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However, it is\nhard to understand the seriousness of each utility’s path-dependent issues and their countermeasures\nfrom a simple statistic such as nationwide average. Thus, this paper investigates the situation\nof dilapidating water pipes and possible measures to diminish their effects. In this study, I\nfocus on the supply structure of drinking water suppliers in Osaka City, Sakai City and Izumi\nCity, as well as neighboring cities, as well as Osaka Prefecture. Results show that Osaka City, the\nonly water supplier in Osaka Prefecture that gets 100% of its water from its own water resource,\nowns a critically high share of old pipes (those over 40 legal durable years), in total pipes and in\nlength. The city’s share is higher than both the nationwide and Kinki region-wide averages, and\nraises the prefectural average for Osaka.\nIn contrast, the shares of old pipes of other water suppliers such as Sakai City are not high on\naverage. However, since they rely on Osaka Prefecture’s bulk water supplier for their water,\nwhose share of old pipes is even higher than that of Osaka City, the situation could actually be\nworse than seen from the numbers. For example, Izumi City, which is still absolutely free of old\npipes, purchases its water from Osaka Prefecture and the Senboku Water Supply Authority,\nwhose water pipes can also be classified as old. Therefore, problems regarding the water supply\nof neighboring suppliers within a single region differ in their seriousness and possible policies to\naddress them. 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大阪の上水道供給問題 -府・市レベルの上水道供給構造と水道管老朽化ー
https://stars.repo.nii.ac.jp/records/2000408
https://stars.repo.nii.ac.jp/records/20004087670eae3-c396-4e77-8e26-d7d1a68cb73d
名前 / ファイル | ライセンス | アクション |
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01_矢根真二.pdf (395 KB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||||
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公開日 | 2023-08-18 | |||||||
タイトル | ||||||||
言語 | ja | |||||||
タイトル | 大阪の上水道供給問題 -府・市レベルの上水道供給構造と水道管老朽化ー | |||||||
タイトル | ||||||||
言語 | en | |||||||
タイトル | Issues with Drinking Water Supplies in Osaka The Supply Structure of Drinking Water and Dilapidated Water Pipes at the Prefectural and City Levels | |||||||
言語 | ||||||||
言語 | jpn | |||||||
キーワード | ||||||||
言語 | ja | |||||||
主題 | 上水道の供給構造, 水道管の老朽化, 大阪府用水事業, 大阪市給水事業, 和泉市給水事業 | |||||||
資源タイプ | ||||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||||
資源タイプ | departmental bulletin paper | |||||||
著者 |
矢根真二
× 矢根真二
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著者(英) | ||||||||
姓名 | YANE Shinji | |||||||
言語 | en | |||||||
抄録 | ||||||||
内容記述タイプ | Abstract | |||||||
内容記述 | Data on Japan clearly show that it lags behind in addressing the decrepit condition of municipal drinking water facilities and improving earthquake resistance of many structures. However, it is hard to understand the seriousness of each utility’s path-dependent issues and their countermeasures from a simple statistic such as nationwide average. Thus, this paper investigates the situation of dilapidating water pipes and possible measures to diminish their effects. In this study, I focus on the supply structure of drinking water suppliers in Osaka City, Sakai City and Izumi City, as well as neighboring cities, as well as Osaka Prefecture. Results show that Osaka City, the only water supplier in Osaka Prefecture that gets 100% of its water from its own water resource, owns a critically high share of old pipes (those over 40 legal durable years), in total pipes and in length. The city’s share is higher than both the nationwide and Kinki region-wide averages, and raises the prefectural average for Osaka. In contrast, the shares of old pipes of other water suppliers such as Sakai City are not high on average. However, since they rely on Osaka Prefecture’s bulk water supplier for their water, whose share of old pipes is even higher than that of Osaka City, the situation could actually be worse than seen from the numbers. For example, Izumi City, which is still absolutely free of old pipes, purchases its water from Osaka Prefecture and the Senboku Water Supply Authority, whose water pipes can also be classified as old. Therefore, problems regarding the water supply of neighboring suppliers within a single region differ in their seriousness and possible policies to address them. Such a peculiarly complex situation stems from an overabundance of small-scale utilities created by the traditional Japanese regulatory regime for drinking water supplies. |
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言語 | en | |||||||
書誌情報 |
ja : 桃山学院大学総合研究所紀要 巻 41, 号 2 |
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出版者 | ||||||||
言語 | ja | |||||||
出版者 | 桃山学院大学総合研究所 | |||||||
ISSN | ||||||||
収録物識別子タイプ | ISSN | |||||||
収録物識別子 | 1346048X | |||||||
書誌レコードID | ||||||||
収録物識別子タイプ | NCID | |||||||
収録物識別子 | AA11337282 |