Abstract
In Korea construction industry, the increase of tower crane’s usage continuously and the accidents of tower crane are increasing simultaneously. But research on tower crane is insufficient for reducing the tower crane accident. This study aims to derive the importance ranking of accident factors of cab-control tower crane by AHP analysis. AHP survey was conducted on experts such as construction engineer, construction manager, safety engineer, and tower crane operator, who have more than 10-year career. The results of AHP analysis reveal that top ranking factor of cab-control tower crane’s accident is erection work. Therefore, the derived factors should be managed, and the priority measures taken for reducing the tower crane accidents according to the ranking of accident factors.
Highlights
The use of tower crane in construction sites has constantly increased since its first introduction in the 1980’s
This study aims to derive the importance ranking of accident factors of cab-control tower crane by Analytic Hierarchy Process (AHP) analysis
AHP survey was conducted on experts such as construction engineer, construction manager, safety engineer, and tower crane operator, who have more than 10-year career
Summary
The use of tower crane in construction sites has constantly increased since its first introduction in the 1980’s. According to statistics on the construction machinery status of the Ministry of Land, Infrastructure and Transport, in 2015, Korea had 3408 cab-control tower cranes (CC T/C). The number of tower cranes increased to 4385 CC T/C by 22 percent in 2019 [1]. As the number of tower crane used in construction site has increased steadily, there are potential accident factors of tower crane itself. Tower crane is dangerous and their various risk factors are inherent in the erection, lifting, and dismantling works [2]. The number of tower crane-related accidents in con-
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