THESIS ABSTRACT AUTHOR: MOHAMED AU SALEH BU-KHAMSIN TITLE OF THESIS: SAFETY PERFORMANCE MEASUREMENTS: A PC-BASED EVALUATION TOOL FOR INDUSTRIAL CONTRACTORS IN SAUDI ARABIA DATE OF DEGREE: FEBRUARY 1999 This thesis presents a structured and systematic approach that will help the industrial construction contractor in Saudi Arabia to monitor and measure his construction safety performance. The research began with an analysis of the factors which influence the process of safety performance measurement as it is currently practiced in general by the construction industry. This analysis is based on a review of the literature and formal interviews with the contractors’ officials responsible for construction safety. In the second phase, a survey was distributed to 25 Industrial Contractors in the Eastern Province of Saudi Arabia. The intent of the survey was to gather data on those significant factors which influence the safety performance measurement process. The survey consisted of 20 main factors and 85 sub-factors. Quantitative statistical analyses of these data were performed. Then, the main factors and sub-factors were ranked by their level of importance based on the survey results and analysis. In the third phase, a PC-based evaluation tool for determining the safety performance of construction contractor was developed. Data arrived at during the second phase was utilized to build the evaluation tool. The tool uses a dimensional weighting approach for measuring safety performance. When applied m practice, this PC-based tool can provide industrial construction contractors in Saudi Arabia with a valuable device for safety performance measurement and monitoring. Finally, in order to improve the measurements of the construction safety performance, a set of recommendations was made and topics for future research were suggested.