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Title |
Effectiveness and Field Applicability Analysis of Preventive Methods for Caught-in and Collision Accidents during Excavator Operations
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Authors |
김우인(Woo-In Kim) ; 오태근(Tae-Keun Oh) |
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DOI |
https://doi.org/10.11112/jksmi.2026.30.3.79 |
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Keywords |
굴착기; 협착사고; 충돌사고; 예방기법; 구획설정; LED 라이트 Excavator; Caught-in accident; Collision accident; Preventive method; Work-zone demarcation; LED light |
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Abstract |
This study analyzes the effectiveness and field applicability of preventive methods for reducing caught-in and collision accidents during excavator operations on construction sites. A questionnaire survey was conducted among field practitioners with experience in excavator-related work, including site supervisors, safety managers, signal persons, general workers, and equipment operators. Five preventive methods?LED lights, signal persons, warning alarms, work-zone demarcation, and rear cameras?were evaluated in terms of hazardous-zone recognition, access prevention, and ease of field application. The results showed that respondents had a very high awareness of caught-in and collision risks around excavators and strongly recognized the need for access control and visual hazard identification. Among the evaluated methods, work-zone demarcation showed the highest overall effectiveness, particularly in preventing worker access to hazardous zones, while LED lights were highly effective for visualizing hazardous zones under nighttime, low-visibility, and high-noise conditions. In contrast, rear-view cameras were considered more suitable as operator-assistance devices than as direct access-prevention methods. These findings suggest that excavator-related caught-in and collision accidents should be prevented through site-specific combinations of spatial separation, visual warnings, auditory warnings, and signal communication.
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