One-off entity at the origin of the risk of PPRN land movements of the Clain Valley 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.

风险的起源对应着一类现实世界实体，该实体的存在本身便构成潜在风险。该风险源可通过名称进行表征，在部分场景下还可附带用于定位实际致险实体的地理对象。实体的空间位置与危险现象的相关知识，被用于定义支撑RPP的风险池与风险区域。
以PPRNs为例，此类实体可对应溪流、地质不稳定区域等。