For example, there may be long segments in the country where the pipeline passes through farm land, a short segment where the pipeline crosses a river, a short segment in a city through residential areas, and a short segment through industrial areas. An earlier assessment has determined that the risk outside 800 meters is very small. Data on pipeline failures under various situations is collected. The industry keeps such records. Various severities of pipeline ruptures will be considered and the inventory by distance from the pipe line will be used to consider different exposures.
Some scientific data is available to assess different impacts at various distances.
The historical data on ruptures will be used to determine the frequency of the various severities of rupture. This level of risk was considered unacceptable. These 2 cases were evaluated. This case is the analysis of the risks and consequences of the failure of a rail in a railway system. The risk to be analysed is the number of failures, hours of train delays, number of derailments and the cost to manage the rail failures.