2019 Wildfire Conference Adressing the Challenges of Bushfire Management
Presentations Notes 2019: DAY 1 (Tuesday Nov. 12th, 2019).
A graph theoretical approach to the Firebreak Locating Problem
(Marc Demange and Pierpaolo Vittorini - RMIT University, Australia / Gabriele Di Stefano - Università degli Studi dell’Aquila, Italy)
Fireﬁghting is the set of activities aiming at preventing and extinguishing unwanted ﬁres. Construction of ﬁrebreaks is one of the possible prevention activities. Firebreaks are areas in which all the vegetation and organic matter are completely removed and a road and water tanks are installed. They are designed and built for preventing a ﬁre from feeding further with any combustible material and give the ﬁreﬁghters a safe place to attack the ﬁre front. The main objective is to prevent ﬁre from escaping towards populated areas and important assets, such as hospitals and school.
Firebreaks require annual maintenance: keeping the optimal functionality is very onerous, since the total absence of vegetation must be guaranteed, especially during the ﬁre season. So, even though ﬁrebreaks constitute an eficient tool to avoid the propagation of ﬁre between adjacent areas,it is imposible to créate ﬁre-breaking lines everywhere due to economic constraints as well as ecological and landscapemanagement restrictions. Currently,the location of ﬁrebreaks remains empirical and mostly based on statistical analysis of past ﬁres and on expert opinions.