Tyler Water Hydrants

Water network hydrants. Last update date shows the last time each assest was manipulated in any way. Install update source is how the install date was added into GIS. Last editor should show who the last person to manipulate the assest was. Install date gives an estimation of when each asset was actually installed in the ground, not put into GIS. Update source is the accuracy of each asset in our GIS system, GPS-SURVEY-GRADE is the most accurate form of data we have available本数据集涵盖供水管网消防栓相关数据。最后更新日期字段用于展示每项资产经任何操作的最后时间节点；安装更新来源字段用于说明安装日期录入地理信息系统（Geographic Information System）的具体途径；最后编辑者字段用于展示对该项资产实施最后一次操作的人员身份。安装日期字段用于估算每项资产实际埋地安装的时间，而非其录入地理信息系统的时间；数据更新来源字段用于体现本单位地理信息系统中各项资产的当前数据精度，其中GPS-SURVEY-GRADE是当前可获取的最高精度数据类型。