It represents the areas of avalanche observation by the population, identified from a population survey.

Identification of the municipalities through which the pipeline passes.

Subzones within zone I or zone of urgent protection measures. It corresponds to the geographic area affected by the passage of the radioactive cloud within a 10 km radius circle around the nuclear power plant (with the nuclear power plant at its center). In the area of ​​zone I, the sector of preferential attention and the zone of preferential attention are also defined.

Municipalities that within their territory have a nuclear installation, different from a nuclear power plant. Municipalities with large ports or airports with a significant flow of radioactive goods are also included.

The ZIF (defenceless zone) is defined as the minimum security zone necessary to guarantee the viability of self-protection of vulnerable elements in the context of an accident in the transport of dangerous goods. The extension of this zone is conditioned by the necessary response time and the intensity of the effects of foreseeable accidents. The distances of the ZIF for the scenarios of long-range toxic cloud, short-range toxic cloud, serious explosion, flammable cloud and puddle fire are established in "The Technical Instruction of the DGPC regarding the preparation of reports on the conditions minimum requirements that new urban developments must comply with to be located within the identified chemical risk zones due to the transport of dangerous goods by road and rail" (ITMMPP).

It indicates whether or not the municipality exceeds any of the thresholds established as a criterion to determine whether it is obliged or recommended to draw up the Municipal Action Plan for seismic emergencies. In order to establish the obligation to draw up the action manual for municipal seismic emergencies, there are two criteria: exceeding the intensity threshold in this case greater than or equal to VII, or for exceeding reference damage, in this case case more than 50 uninhabitable buildings or more than 10% of the total uninhabitable buildings in the municipality. Municipalities that appear in white mean that they do not exceed these thresholds.

Seismic intensity (MSK scale) that can be expected for a return period of 500 years

It represents the areas susceptible to triggering avalanches and their extent, based on geomorphological criteria and the French model "Carte de Localisation des Phénomènes d'Avalanche" (CLPA).

Location of rail network tunnels included within the scope of the PROCICAT action plan for emergencies in the rail passenger transport.

Delimitation of the perimeter of industrial facilities included in Plaseqcat which handle dangerous substances.