Water distribution network reliability

The dataset originates from an analysis of the long-term records of failures of a water distribution network (WDN) which provides the water supply in a town of about 30 000 inhabitants. The town is situated in Central Europe and covers approximately 24 km2. The failure records available covered the period from 2000 to 2016.
The information available are not directly about WDN failures, but only about the repairs performed, accessible in the form of an aggregate record which included the number of repairs per calendar month. The dataset is based on the simplified assumption that the number of recorded repairs equals the number of failures which occurred during a given month. Information on the specific times at which individual failures occurred are not available. The numbers of failures recorded in this dataset are derived from the numbers of repairs performed. These repairs involved not only pipe breaks, but also all cases when the relevant WDN lost its ability to perform as required, e.g. pump failures and failures occurring when operating stop valves, water flow meters and other WDN parts.

本数据集源自对某配水网络（Water Distribution Network, WDN）长期故障记录的分析，该网络为一座约3万人口的城镇提供供水服务。该城镇位于中欧地区，总面积约24平方千米。可用的故障记录覆盖2000年至2016年的时段。
本次可用的信息并非直接指向配水网络的故障本身，仅涵盖已实施的维修作业相关数据，以聚合统计记录的形式留存，其中包含每个自然月的维修总次数。本数据集基于一项简化假设：即记录的维修次数等于对应自然月内实际发生的故障次数。目前无法获取单起故障发生的具体时间信息。本数据集记录的故障次数均由已实施的维修次数推导得出。此类维修不仅涵盖管道破裂场景，还包含所有导致相关配水网络无法按要求履行运行职能的故障情形，例如水泵故障、截止阀、水流流量计及其他配水网络部件运行时发生的故障。