Dynamic Characteristics of a Safety System Model and their Implications on Safety Policy in Korea

The effect of damping and elastic nature on the control performance of a safety budget-industrial accident rate model in Korea was examined first. The effectiveness of such dynamic model in establishing safety policies is shown with a simple proportional-integral (PI) feedback control mechanism. Control performance was, for example, evaluated and proved to be effective to prevent and reduce the industrial accidents. Implications in feedback control of a safety system model suggested on optimization of safety policies are also explored. Without proper restructuring of the safety system, it would not be possible to hit the target industrial accident rate. Even if the target rate is met, the amount of industrial accident prevention fund (IAPF) required to reduce the industrial accident rate to the target level would be far beyond the social consensus. Cost-benefit analysis, however, indicates that benefit arising from the decrease in number of death in industrial accident with the efficient safety system model would sufficiently make up for the cost required.