Dependence of death and injury of people in fires on the duration of fires

Introduction. The effectiveness of the actions of the fire protection units depends on their readiness for action, that is, on the state of the forces and means of the station and the ability to perform the main task within the existing tactical capabilities.
Problem Statement. When developing mathematical models of the operational activities of the fire department, its effectiveness and the assessment of the readiness of fire protection units to extinguish fires, it is important to study the dependence of the death of people in fires on the duration of the fire. This study is devoted to this task.
Theoretical Part. The distribution of fires in the Russian Federation for 2016-2020 by their duration and the dependence of deaths and injuries of people in fires, as well as their ratio to the duration of fires in the Russian Federation for 2016-2020, is studied. It is shown that the average duration of the fire during the studied period was 26 minutes, the median value of the distribution was 18 minutes. The dependences of deaths and injuries of people in fires on the duration of fires are approximated by a logarithmic function. When the duration of the fire is up to 26 minutes. the ratio of the number of people injured in fires to those killed decreases exponentially, but remains stable in the rest of the time range.
Conclusions. It is concluded that it is necessary to increase the readiness of the fire department for actions to extinguish fires and rescue people, which includes the development of an information and analytical model of the operational activities of the fire department.

1. Order of the Ministry of Emergency Situations of Russia No. 444 of October 16, 2017 "On Approval of the Field Manual of Fire Departments Defining the Procedure for Organizing Fire Extinguishing and Emergency Rescue operations". Available from: http://base.garant.ru/71846130/#ixzz6rnhIXUbf (accessed 12.04.2021). (In Russ.)

2. Puchkov V. A., Artamonov V. S., Dagirov Sh. Sh. et al. Pozharnaya bezopasnost': uchebnik: v 2 ch. Ch. 1. Moscow: Akademiya GPS MChS Rossii, 2016. 476 p. (In Russ.)

3. Shebeko Yu. N., Shebeko A. Yu., Gordienko D. M. Assessment of equivalent fire duration for building structures based on compartment fire modeling. Fire Safety. 2015;1:31–39. (In Russ.)

4. Lapshin S. S. Mathematical Model of Critical Fire Duration in Adjacent Room with Fire Source. Vestnik IGEU. 2010;4:83–86. (In Russ.)

5. Goryacheva M. N., Puzach S. V., Goryachev S. A., Doan V. M. K opredeleniyu kriticheskoy prodolzhitel'nosti pozhara po toksichnym produktam goreniya. Fire and Explosion Safety. 2012;21(1):47–50. (In Russ.)

6. Artemyev N. S., Bondarenko M. V. Fire and emergencies: prevention, elimination. Fire and emergencies: prevention, elimination. 2011;1:47–49. (In Russ.)

7. Bobrinev E. V., Kondashov A. A., E Udavtsova . Yu. The use of regression analysis of indicators of loss of life in fires from the time of arrival of the first fire division the fire. Vestnik of Saint-Petersburg university of State Fire Service of EMERCOM of Russia. 2019;3:95–102. (In Russ.)

8. Poroshin A. A., Kharin V. V., Kondashov A. A. et al. Investigation of the Risk of Death in Fires from the Time of Arrival of the First Fire Department. Life Safety. 2019;9:3–9. (In Russ.) 9. Fire statistics for 2007-2020. Available from: https://sites.google.com/site/pojstat/home/statistika (accessed 14.04.2021). (In Russ.)

9. Brushlinskiy N. N., Sokolov S. V., Evdokimov V. I., Ivanova O. V. Statistical analysis of deaths and injuries from fires worldwide and in Russia (2008–2012). Medicо-Biological and Socio-Psychological Problems of Safety in Emergency Situations. 2015;2:30–37. (In Russ.)

10. Zimonin A. A., Firsov A. V., Butenko V. M. Traumatizing of people at fires. Tekhnologii tekhnosfernoy bezopasnosti. 2014;5(57):4. (In Russ.)

11. Kharin V. V., Bobrinev E. V., Kondashov A. A., Udavtsova E. Yu. Statistical approach of assessing the degree of fire hazard by the ratio of injuries and deaths in fires. Vestnik NTsBZhD. 2019;4(42):127–135. (In Russ.)

12. Kharin V. V., Poroshin A. A., Udavtsova E. Yu. et al. Sootnoshenie chisla travmirovannykh i pogibshikh kak pokazatel' opasnosti posledstviy pozhara. Aktual'nye problemy pozharnoy bezopasnosti: sb. materialov XXХI Mezhdunar. nauch.-prakt. konf. Moscow, 2019. p. 568–571. (In Russ.)

13. World Fire Statistics. Available from: https://www.ctif.org/sites/default/files/2020-06/CTIF_Report25.pdf (accessed: 14.04.2021).