Airports Risk Contours

The risk contours are based on the maximum use of the airport according to the airport decision. The contours indicating the 10-5 and 10-6 site-related risk are shown. First is a chance of once in 100,000 and second a chance of a fatal incident once every million years. Within the 10-5 contour, homes and vulnerable buildings are removed from their destination and new construction is not allowed. In the area between 10-5 and 10-6 contour, new construction is not necessarily allowed. The contours must be reproduced in the zoning plan.本风险等值线（risk contours）依据机场决策确定的机场最大使用工况制定。本次展示了表征10⁻⁵与10⁻⁶量级场址相关风险的等值线：其中10⁻⁵风险对应每10万次发生一次的概率，10⁻⁶风险对应每百万年发生一次致命事故的概率。处于10⁻⁵风险等值线覆盖范围内的住宅及易受损建筑需予以搬迁，且该区域内禁止新建建筑。处于10⁻⁵与10⁻⁶风险等值线之间的区域，新建建筑并非必然获得许可。上述风险等值线须完整复刻至分区规划图纸中。