Implementation of a Scalable Interactive Visualization Environment to Support Information Sharing and Decision-Making in Megadisasters

Abstract

In this study, we implemented a scalable interactive visualization environment to support information
sharing and decision-making at the headquarters of an emergency management department using a
large, high-definition, touch display. The interactive information-sharing system visualizes various
contents transmitted from the Web-based information transmission system on the large, highdefinition,
touch display. The Web-based information transmission system enables information sharing
on the large, high-definition, touch display by transmitting various contents to theWeb server. To
evaluate the effectiveness of the interactive information-sharing system, we conducted a survey, including
12 local government employees from the disaster prevention division and 101 local residents,
who were asked to evaluate the system for operability, functionality, effectiveness, and relevance.
The results of the survey indicate the subjects’ overwhelmingly positive response to the system for
all four measures.