ABSTRACT

In order to supply quantitative data related to landslide risk to land planners, it is necessary to consider the existing available tools first.

Quantitative Risk Assessment (QRA) is a method of quantifying the degree of risk through a systematic examination of the factors contributing to landslide hazard and affecting the severity of the consequences, as well as the definition of probabilities for the individual factors. The QRA technique was developed, and is now used world-wide, to estimate risks from industrial plants, such as petro-chemical, etc. QRA can provide a framework for assessing the cost-effectiveness of risk mitigation options, formulating risk management strategies and facilitating decision-making on resource allocation to reduce risks posed by different types of landslide hazards.