Rockfall Hazard Zoning for Land Use Planning

摘要: Although rock instabilities constitute a threat to human lives and settlements all over the world, methodologies for assessing zoning rockfall hazards urban development planning are far from being standardised. After presentation of general background classification existing approaches, report discusses uncertainties difficulties which emerge when elaborating hazard maps. It is then underlined how national guidelines condition implications on land use planning. Finally, new procedure introduced. Starting 2D or 3D trajectory modelling results, it estimates level based rigorous combination energy return period (according strict definition at international level).