사고분석 및 카이제곱 통계량을 이용한 승강기 안전성제고 방안

The number of the lifts installed and used in Korea totals up to 526,676 units as of the end of December 2014, due to the development and urbanization of this country. Since the lift is one of the convenience facilities and especially a kind of essential transportation facilities used by a majority ...