豪雪都市の除排雪システムの経済性評価　第２報　流雪溝の費用便益計算

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タイトル別名
  • Economic evaluation of snow-removal systems in an urban area with heavy snowfall. Part 2. Benefit-cost calculations of snow-removing channels.
  • ゴウセツ トシ ノ ジョハイセツ システム ノ ケイザイセイ ヒョウカ 2 リ
  • Part 2 Benefit-cost calculations of snow-removing channels
  • 第2報 流雪溝の費用便益計算

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To establish an economic evaluation method of snow-removal systems, this paper dealt with the cost-effectiveness of snow-removing channels in calculating ratios of benefits by reduction in snow damage to snow-removal costs (B/C ratios). The snow-removal area for cost evaluation includes a road, a sidewalk, and a private area around the channel. The calculation was applied to the 1350.7-metre long snow-removing channel in Nagaoka-city. The calculated B/C ratios of the channel are 1.75 for a heavy snow with a 10-year mean recurrence interval, 1.11 for an average snow with a g-year recurrence, and 0.75 for a light snow with a 10-year recurrence. Consequently, it is concluded that the snow-removing channel is economically effective when the annual snowfall is heavier than average. From a comparison of cost-effectiveness of the channel and snow-melting water pipes, it showed that the channel gave higher B/C ratios when the channel was installed along a road in a densely populated district.

収録刊行物

  • 雪氷

    雪氷 58 (2), 117-123, 1996

    公益社団法人 日本雪氷学会

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