Evacuation Zone Census Impact Summary View

Overview This feature service provides a county-level summary of estimated population, households, and structures associated with evacuation zones and evacuation levels in Washington. It supports emergency management and planning workflows by organizing census impact information for operational use in statewide response and preparedness activities. Content Evacuation zone summary with county identification and assigned evacuation level. Impact estimates covering population, households, and structures within the mapped evacuation areas. Area geometry representing the spatial extent of each summarized evacuation zone record. Geographic Coverage The service covers Washington State and is suitable for regional and county emergency planning. Use Cases Supporting emergency operations and evacuation planning. Summarizing census impacts for response coordination. Informing State Emergency Operations Center planning activities.概述：本要素服务（Feature Service）提供华盛顿州范围内与疏散区域（evacuation zone）及疏散等级（evacuation level）相关的县级估算人口、家庭户数及建筑汇总数据。其通过整理普查影响相关信息，可为全州应急响应与备灾行动的业务化应用提供应急管理与规划工作流支撑。 内容：包含以下内容：带有县级标识与指定疏散等级的疏散区域汇总数据；已映射疏散区域内的人口、家庭户数及建筑影响估算值；表征各汇总疏散区域记录空间范围的面几何要素（Area Geometry）。 地理覆盖范围：本服务覆盖华盛顿州全境，适用于区域及县级层面的应急规划工作。 应用场景：支撑应急作业与疏散规划；为应急响应协调汇总普查影响数据；为州应急行动中心的规划活动提供信息支撑。