A scenario analysis of ladder fall accidents

Cohen, H. Harvey; Lin, Lee-Jean

doi:10.1016/0022-4375(91)90011-j

Cited by 44 publications

(19 citation statements)

References 1 publication

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“…Haslam and Bentley (1999) found that postal workers fell while descending steps or inclined drives 15 times as often as when ascending (p. 39). Cohen and Lin (1991) found that ladder accidents occurred during descent nearly twice as often as during ascent (p. 31).…”

Section: One Ent Prediction: Falling Cost Asymmetry Across Position Omentioning

confidence: 99%

Evolved navigation theory and the descent illusion

Jackson

Cormack

2007

Perception & Psychophysics

104

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Section: One Ent Prediction: Falling Cost Asymmetry Across Position Omentioning

confidence: 99%

Evolved navigation theory and the descent illusion

Jackson

Cormack

2007

Perception & Psychophysics

104

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“…Falling risk happens to be greater when estimating a vertical distance while positioned on top of it, rather than on the ground, because people are more likely to fall when descending than ascending (Cohen & Lin, 1991;Haslam & Bentley, 1999;Svanstrom, 1974;Tinetti, Speechley, & Ginter, 1988). Thus, we should find even greater overestimation of a vertical surface when standing on top of it than when standing on the ground-if navigation costs drive this distance overestimation.…”

Section: Related Researchmentioning

confidence: 99%

Evolved navigation theory and the environmental vertical illusion

Jackson

Cormack

2008

Evolution and Human Behavior

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“…Extrinsic conditions pertain more to the physical conditions existing when a task is being performed by the worker, including activity-related and environmental factors, such the task being performed and surface and other localized conditions. Cohen and Lin (1991) examined various extrinsic factors associated with falls from ladders, including overreaching (19%). Faegermann and Larsen (2000;2001) also concluded that the majority of accidents occur when users reach too far sideways, causing the ladder to tip or slip.…”

Section: Literature Reviewmentioning

confidence: 99%

Underlying causal factors associated with construction worker fatalities involving stepladders

Grant

Hinze

2013

CEB

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Stepladders are frequently utilized on construction projects as a means of access to elevation. Stepladder heights commonly range from 4 feet (1.2 m) to 14 feet (4.3 m). Since these heights are not extreme, there is a common misperception that stepladder use presents a low risk. On the contrary, extreme care must be exercised to ensure that work on stepladders is performed safely, as described in the conspicuously located recommendations and brightly-colored warnings that adorn virtually all newly-purchased equipment. Despite this, accidents involving stepladders occur on a regular basis. This study was conducted to better understand the underlying causes of these accidents. The narrative descriptions of 180 stepladder-related fatalities were obtained from the U.S. Occupational Safety and Health Administration and were analyzed to identify the at-risk behaviors that preceded the fatality incidents. The results showed that most of the incidents should have been anticipated and could have been avoided. Unsafe practices such as improper lockout-tagout of electrical equipment, loss of balance, working on a folded stepladder, over-reaching, straddling the ladder, "walking" the ladder, poor footing, and unstable/shifting ladders, among others were identified. Virtually all of these fatalities could have been avoided by adhering to the guidelines posted on the stepladders and by complying with basic safe construction practices.

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A scenario analysis of ladder fall accidents

Cited by 44 publications

References 1 publication

Evolved navigation theory and the descent illusion

Evolved navigation theory and the descent illusion

Evolved navigation theory and the environmental vertical illusion

Underlying causal factors associated with construction worker fatalities involving stepladders

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