Linear entity at the origin of the risk of the PPRN field movements of the valley of the Clain department of Vienna

The origin of the risk characterises the real world entity which, by its presence, represents a potential risk. This origin may be characterised by a name and, in some cases, a geographical object localising the actual entity causing the risk. The location of the entity and knowledge of the hazardous phenomenon are used to define the risk pools, the risk areas that underpin the RPP.
For PPRNs, this entity may, for example, correspond to a stream, a geologically unstable area.

风险源指代一类现实世界实体，该实体的存在即构成潜在风险。该风险源可通过名称进行标识，在部分场景下还可通过地理对象定位引发风险的实际实体。借助该实体的位置信息与危险现象的相关知识，可定义风险池（risk pools）——即支撑RPP的风险区域。针对PPRN而言，该实体例如可对应为溪流、地质不稳定区域。