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5. Conclusion
Techniques for characterizing natural gravity hazards are currently undergoing profound change. The availability of highly accurate topographical data (LIDAR in particular), and the development of new modeling software, often based on geographic information systems, are profoundly changing hazard characterization methods. Now largely based on scientific and mathematical quantification, these methods offer more exhaustive analysis, greater precision and a certain degree of reproducibility (at least on paper). They cannot, however, do without prior field expertise and, above all, validation of results by systematic on-site inspection. No model can guarantee perfect reproduction of the extreme complexity of the physical phenomena that drive gravity.
In terms of their regulatory transcription in PPRNs, these new methods should bring greater transparency and precision,...
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Conclusion
Bibliography
Websites
• AGS – Australian Geomechanics Society
http://australiangeomechanics.org
• IAEG – International Association for Engineering Geology...
• ISRM – International Society for Rock Mechanics...
Standards
- Avalanche protection equipment – Snow fence – Design specifications - NF P95-305 - Décembre 1992
Regulations
• Articles L. 562-1 to L. 562-9 of the French Environment Code, which set out the framework and methodology for drawing up natural risk prevention plans.
• Article R. 126-1 of the Code de l'Urbanisme (article 404 of law no. 87-565 of July 22, 1987 and article 16-1 of law no. 95-101 of February 2, 1995), which requires the approved PPR to be appended to the PLU or POS, where they exist.
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