Propose of Architecture Design for Early Warning System with Space and Terrestrial Infrastructure

Abstract

The purpose of this research is to design the architecture of an early warning system with Global Navigation Satellite System (GNSS) and terrestrial infrastructure for improving coverage of disaster information dissemination. In the proposed architecture, necessary segments and information flow are identified to introduce an early warning system to target areas which lack public alert distribution. It can be adapted worldwide by combining GNSS satellite and terrestrial infrastructure. At the beginning of a disaster, information will be sent from the agency via GNSS to widely used terrestrial infrastructure, such as sirens and public vehicles, thus allowing users to receive disaster information even when the ground network has been damaged. The effectiveness of the proposed architecture is examined in terms of redundancy, interoperability, and multi-hazard response by Geographic Information System (GIS) simulation using an open-source format data of public bus in a coastal area of Japan. Results show that the coverage of information dissemination is improved. Thus, the proposed architecture can be adapted to target areas as an early warning system.