Risk management and analysis tools for construction sites

Abstract

Most of the monitoring tools for managing site safety used by local construction industry do not allow for the different risk levels inherent in the factors contributing to accidents on sites. These tools also do not reveal whether such deficits are critical or non-critical in warranting immediate attention. This study postulates the hypothesis that "unless the critical factors are identified and managed, a site with a high Construction Safety Index Rating may not be safe." Survey questionnaires were conducted to gather information on the construction firms in Singapore to ascertain their opinions on the factors affecting site safety. The respondents were asked to rate the degree of each factor according to the likelihood and severity of accidents into these categories: (a) 'frequent-likely', (b) 'occasional-maybe', (c) 'remote-unlikely', and (1) 'major-fatal', (2) 'moderate-permanent disability', (3) 'minor-temporary disability' respectively. Based on the research findings, the key components influencing the occurrence of accidents in relation to their likelihood and severity are determined. A model was then developed to assist the management to better manage site safety; highlighting unsafe practices basing on the likelihood and severity of accidents. This proposed model is useful as it can help the management to prioritise so that accidents can be eliminated - especially the major-fatal ones whereby precious lives can be saved.