使用怀俄明州拉勒米收集的数据， 自来水公司，这项研究发现 直径和管道材料是两个主要因素 与管道破损率相关的因素。在里面 此外，还有一些未知的问题 也影响破损的因素（脆弱性） 费率。经确定，这一弱点是 金属管比PVC管大得多 即使PVC的预期寿命 管子比较短。 作为这项研究的结果，有两个重要的方面 可以得出结论:有可能 确定影响产品质量的主要因素 特定饮用水基础设施的可靠性； 而且，有很多 影响管道破裂的未知因素 费率。本文介绍了可以 用于预测管道破裂率以计算 与之相关的成本和收益 检测技术。 可通过以下方式获得的潜在见解: 系统地组织和分析 饮用水设施的基础设施数据库 将引起公用事业经理的兴趣。 然而，实现这样的组织水平 难度大、挑战性强，需要 一方的奉献和承诺 公用事业员工。包括24个参考文献、表格和图表。

Using data collected by the Laramie, Wyoming, water utility, this research found that pipe diameter and pipe material were two major factors that related to pipe breakage rates. In addition, there were a number of unknown factors (frailties) that also affected breakage rates. It was determined that the frailty was much greater for metallic pipe than for PVC pipe even though the expected life of the PVC pipe was shorter. As a result of this research two important conclusions can be drawn: it is possible to identify the major factors that influence the reliability of a specific drinking water infrastructure; and, there are a number of unidentified factors that affect pipe breakage rates. This article presents models that can be used for predicting pipe break rates to calculate the cost and benefits associated with inspection technology. Potential insights that can be obtained by systematically organizing and analyzing a drinking water utility's infrastructure database will be of interest to utility managers. However, achieving such a level of organization is difficult and challenging, and requires dedication and commitment on the part of the utility staff.Includes 24 references, tables, figures.