A Survey on the Audible Quality of Outdoor Public Address Speakers for the Disaster Reduction Broadcasting System in the Central Area of Ishinomaki City

Shosuke SATO  Masaharu NAKAGAWA  Masahiro IWASAKI  Fumihiko IMAMURA  

IEICE TRANSACTIONS on Fundamentals of Electronics, Communications and Computer Sciences   Vol.E98-A   No.8   pp.1671-1673
Publication Date: 2015/08/01
Online ISSN: 1745-1337
DOI: 10.1587/transfun.E98.A.1671
Type of Manuscript: Special Section LETTER (Special Section on Information and Communication Systems for Safe and Secure Life)
outdoor public address speaker,  disaster reduction,  broadcasting system,  questionnaire survey,  audible quality,  

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In the case of a disaster such as an earthquake or a tsunami, the city, town, and village administration usually issues an evacuation advisory and other information through the Outdoor Public Address Speakers for the disaster reduction broadcasting system covering its area of jurisdiction. However, in areas those have previous experience of a disaster, people frequently voice the lack of audibility of the disaster reduction broadcast. In this research, we conducted a questionnaire survey on the residents in the central area of Ishinomaki City, Miyagi Prefecture, who are the victims of the Great East Japan Earthquake Disaster, on the audible quality of outdoor public address (PA) speakers of the disaster reduction broadcasting system so as to understand the current state of such broadcasts and to propose ideal methods of sending and receiving information at the time of a future disaster.