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Impact of Change Blindness on Worker Hazard Identification at Jobsites

机译：变化失明对求职者危害识别的影响

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摘要

Due to the dynamic nature of construction sites, workers face constant changes, including changes that endanger their safety. Failing to notice significant changes to visual scenes-known as change blindness-can potentially put construction workers into harm's way. Hence, understanding the inability or failure to detect change is critical to improving worker safety. No study to date, however, has empirically examined change blindness in relation to construction safety. To address this critical knowledge gap, this study examined the effects of change types (safety-relevant or safety-irrelevant) and work experience on hazard-identification performance, with a focus on fall-related hazards. The experiment required participants (construction workers, students with experience, and students with no work experience) to detect changes between two construction scenario images that alternated repeatedly and then identify any changes. The results demonstrated that, generally, safety-relevant changes were detected significantly faster than safety-irrelevant changes, with certain types of fall hazards (e.g., unprotected edge hazards) being detected faster than other types (e.g., ladder hazards). The study also found that more experienced subjects (i.e., workers) achieved higher accuracy in detecting relevant changes, but their mean response time was significantly longer than that of students with and without experience. Collectively, these findings indicated that change blindness may influence changes in workers' situation awareness on jobsites. Demonstrating workers' susceptibility to change blindness can help raise awareness during worker trainings about how workers allocate and maintain attention. (C) 2021 American Society of Civil Engineers.
机译：由于建筑工地的动态性质，工人面临不断的变化，包括危害其安全的变化。未能注意到对视觉场景的重大变化，称为变更失明 - 可能会将建筑工人造成危害。因此，了解无法或未能检测到改变对于提高工人安全至关重要。然而，迄今为止没有研究过经验检查了与建筑安全性有关的变化失明。为了解决这项关键知识差距，本研究检测了变化类型（安全相关或安全无关）和工作经验对危险识别性能的影响，重点是与坠落有关的危险。该实验需要参与者（建筑工人，具有经验的学生和没有工作经验的学生）来检测反复交替的两个施工情景图像之间的变化，然后识别任何变化。结果证明，通常，比安全 - 无关的变化更快地检测到安全相关变化，其某些类型的秋季危险（例如，未受保护的边缘危害）比其他类型（例如，梯危险）更快地检测到。该研究还发现，更有经验的主题（即工人）在检测相关变化方面取得了更高的准确性，但其平均响应时间明显长于学生和没有经验的学生。集体，这些调查结果表明，变化失明可能会影响工作人员情况的变化对求职者的意识。展示工人的改变失明的易感性有助于在工人培训期间提高认识，了解工人如何分配和保持关注。 （c）2021年美国土木工程师协会。

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  • 来源
    《Journal of Management in Engineering》 |2021年第4期|04021021.1-04021021.14|共14页
  • 作者

    Solomon Tomay; Hasanzadeh Sogand; Esmaeili Behzad; Dodd Michael D.;

  • 作者单位

    George Mason Univ Dept Civil Environm & Infrastruct Engn Fairfax VA 22030 USA;

    Purdue Univ Lyles Sch Civil Engn 550 W Stadium Ave Hampton Hall 1229 W Lafayette IN 47907 USA|Purdue Univ Div Construct Engn & Management 550 W Stadium Ave Hampton Hall 1229 W Lafayette IN 47907 USA;

    George Mason Univ Dept Civil Environm & Infrastruct Engn Fairfax VA 22030 USA;

    Univ Nebraska Dept Psychol B82 East Stadium Lincoln NE 68588 USA;

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