Applications of item response theory to measuring the safety response competency of workers in subway construction projects

被引:19
|
作者
Zhou, Zhipeng [1 ]
Guo, Wenya [1 ]
机构
[1] Nanjing Univ Aeronaut & Astronaut, Dept Management Sci & Engn, Coll Econ & Management, Nanjing 211106, Jiangsu, Peoples R China
基金
中国博士后科学基金; 中国国家自然科学基金;
关键词
Subway construction worker; Safety management; Safety response competency; Item response theory; Discrimination parameter; Difficulty parameter; WUHAN METRO CONSTRUCTION; RISK IDENTIFICATION; TUNNEL CONSTRUCTION; ACCIDENT PREVENTION; CLIMATE; MODEL; PERFORMANCE; BEHAVIOR; MANAGEMENT; ATTITUDES;
D O I
10.1016/j.ssci.2020.104704
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
Ceaseless construction accidents seriously influence the sustainable development of subway infrastructure projects. Unsafe behavior regarded as the major accident causation is the external manifestation of insufficient competency in safety response. Main aim of this study is to employ item response theory (IRT) towards a quantitative framework to measure safety response competency of individual labor at subway construction sites. A total of forty-three questionnaires were collected from three types of subway construction workers of shield machine operators, segment erectors and machinery maintenance laborers. The findings signified that only one worker had a high level of safety response competency. The other workers' safety response competencies were in the levels of low or moderate. Ten situational questions in the questionnaire were analyzed and classified according to discrimination and difficulty parameters, which is benefit of customizing safety training programs for site workers with unequal safety response competency in subway projects.
引用
收藏
页数:11
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