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An Engineering Psychology Based Analysis Of Ladder Setup Procedures, Alan Campbell
An Engineering Psychology Based Analysis Of Ladder Setup Procedures, Alan Campbell
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ABSTRACT
Accidents involving portable ladders are a common cause of serious occupational and non-occupational injuries throughout the industrialized world. Many of these injuries could be prevented with proper education, training and usage of portable ladders. This research focused on the human factors and engineering aspects of portable extension ladder usage. Results and analysis revealed evidence of unsafe acts that could lead to catastrophic ladder slide-out accidents in real-life situations. Six ladder setup methods were evaluated based on placement angles: the Basic, 75 Degree, Stand-Reach, L Sticker, 4:1, and Level methods. The level method produced the most accurate results with the …