applicable" and "condition and/or existence unknown," respectively. In general, consistency is defined as "conformity with practices and procedures." In this study, consistency of inspection of elements has been quantified as a percentage of inspectors that rated the bridge element within +/- 1 of the median rating for elements with ratings 7 to 1, or as a percentage of inspectors who have assigned a rating of 8 or 9 to elements expected to be rated 8 or 9. Based on the evaluation of the consistency of elements of the four bridges in the study, the results show that 96% of the elements have a consistency of at least 90%. Only seven elements have been identified to have a consistency of less than 90%. For elements whose rating was supposed to be 8, approximately 97% of the elements had a consistency of at least 90%, whereas, for elements whose rating was supposed to be 9, 91% of the elements were inspected with a consistency of at least 95%. Overall team consistency based on inspection of all elements was approximately 98%. The results imply that the NYSDOT bridge inspection and training programs are effective, as evidenced by the reporting of consistent bridge ratings by multiple inspection teams. (C) 2021 American Society of Civil Engineers.
机译：之前的联邦公路管理（FHWA）的研究在通过目视检查中显示了桥接元件等级的显着变化。在这项研究中，已经进行了对纽约州四个代表桥的检查评级的一致性的详细评估，使用了纽约国家运输部（NYSDOT）雇用的21项检查团队报告的检验数据。 NYSDOT的桥梁条件额定值范围为7到1，7个是新的，1个处于失败状态。此外，NYSDOT分配给额定值8和9，分别为“不适用”和“条件和/或未知”的情况。通常，一致性被定义为“符合实践和程序”。在这项研究中，对元素的检查的一致性被量化为视察员的百分比，其额定达到+/- 1内的桥接元素，用于评级7至1的元素，或作为已分配评级的检查员的百分比对于预期的8或9个元素，预期为8或9.根据研究中四个桥梁的元素的一致性的评价，结果表明，96％的元素的一致性至少为90％。已识别出七种元素的一致性小于90％。对于所谓的额定值为8的元素，约97％的元素的一致性至少为90％，而对于该额定值为9的元素，则以至少为本的元素进行91％的元素，至少为本95％。基于检查所有元素的检查总体一致性约为98％。结果意味着NYSDOT桥梁检查和培训计划是有效的，通过多个检查团队报告一致的桥梁评级的报告所证明。 （c）2021年美国土木工程师协会。

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  • 来源
    《Journal of Infrastructure Systems》 |2021年第3期|04021016.1-04021016.16|共16页
  • 作者

    Agrawal Anil Kumar; Washer Glenn; Alampalli Sreenivas; Gong Xu; Cao Ran;

  • 作者单位

    City Univ New York City Coll Dept Civil & Environm Engn New York NY 10031 USA;

    Univ Missouri Dept Civil & Environm Engn 2502 Lafferre Hall Columbia MO 65211 USA;

    9 Stedman Way Loudonville NY 12211 USA|New York State DOT 50 Wolf Rd Albany NY 12232 USA;

    City Univ New York City Coll Dept Civil & Environm Engn New York NY 10031 USA;

    Hunan Univ Coll Civil Engn Changsha 410082 Peoples R China;

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