An Outline of the Flood Disasters in the Seadai River in July 2006 and the Review of Flood Controrl by Dam Operation

Komatsu, Toshimitsu; Sugio, Satoru; Hikida, Makoto; Ohmoto, Terunori; Oshikawa, Hideo; Hashimoto, Akihiro

doi:10.2208/prohe.52.805

Cited by 2 publications

(1 citation statement)

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“…The fighting against flood disasters can be traced back to at least 2000 years ago when the Dujiangyan Irrigation System was created for flood control, irrigation water supply, and river channel siltation prevention (Cao et al, 2010). Since ancient times, many methods and techniques have been developed for flood control, including the constructions of floodwater diversion channels, levees, dams, reservoirs, and retention ponds to hold extra water during floods (Komatsu et al, 2008;Kundzewicza et al, 2018;Ogie et al, 2020). In addition to these structural measures, non-structural measures such as flood hazard mapping, early warning systems, and land use planning have been studied extensively in recent decades (Kundzewicz, 2002;Schanze et al, 2008;Dawson et al, 2011;Jamrussri and Toda, 2017;Raffaele De et al, 2020).…”

Section: Introductionmentioning

confidence: 99%

Are Cities Safer Than Before?

Huang

2021

Front. Sustain. Cities

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Cities are built to lead better lives. However, irrational urban development has led in reverse, causing numerous problems. The increase in flood risk in urbanized areas is one of the significant problems. Despite extensive research, numerous engineering projects have been carried out to reduce the risk of flooding, the question “are we safer than before?” remains underexplored. The present work is a case study aimed at providing new evidence of the current state of flood disaster management. It analyzed the relationship between the magnitude of flood and resultant flood fatality and property damage in the target area over a long period of time and found that we are safer now than before in terms of life loss, but not safer than before in terms of flooding impacts on livelihood. Most importantly, it was found that flood risk management in the region continues to be critically dependent on structural measures. Besides, it highlighted a contrast between having a well-developed emergency information delivery system and its ineffectiveness in mobilizing evacuation.

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