The 21st International Conference “Man and Working Environment”
SAFETY ENGINEERING & MANAGEMENT SCIENCE, INDUSTRY, EDUCATION (SEMSIE 2025)   
PROCEEDINGS OF PAPERS 
25-26 September 2025, SOKOBANJA, SERBIA  

Vasil Dimitrov 

PROFESSIONAL PAPER

CHANGES IN THE REQUIREMENTS FOR ENSURING SAFE EVACUATION OF PEOPLE

DOI: 10.46793/SEMSIE25.277D
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Abstract:

The report analyses the requirements for ensuring safe evacuation of people from buildings, arising from the latest amendment to Ordinance No. Iz-1971 on construction and technical rules and norms for fire safety in the Republic of Bulgaria, as well as their consequences. The regulatory requirements determining the length of the evacuation route – both within a room and to the final evacuation exit – are examined. The normative requirements for the permissible evacuation time from rooms and buildings are presented, along with two calculation methods for determining the evacuation time from a building.

Keywords:

Evacuation, evacuation time, calculation methods, evacuation route

ACKNOWLEDGEMENTS:

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REFERENCES:
  • Dimitrov, S. (2019). Fire Safety of Buildings and Construction Facilities. Sofia. 
  • EN 1125 Building hardware – Panic exit devices operated by a horizontal bar, for use on escape routes – Requirements and test methods. (2008). 
  • Ordinance No. Iz-1971. (2009). Ordinance No. Iz-1971 of 29.10.2009 on building-technical rules and regulations for ensuring fire safety. (OJ No. 96 of 4 December 2009, as subsequently amended and supplemented, OJ No. 91 of 29.10.2024).  
  • Simeonova, N. (2024a). Essential characteristics, construction and field of application of fire doors. XXIV international scientific conference VSU'2024, 331-340. 
  • Simeonova, N. (2024b). Types of doors with fire characteristics and upcoming changes in their documents for incorporation. XXIV international scientific conference VSU'2024, 341-352.  
  • Simeonova, N. (2025). Control of the compliance of the construction products used in the buildings and facilities with the regulatory requirements for fire safety. Sofia: Publishing house for territorial planning and construction – ITUS 98 Ltd

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