STOCHASTIC FIRE BRIGADE INTERVENTION MODEL

The article is a continuation of a previously published paper, which, based on an analysis of availableglobal literature, provides an overview of firefighting operational models. It outlines the conceptof a stochastic model, which was implemented in the Aamks software to assess the fire risk ofbuildings, developed several years ago and systematically further expanded at the Fire University.It consists of four main time modules: the time of notifying about a fire, the time from receivinginformation about an incident until the moment of dispatch, the time of arriving at the sceneof the incident and the time from the moment of arrival to the moment of starting firefightingactivities. Their majority were determined in a probabilistic way, while some of them, such asthe fire monitoring notification system and selected elements of the final stage, were assessed ina deterministic way. The paper discusses methods of their estimation, particularly in terms ofthe used data. The developed model consists of two main action phases, each subdivided intosmaller stages, the sum of which gives the time taken to undertake extinguishing actions. Thistime is presented as a probability distribution. The first phase, i.e. the notification of the incident,is variable and depends on the equipment of the building with detection devices. As a result of thevariability of the first phase of action, three different but invariable paths have been identified. Theresults in the form of extinguishing action times, along with the probabilities for each variant, arepresented in three result tables at the end of the article.