Abstract
There are involved a number of general technical problems in the rescue simulation project for mitigation of large scale disasters. First, we overview how the rescue simulation will be meaningful and valuable in conjunction with real world disasters. Then we clarify the technical problems to be solved to develop a really usable, state-of-the-art rescue simulation system. But more important point is that such a rescue simulation system should be so constructed not very special with respect to the ordinary daily works of local government offices. All of these are challenging problems, so that we have in mind a feasible road map to attack them in a proper order to be able to have a good outcome.