| Title |
A Risk Assessment Method using Disaster Influence Factors on Construction Project |
| Authors |
Yu, Yong-Sin ; Choi, Jae-Wook ; Kim, Tae-Wan ; Lee, Chansik |
| DOI |
https://doi.org/10.5659/JAIK_PD.2019.35.6.3 |
| Keywords |
Disaster Influence Factor ; Risk Assessment ; Safety Management |
| Abstract |
Current risk assessment methods typically determine accident risks embedded in construction projects by combining severity and frequency; however, they do not reflect the characteristics of construction projects. To solve the problem, this study aims to develop a novel risk assessment method that combines severity, frequency, and disaster influence factors (i.e., weather conditions and worker’s characteristics) for assessing risks of activities occurring on a construction site actually. In this study, a severity was estimated by death against victims, and a frequency was estimated by the victim rate. The frequency was then converted to probability taking disaster influence factors into account. Thus, instead of considering severity and frequency for assessing the original risks (RO), the proposed method uses severity and probability to yield adjusted risks (RA) for each activity. A case study was conducted to determine if the proposed method works as intended in a real setting. The results show that RA is more sensitive to disaster influence factors than RO and, therefore, is able to assess the actual risks reflecting the working environment and conditions of a construction site. This study contributes to risk management of construction projects by offering a risk assessment method that measures a possibility of potential disasters from the probabilistic perspective. This method would help project managers assess accident risks in a more systematic and quantitative manner. |