The safety of the organization is influenced by various factors. In order to increase the level of safety, it is necessary to focus on these factors and to influence them the right way in order to enhance their level. Regarding the safety, safety culture is one of the endogenous factors of organizations. Safety culture issues have not been given much attention so far, although a safety culture can play an important role at a complex level of safety for the organization. In order to increase the level of safety culture, it is required to assess its current state of play. The process of assessing the organization's safety culture is dealt with by one of the institutional grant projects at UNIZA's Faculty of Security Engineering. The elaborated article focuses on the first part of this process, which is the identification of the safety culture sub-sectors and safety culture indicators. Safety culture indicators serve for evaluation of identified sub-sectors, the values of which will be further used to assess the complex level of the safety culture. The article identified 6 safety culture sub-sectors and twenty safety indicators. The individual indicators were later allocated to the corresponding subsectors. In addition, the relevance of each subsystem, which can help to better assess the safety culture, has been celebrated. The methods of analysis and description, as well as the explanation methods, were used to process the article. The results of this article are useful to the professional public, the security science students, as they extend the theoretical foundation of organization security. The results of the article can also be used by any organization looking at the possibilities of analysing its safety. UDC Classification: 304,

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The explosion of an explosive system causes primary and secondary effects on people and objects near its site. The most devastating is the pressure effect of the explosion, especially the overpressure. Individual parameters of pressure wave (overpressure size, duration impulse) can be determined by mathematical or virtual modeling or can also be measured under real conditions. The authors focused on the parameters of the positive phase of the shock wave propagating from the source of the explosion towards the object. The article covers the description and analysis of selected mathematical relations, which are used to determine the magnitude of the explosion overpressure. The results are based on selected formulas. The source of the explosion referred in the study is an explosive system containing a reference explosive trinitrotoluene (TNT). TNT is a military explosive that is used as a reference explosive in technical standards dedicated to the certification of explosion-proof elements, and at the same time, a TNT equivalent is known to allow the mass of an explosive charge to be recalculated. The results obtained by mathematical modeling according to individual approaches have been compared and the possibilities of using computational models in the area of security management and education of security managers have been identified. The results of the study confirm that prediction of pressure wave parameters at different distances and weights can assist security managers in creating attack scenarios and designing a suitable object protection system.

Security and safety culture is an increasingly important term in assessing the security and safety of organizations. It is an internal security and safety factor of an organization that can directly influence its overall security and safety. In many cases, however, organizations do not know, nor do they have a way of assessing the level of their security and safety culture. It is therefore necessary to know the content, elements, and sectors in which it can be identified in order to gain a deeper knowledge of security and safety culture in more detail and be able to examine it. Firstly, we focused on creating a model for evaluating the safety and safety culture and its application in selected organizations. Secondly, we devoted to the description and design of an organization’s security and safety culture assessment model. The proposed model is based on the identification of subsectors and indicators of security and safety culture that will gain their value by using information obtained from combining the four proposed methods. Accordingly, six security and safety culture sectors were defined for the purposes of security and safety culture assessment in selected organizations. These were compared to each other to determine their mutual weight. Finally, using these research methods, security and safety culture indicators were also identified and included in the defined security and safety culture sectors. The research needed to design a security and safety culture assessment model was realized in six selected organizations, which wanted to participate in the research. These were divided according to the size of the organization into two small, two medium, and two large organizations. Crucial element in our research was data collection conducted by means of controlled interviews and questionnaire surveys in these organizations. Based on this survey, indicators of security and safety culture could be identified. As a result of this, security and safety culture values are determined for all analyzed organizations. The conclusions will point up the possible way of evaluating security and safety culture in organizations and it also contains a specific example of their usage in the practice. Thus, by using the resulting values, it is possible to decide the further direction for the organizations, focusing on the sectors of the security and safety culture, which yielded unsatisfactory results.

Research background: Globalization affects the daily lives of every individual, and therefore of the society in which he lives. In the coming years, almost 80% of the population will live in cities, which will have an impact on the socio-economic development of cities. These facts can lead to a deterioration of the security situation. Therefore, cities focused on the design of urban development, and thus on the elimination of undesirable factors. Purpose of the article: Cities around the world began to attend with architectural modifications of spaces, which could positively influence socio-economic factors. Changing the environment can reduce crime in localities. The purpose of the article is to analyze the impact of selected approaches on the quality of citizens’ life and to point out the possibilities of crime prevention through environmental design. Methods: Solution that deals with influencing the urban environment is the CPTED method. This approach focuses on the urban space and the principles of the fight against crime. The article describes the principles of CPTED application in urban space, and ways of its possible use. The methods of economic analysis and mathematical statistics will also evaluate the economic impacts on the budget of the entity using the approach. Findings & Value added: Due to globalization, built-up areas in cities are expanding. These changes have implications for socio-economic factors. The findings can be used in the design of new as well as existing urban spaces by public administration entities (especially regional and local governments), but also by private developers.