ABSTRACT
Risk assessment is a widely used tool for identifying and estimating technological risks, such as in pipeline facilities. It is traditionally based on the survey of probabilities related to human fatalities (Jo & Ahn 2005). However, accidents recorded around the world indicate that, due to the complexity of their consequences, the environmental and financial dimensions of accident impacts must also be considered, in order to avoid incomplete and inadequate approaches to pipeline risk assessment. These arise from the need to reconcile the concerns of society, the State and gas companies regarding the safe operation of pipelines.
