에스컬레이터 안전사고 분석을 통한 위험요인 분석 및 안전성 확보 방안에 관한 연구
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As of Dec. 31, 2011, the number of nation's escalators accounts for 24,248 units, 5.4% of total elevators in our country, safety accidents take up as many 539 case, 55.2% of total elevators' safety accidents. Escalator safety accidents show high incident ratio of primary safety accidents breaking ou...