DDT 91 — The uncertainties of SMCA’s technologiocal risk prevention plan (PPRT).

SMCA’s PPRT was approved on 22 June 2011. The hazard map is the result of the study of hazards, the objective of which is to assess the intensity of each hazard at any point in the study area. The allocation of a hazard level at a given point in the territory takes into account the probability of occurrence of the dangerous phenomenon and its degree of intensity. For PPRTs the hazard levels are determined effect by effect on maps by type of effect and overall on an aggregated level on a synthesis map. All hazard areas shown on the hazard map are included.SMCA的PPRT（PPRT）于2011年6月22日获得批准。灾害地图（hazard map）系灾害研究的成果，其核心研究目标为评估研究区域内任意点位处各类灾害的强度。在研究区域内给定点位划定灾害等级时，需综合考量该危险现象的发生概率及其强度等级。针对PPRT，需按效应类型在对应地图上逐效应确定灾害等级，并在综合地图（synthesis map）上以聚合层级开展整体划定。本次灾害地图中展示的全部灾害区域均被纳入评估范畴。