Vol.5 No.2 2012

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Research paper : Information sharing platform to assist rescue activities in huge disasters (I. Noda)−121−Synthesiology - English edition Vol.5 No.2 (2012) The characteristic of this experiment is that the linkages of over 10 information systems was accomplished in three days, as shown in Fig. 7. In general, time is required for system linkages for matching the functions and adjusting the protocols, and particularly, many steps are required when separately linking designed and implemented systems. On the other hand, in the proposed platform, the linkages were limited to only through the data on DaRuMa, and the protocol was a simple database protocol MISP. The changes to the systems were minimized to the modification to adapt for MISP. As a result, the system integration done in a short time became possible since the connection test between the individual systems and DaRuMa was simple.This experiment was done as part of the disaster prevention drill of the city hall, and was carried out by the disaster prevention staff of the city using a realistic disaster scenario. Although the evaluation of such systems is difficult, we obtained the evaluation from the personnel who participated in the drill that the disaster response could be done accurately by unifying the information through system linkage.[13] Note 4) From this point and the little time required for system linkage, we can say that the effectiveness of the platform design philosophy was demonstrated.4.2 Demonstration experiment in Toyohashi CitySeveral information systems for earthquakes were integrated with DaRuMa mediation at Toyohashi City, Aichi Prefecture on November 12, 2006 (Fig. 8). In this experiment, the voluminous information gathered from the citizens who gathered at the evacuation shelters were organized and integrated using DaRuMa. Based on this information, predictions of fire spread and traffic jams and the search of evacuation routes were done, and attempts were made to provide useful information to ensure smooth disaster response actions.[14][15] The citizens who arrived at the refuges reported the damages they saw when they were evacuating, and the accuracy of damage projections and disaster measures was increased by reflecting such information in the simulations. At the same time, another objective was to raise the citizens’ consciousness for disaster prevention and their sense of involvement by visually showing that such citizens’ information collection activities help the disaster measures.The main focus of the proposed platform in this experiment was the simulation linkages (Fig. 9). In multiple simulation linkages, careful adjustment of dependent relations of the boundary conditions was necessary to connect the DaRuMaRoad collapseand blockageinformationfrom citizens’reportSafe evacuation routesFire spread regionsTrafficjamsDisplayFire spread, traffic, and evacuation simulationReports by citizens at the refugeTraffic simulation systemEvacuation simulation systemFire spread simulation systemRoad jam prediction Evacuation routesFire spread predictionsInformation sharing databaseSimulation resultsFire informationFire informationRoad damage informationRoad damage informationLevel of danger for roads by firesEvacuation condition settingRoad damage informationEvacuation routeViewer for various informationHeadquarter systemDisaster information input systemTerminal for collecting information of disaster sites(b)With road damage information(a)No road damage informationRoad blockageVehicleRoad blockageVehicleFig. 8 System configuration for Toyohashi City demonstration experimentFig. 9 System configuration for Toyohashi City demonstration experimentFig. 10 Change in traffic simulation results with absence/presence of road damage information (around Takashiguchi, Toyohashi)

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