Road Centerlines

Road segments representing centerlines of all roadways in Polk County and developed for Next Generation 911. This information is compiled from orthoimagery or other aerial photography sources. This representation of the road centerlines support address geocoding and mapping. It also serves as a source for public works and other agencies that are responsible for the active management of the road network.本数据集涵盖波尔克县（Polk County）所有道路的中心线路段，专为下一代911（Next Generation 911）项目开发。该数据集信息汇编自正射影像（orthoimagery）或其他航空摄影数据源。此类道路中心线数据可支持地址地理编码（address geocoding）与地图制图工作，同时亦可作为公共工程部门及其他负责道路网络动态管理的机构的参考数据源。