Development of Tsunami Fragility Functions for Ground-Level Roads
Yoshihisa Maruyama† and Osamu Itagaki
Department of Urban Environment Systems, Chiba University
1-33 Yayoi-cho, Inage-ku, Chiba 263-8522, Japan
In exploring the relationship between ground-level road damage ratios and tsunami inundation depths following the 2011 Pacific Coast Tohoku earthquake in Japan, we focused on road damage components, excluding elevated roads, bridges, and tunnels. The damage ratio is defined as the number of damage incidents per kilometer. We used the damage dataset compiled by the Japanese Ministry of Land, Infrastructure and Transport. We propose four fragility function zones for ground-level roads based on differences in topographical features. We studied these zones based on numerical simulation results of tsunami propagation.
-  The 2011 Tohoku Earthquake Tsunami Joint Survey Group, “Nationwide field survey of the 2011 off the Pacific Coast of Tohoku Earthquake tsunami,” J. of Japan Society of Civil Engineers, Series B2, Vol.67, No.1, pp. 63-66, 2011.
-  K. Satake (Ed.), “Tsunamis – Case studies and recent developments –,” Springer, 2005.
-  Cabinet Office, http://www.bousai.go.jp/jishin/nankai/model/pdf/chukan_matome.pdf [accessed Aug. 10, 2016, in Japanese]
-  Ministry of Land, Infrastructure and Transport, http://fukkou.csis.u-tokyo.ac.jp/ [accessed Aug. 10, 2016, in Japanese]
-  Mitsui Zosen Systems Research Inc., http://www.msr.co.jp/mapinfo/dat/map/tci_douro.html [accessed Aug. 10, 2016, in Japanese]
-  T. Nakamura and G. Shoji, “Clarification of tsunami waveforms acting on a bridge structure subjected to the 2011 off the Pacific Coast of Tohoku earthquake tsunami,” J. of Japan Society of Civil Engineers, Series A1, Vol.70, No.4, pp. I_210-I_218, 2014 (in Japanese).
-  H. Aoi, http://d.hatena.ne.jp/meiji-kenchikushi/2001110/p1 [accessed Aug. 10, 2016, in Japanese]
-  Y. Yamaguchi, “Tsunami and Village,” Miyaishoten, 2011 (in Japanese).
-  S. Koshimura, F. Imamura, and N. Shuto, “Charactaristics of on-slope tsunami propagation and the accuracy of the numerical model,” Tsunami Research at the End of a Critical Decade, pp. 163-177, 2001.
-  S. Koshimura, Y. Namegaya, and H. Yanagisawa, “Tsunami Fragility – A New Measure to Identify Tsunami Damage –” J. of Disaster Research, Vol.4, No.6, pp. 479-488, 2009.
-  F. Imamura, S. Koshimura, Y. Mabuchi, T. Oie and K. Okada, http://www.tsunami.civil.tohoku.ac.jp/hokusai3/J/events/tohoku_2011/model/dcrc_ver1.2.pdf [accessed Aug. 10, 2016, in Japanese]
-  H. Matsutomi and N. Shuto, “Tsunami inundation depth, tsunami velocity and the related damage of houses,” Procs. of the Coastal Engineering, Japan Society of Civil Engineers, Vol.41, pp. 246-250, 1994 (in Japanese).
-  P. J. Lynett, “Precise Prediction of Coastal and Overland Flow Dynamics: A Grand Challenge or a Fool’s Errand,” J. of Disaster Research, Vol.11, No.4, pp. 615-623, 2016.
This article is published under a Creative Commons Attribution-NoDerivatives 4.0 International License.