Quake Land Zone (OpenData)

This entity describes Canterbury Earthquake Recovery Authoritys (CERA) broad classification (eg, Red Zone, Orange Zone, etc) of earthquake land damage within Christchurch, indicating what stage the land assessment process is at and if concluded, whether or not it will be possible to rebuild on the land. Areas currently zoned Orange will progressively be reclassified as either Red or Green. Areas zoned Green are further classified into technical categories - refer QuakeFoundationDesign entity. Data Source is Tonkin & Taylor who supply updates as a WFS feed on behalf of CERA. The data is 'maintained' inhouse via a bulk archive of existing records from QuakeLandZone then running of an app to repopulate with the latest CERA update. This feature will be intersected with stRatingUnitCentroid for the purposes of Spatial Significance Comment generation and QuakeLandZone records MUST therefore be disassociated BEFORE being archived. It is spatially abstracted to an area. Entity type Concept.

本实体描述了坎特伯雷地震恢复管理局（Canterbury Earthquake Recovery Authority, CERA）对克赖斯特彻奇境内地震损毁土地的大类分区规则（如红区（Red Zone）、橙区（Orange Zone）等），用于标识土地评估流程所处阶段，以及评估完成后该地块是否具备重建条件。当前被划分为橙区的区域将逐步被重新归类为红区或绿区。绿区地块将进一步细分至技术类别，相关细节详见地震基础设计（QuakeFoundationDesign）实体。本数据集的数据源为汤金泰勒（Tonkin & Taylor），该机构受CERA委托，以Web要素服务（Web Feature Service, WFS）馈送的形式提供数据更新。本数据的内部“维护”流程如下：首先从地震土地分区（QuakeLandZone）数据集内批量归档现有记录，随后运行应用程序，以最新的CERA更新内容重新填充数据集。为生成空间显著性注释（Spatial Significance Comment），需将本要素与评级单元质心（stRatingUnitCentroid）进行空间相交运算，因此地震土地分区（QuakeLandZone）的记录必须在归档前解除关联。本要素以区域为单位进行空间抽象，实体类型为概念（Concept）。