Abstract
A great deal of effort has been made on the dissemination of the disaster warning to inhabitants. The following are a few notable examples: the route that does not distort information should be used; the media by which people can hear the warning correctly should be allocated; and then, many people can receive the understandable messages. Added to these, we must draw attention to the point whether a decision-maker obtains information needed. It is the result of the observation, however, that three different decision units in the disaster warning system are only connected mechanically. Even whichever unit has not acquired the core information for a judgement therefore. Instead, the information needed for a decision is collected by utilizing a neighborhood network.Besides this, some temporal networks appear in the disaster processes to solve a problem confronted, to mobilize resources, and to coordinate among organizations. Those can be regarded as the function that supplements the damages of the existing system.
