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An important part of the definition of sustainability is safety. This study is based on the basic concept of connected transport systems. After defining the basic model, the research aims to simplify the models of highly automated transport systems that are suitable for safety assessment of critical scenarios, including various safety aspects. Accordingly, the basic safety requirements of autonomous systems responsible for the management of traffic processes are summarized. Based on the derived requirements, some of the most relevant safety indicators and the constraints of the simplification process are listed.
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