IA 2.3. Defining recommendations for improving security on WUI at multiple scales



What kind of result is this?

Guidelines & Recommendations

What’s the area addressed?

Ecosystem Conservation and Landscape design
Landscape management in Wildland Urban Interface 

What’s the covered phase?

Prevention and Preparedness

What’s the addressed challenge?

How to increase the fire resistance of wildland urban interfaces 

What value is proposed?

Providing recommendations for the landscaping around the buildings in the WUI and the choice of openings for the buildings to reduce the building vulnerability. Providing guidelines to determine the best allocation of fuel treatment in the rural part of WUI.

Who can use it?

Policymakers and WUI residents

What type of tool is it?


How does it look like?


This tool is…

⊠ a new tool

☐ an improved tool

What are the vision & mission statement?

The work carried out in this I.A. focuses on two aspects of fires at wildland urban interfaces (WUI). On the one hand (ISCI), its objective is to define the best fuel treatment allocation in the rural part. Thanks to the smooth integration between Cell2Fire and decision-making models, the optimum fuel treatment allocation considers different wildfires scenarios and the most likely behaviour of the fire. Because of this, the system will reduce the expected impact of any wildfire on the WUI. The system considers, not just the values-at-risk that aims to protect, but also the trade-offs between fuel treatment emissions and the reduction of emissions caused by it. Finally, the decision model considers ecological values through different constraints that consider, e.g., the cohesion of natural areas.

On the other hand (CNRS), it aims to increase the fire resilience of buildings at WUI. The openings have been identified as the main vulnerable points in the propagation of vegetation fires towards the interior of buildings. By scientifically defining safety distances between ornamental vegetation and these structural elements and by giving recommendations on the materials to be used, the risk of building ignition due to the deterioration of openings can be drastically reduced. The recommendations given in this IA could lead to the definition of a common European regulation for the management of vegetation around buildings in WUI as well as to building recommendations.

When will it be complete?

Early 2025


  • EXPLORII Platform website
  • C. Luciani, V. Tihay-Felicelli, B. Martinent, P.A. Santoni, F. Morandini, T. Barboni, Influence of fuel moisture content on the burning of cistus shrubs exposed to a low-intensity fire, Fire Safety Journal, Volume 146, 2024, 104168, ISSN 0379-7112. Read here.

This IA is implemented in the Living Lab(s)…

Catalonia, Canary Islands, Chile, Portugal

Simulation of a fire reaching the pilot zone of Chile, used to determine the recommendations for the landscaping around buildings in WUI. Courtesy of Virginie Felicelli-Tihay


Virginie Felicelli-Tihay

Andrés Weintraub