Abstract
It is shifting from the design to the limit state design method that uses the allowable stress method in the organization that relates to the design of the structure now. When the performance is designed, the limit state design method is an effective design method. However, there is a limit in a quantitative evaluation of the physical properties of soil materials and the reinforcements that has potential variabilities. Then, to evaluate the performance of the structure that used the soil materials and the reinforcements quantitatively, the reliability analysis was executed in this research. Concretely, the limit state exceedance probability of a standard embankments was calculated by setting the performance rank of the embankments based on the railway standard, deciding the material physical properties and the embankments cross-section shape, and using FORM that was the approximation method. The result was arranged, and the limit state exceedance probability of the embankments in the static loading conditions was presented.