Identification of the municipalities through which the ethylene pipeline passes.

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

Thematic coverage of the municipalities of Catalonia in which the obligation or recommendation of the municipality to draw up the Municipal Action Plan (PAM) for chemical risk in the transport of dangerous goods by road and rail is represented, as well as the current status of the plan

For the purposes of Decree 30/2015, the areas affected by the risk of forest fires are defined as the 500 m strip surrounding any forest mass with a surface area of 5 ha or more. This delimitation is used to determine whether a campsite facility falls within the scope of the Decree. If so, it is required to have a self-protection plan.

Coverage of the railway network affected by the transport of dangerous goods, representing the level of danger of each section in relation to the transport of dangerous goods. The danger level takes into account, apart from the flow of dangerous goods, the type of substances transported. The average data on the transport of dangerous goods from the last four years has been used with the aim of obtaining more stable data over time and minimizing the current variations derived from the socioeconomic context of each specific year.

Thematic coverage of the municipalities of Catalonia in which the obligation or recommendation of the municipality to prepare the Municipal Action Plan (PAM) due to wind risk is represented, as well as the current status of the plan.

This represents the alert coverage of sirens installed on dams. Some approximations have been made by generating buffers with a predefined coverage radius based on the technical specifications of the sirens, while others have employed acoustic propagation models that incorporate factors such as attenuation, sound dispersion, and the influence of topography.

It represents the aproximate route of the ethylene pipelines.

Territorial delimitation of the reference territorial areas used in civil protection planning and management in Catalonia.

Polygons which define the range of sound corresponding to the alarms. In accordance with each type of alarm, the sound radius covered can be 800 or 400 metres away from the siren, or maybe unidirectional, covering a distance of 700 m with a 70º opening.