Wildland Urban interface area defined as the core WUI community plus a 1/4 mile wide zone around it. The zone may be narrower, depending on topography and the presence of natural barriers to fire spread
Natural and Environmental Disaster Information Exchange System European Commission NEDIES, Fire Management Glossary (Nat Park Service - US Department of the Interior), European Commission, Directorate General Joint Research Centre DG JRC, Institute for the Protection and Security of the Citizen (IPSC), Varese, Italy. http://www.blm.gov/pgdata/etc/medialib/blm/mt/blm_ programs/fire/lfo.Par.98763.File.dat/Glossary.pdf, (NEDIES- For Fr - Brit) {157}