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Research paper : Information sharing platform to assist rescue activities in huge disasters (I. Noda)−122−Synthesiology - English edition Vol.5 No.2 (2012) simulations. In this example, we did cut-offs to simplify the dependency relation to one-way, to make the linkages easy. While this cut-off policy is inferior in terms of close simulation linkages, there were many occasions where this worked sufficiently in the context of rescue. Also, since it was by database mediation, the computer environments for running multiple simulations did not have to match exactly, and this is important in realizing the case-by-case simulation linkages with various combinations. The operation of the simulation systems was as follows. Fire spread simulation systemThe initial setting was fire information reported from the sites, and the spread projections were done from that information. Evacuation simulation systemSettings such as road damage information, projection of danger to roads by fire using the fire spread simulator, starting point and destination of evacuation, and others were obtained from the information sharing database, to determine the appropriate evacuation routes. Traffic simulation systemThe road damage information and evacuation routes were acquired, and simulation was done under a setting that the traffic was restricted on such roads, to predict the roads where traffic jams and congestions would occur.Figure 10 shows the example of changes in traffic simulation results by the absence/presence of the road damage information. In this example, the difference in the projection of traffic jams is shown when the blocked road information of the main road from upper right to center was reflected in the simulation and when it was not. Each simulation module not only sorts and shifts the conditional information from the information sharing database, but outputs the simulation results to the information sharing database. The results can be checked against the damage information using the system of the disaster management headquarters, and enables use in other simulation modules. The system of this experiment shows that by handling the reports and various simulations as simple data links, the simulations at varying levels could be done easily, including the projections that incorporated the low accuracy information such as the reporting by the general public and simulation projections, as well as the analysis of highly accurate data only.Interviews were conducted to the Toyohashi City Hall personnel after the experiment, as in the demonstration experiment at Mitsuke City. As a result, we obtained the evaluation that “it is important to handle the damage projection, emergency response demand load, and emergency response items at the onset of the event with shared recognition by all participants of the disaster management headquarters or the disaster management meeting,” and “the mechanism proposed in the experiment may be an effective means along with information gathering done by the government organizations.”4.3 Toreta Doro (Passable Road) MapTo make the rescue and support activities in massive disasters as smooth as possible, the road information, particularly of passable roads is important for the rescue teams and relief supply carriers. However, most of the road information provided by the local government and police is information of blocked roads or restricted traffic. Moreover, it is not comprehensive information, and it is difficult for the relief DaRuMaDisplay(GoogleEarth)Noise processingand analysisDrive dataFig. 11 Toreta Doro Map provided for the Chuetsu-oki Earthquake

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