Abstract
In order to maintain citizen's lifestyle during and after an earthquake disaster, we need to improve and upgrade our water supply network and pipelines. In this paper, in advance of replacing pipeline network, we attempt to quantitatively analyze the superiority of the block distribution system, which is suitable for efficient water supply control and management, and limits damage area in disaster, and compare it to a non-block distribution pipeline network, which uses simple pipeline network models. And using these results and a cost-benefit analysis, we show the benefit derived from the reduction of damage is larger than the cost of replacing aged pipes.
