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Establishing an operational communication system with high availability and flexibility become the essential tasks and key successful factors while executing the situation broadcasting, message delivering, resource handling, local commanding, manipulating, and status reporting. Without the system the disaster situation can not be monitored, the resource can not be managed properly, the coordination among rescue divisions can not be organized. This phenomenon will impact the rescue commands and policy delivery. Nowadays, the technology makes the rescue systems connected by wireless network. The information technologies such as GIS, GPS, real-time video transmission have been widely adopted in 911 rescue command center. Moreover, the entire rescue organization hierarchy migrates to use the bid data technology to analyze the data to provide rescue management and damage reduction so as to be able to improve the service quality and disaster prevention and rescue momentum. This study uses the Analytic Hierarchy Process, AHP, to analyze the dispatching expert system which equipped with the functions such as reporting the case, registering the case, dispatching, expert consultant and has been launched in 2013 to perform the damage collection, statistic study, and case study. Through the review, the investigation of the frequent problems will be helpful in primary modification, middle-term improvement, and final refinement which can obtain further key factors for future decision. Our study discovers that efficiency of communication and response time are the most important issues and followed by competition power, specification, and budget. Combining the weighting, the ranking order follow the order of system optimization, the development of integrated communication and information, and the location of repeaters. We can witness that users will highly require the efficiency and response time for radio system that can be optimized and refined from the current system to improve coverage and avoid the blind areas to cause the outage of radio communication. User requirements show the design of a smart radio system should consider the implementation model according to the specific difference of users, standard international interface, capability of extension, complete functions of emergency operation, scalability, backup, load adjusting, equipment compatibility, and functional completeness. Disaster prevention and rescue radio system become the core system for disaster prevention, rescue, reduction, and recovery. The tasks of disaster prevention and rescue become more complicated. It is necessary to deploy the technology to coordinate and integrate the tasks. This study will target on the execution and operation problems and come up with the refining suggestion for future disaster prevention and rescue researches for central and local government. Keywords: big data, AHP, radio communication system
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