Does Road Accelerate Flooding

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  • 道路は氾濫を助長するか
  • ドウロ ワ ハンラン オ ジョチョウ スル カ

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Roads are societal infrastructures and provide links among various urban elements. The existence of road networks alters the landscape spatial pattern. However, few studies were conducted to evaluate the relationship between road patterns and urban flooding characteristics. In this study, a strategic initiative was taken to examine how urban flooding patterns could be affected by roads and to highlight the possibility to use roads to alleviate flood disaster.<BR> It is revealed through case study that the flood front could be accelerated by road and areas confined by roads are more susceptible to flooding. Meanwhile, if roads are designed properly, they could divert flood water to areas where damage is much less severe. The concept is to share flood water in a wide area in a well-planned way so that the total damage could be minimized.

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