抄録
There is a tendency that the dangerous area of slope failure is increasing cause of the residential land development nearby mountains district part around city. An enormous cost and time are necessary to take construction of countermeasure facilities to every dangerous area of slope failure. Therefore, The establishment of objective priority order of construction plan is needed. In this paper Authors proposed the objective establishment method on priority order of construction by using Data Envelopment Analysis.And Validity of the method is proved engineering instances of the construction.