Application of multi-attribute decision theory to the underground siting of nuclear power plants

A study of the economic feasibility, effectiveness, and necessity for underground construction of nuclear power plants is described. A key step in the overall process is for the decision analyst to determine the preferences of the various interested parties for the multitude of potential site/construction mode possibilities. Considering the number and complexity of the attributes, it was decided to apply multi-attribute decision theory, a formal mathematical method, to the problem. The first step is to determine which attributes are deemed important by the interested parties (or decision-makers). This was accomplished in a set of interviews with selected individuals who represented a variety of viewpoints. The highest ranked attribute was that of public safety, although different measures of the attribute were preferred by different persons. As the problem was posed to the interviewees, the rating of the attribute would depend on the calculated consequences of a serious accident as well as the individual's own perception of the likelihood of the accident and the value of the calculated consequences. Cost of electricity to the consumer was generally the second most important factor listed by the interested parties. Other attributes were listed in differing, but lesser rank by each person. The next step is to take the engineering results back to the interested parties, and through a formal interrogation process determine their numerical value judgements for the various attributes, including the trade-offs between attributes. Unfortunately, the time for conduct of the work ran out before the second round of interviews could be accomplished