Abstract
The purpose of this research is to propose an early restoration method for lifeline systems after earthquake disasters. Road networks after earthquake disasters have an uncertain environment, that is, the restoring works are not progressing on schedule. An attempt is made to develop a decision support system of the optimal restoration scheduling by using Improved GA that can treat various uncertainties involved. In order to illustrate the efficiency and applicability of the proposed method, a numerical example is presented to compare with simple GA. It is confirmed that the proposed method can provide more robust solutions that can deal with the variations of seismic environment.
