DEVELOPMENT OF REAL-TIME DAMAGE ESTIMATION SYSTEM FOR EXPRESSWAY USING EARTHQUAKE EARLY WARNING

Abstract

 We develop a decision-making support system, so that the expressway company can take initial response quickly to earthquake disasters. We first developed a prototype system, which estimates the distribution of ground motion on the expressway covered, using the source parameters of the Earthquake Early Warning (EEW) and the empirical attenuation relations, and which maps the results on the geographical information system, Cyberjapan. The system was designed to perform adequately for major earthquakes, estimating the damages by involving ground motion waveforms as well as calculating by seismic parameters of EEW.