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Title |
Determination of the Management Level Considering Risk and Criticality of Bridges
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Authors |
이용준(Yong-Jun Lee) ; 선종완(Jong-Wan Sun) ; 임종권(Jong-Kwon Lim) ; 박경훈(Kyung-Hoon Park) |
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DOI |
https://doi.org/10.11112/jksmi.2024.28.6.1 |
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Keywords |
교량; 위험도; 중요도; 리스크 매트릭스; 관리수준 Bridge; Risk; Criticality; Risk Matrix; Management Level |
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Abstract |
An Internet of Things (IoT)-based monitoring system is being constructed with the objective of facilitating rational maintenance decisions and ensuring the safety of domestic bridges that are experiencing continuous aging. In the context of a large number of total managed bridges, it is essential to undertake a rational evaluation of those that require a high level of management in order to select appropriate measurement targets. In order to achieve this objective, a methodology was devised to assess the risk level of the all bridges, taking into account a range of influencing factors, then employed to determine the relative priority of bridges requiring measurement. A total of more than 8,000 bridges were evaluated in comprehensive management levels (CML) 1 to 5 based on risk and criticality, and 1,933 bridges were selected as CML 4 and 5 bridges requiring higher management levels. A statistical analysis of actual bridge deterioration, damage, and damage cases, as well as CML, revealed that the selected bridges were older, more heavily trafficked, and had lower safety ratings on average than other bridges. It is believed that the relative risk and criticality of all bridges were appropriately considered and selected, and that the proposed bridge risk assessment method will prove useful for various maintenance decision-making problems of facilities in the future.
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