ABSTRACT
This chapter explores the potential of process-based safety performance indicators. An underlying assumption in using process-based safety performance indicators is that these are valid indicators of accident risk. The chapter discusses this issue further in connection with the individual measures. It also distinguishes between performance indicators based on employees' self-reporting of incidents and incidents reported through line management or technical instrument and alarm systems. A high or increasing rate of incidents with high potential (HIPO rate) is an alarm bell, indicating the possibility of an increased risk of large losses. HIPO incidents include those with the potential of resulting in fatalities. Behavioural sampling was developed in the 1950s to overcome some of the problems associated with the LTI rate as a safety performance measure. It applies statistical sampling techniques in observing deviations from accepted safe work practices and conditions. The aim is to prevent losses by reducing the frequency of such deviations.
