한국건설관리학회논문집 (Korean Journal of Construction Engineering and Management)

  • 제22권3호
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  • Pages.52-60
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  • 2021
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  • 2005-6095(pISSN)
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  • 2465-9703(eISSN)
한국건설관리학회 (Korea Institute of Construction Engineering and Management)
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해외 프로젝트 시공단계 리스크 요인의 실제 비용 초과 영향과 현장관리자 인식 차이 분석

A Comparative Analysis of Risk Impacts on Cost Overrun between Actual Cases and Managers' Perception on Overseas Construction Projects

  • Lee, Kyung-Tae (Department of Architectural Engineering, Hanyang University) ;
  • Ann, Hannah (Department of Civil and Environmental Engineering, University of Illinois at Urbana-Champaign) ;
  • Kim, Jae-Won (Department of Architectural Engineering, Hanyang University) ;
  • Kim, Ju-Hyung (Department of Architectural Engineering, Hanyang University)
  • 투고 : 2021.02.26
  • 심사 : 2021.03.22
  • 발행 : 2021.05.31
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초록

국내 시공사의 해외 건설 비중이 증가하면서, 발생하는 리스크로 인한 비용초과는 시공사의 재정 상황에 막대한 영향을 끼친다. 특히, 현지 관리자의 올바른 시공단계의 리스크 인식은 실질적인 관리에 영향을 끼친다. 그러나 실제 사례에서 발생한 리스크 요인의 비용초과 영향도와 현장 관리자의 인식도에는 차이가 있다. 따라서 이 연구는 리스크 관리를 위한 비용초과 대응전략 구축 이전에 해외 건설 시공단계 리스크 요인을 기반으로 실제 사례와 현지관리자의 인식도 비교를 목표로 한다. 우선, 이론고찰을 통해 선별된 리스크 요인을 기반으로 20개 사례에서 발생한 290개의 비용초과 데이터 기반으로 몬테카를로 시뮬레이션을 통해 추가 데이터를 획득한 후, 다중회귀분석으로 얻을 수 있는 표준화계수를 통해 요인별 비용초과 영향도를 구하였다. 또한, 42명의 현지관리자를 대상으로 동일 요인에 대한 인식도 파악을 위해 설문조사 진행 후, SWARA를 활용하여 분석하였다. 두 데이터 비교 결과, '하청업체와의 갈등', '현지 커뮤니티와의 갈등' 등의 갈등 관련 리스크들이 높은 비용초과를 보인다. 그러나 현지관리자들은 이를 낮은 순위로 인식하며, '자재 가격의 변동', '시공 품질 오류' 등에 대해 높은 순위로 인식하고 있었다. 따라서 현지관리자들의 갈등 리스크에 대한 교육과 관심이 필요하다.

Due to the significant size of overseas construction projects, the cost overrun has enormous impacts on the financial status of construction companies. The managers' appropriate perception and identification of key risk factors in the construction phase notably affect the performance of projects. However, the actual impacts of risk factors and local manager' s perception of them could be deviated. For this reason, we aim to compare the performance of actual cases and general opinions of responsible practitioners in terms of risk factors relevant to cost overruns in order to present a practical strategy for risk management. Firstly, factors classified from literature review were used to simulate 290 cost overruns data sets from 20 cases by introducing Monte-Carlo Simulation and were ranked by standardized coefficients through multiple regression analysis. Secondly, a survey was conducted against 42 local managers to rank their perception of impact on cost overrun with identical factors by using Stepwise Weight Assessment Ratio Analysis (SWARA). Comparison results show that conflicts such as 'conflict with subcontractors' and 'conflict with the local community' have caused excessive cost overrun. However, managers' perception of these as less significant than the actual influences and consider other risks such as 'material price fluctuation' and 'construction quality errors', as relatively serious. Therefore, education for local managers on conflict risks needs to be presented.

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