The main result of doctoral thesis is a three-level system solution and monitoring tool development that provides public transport system sustainable development. This is reached by formalizing the concept of public transport system sustainable development taking into account ecological problems, priorities of passengers and also economical effect, therefore, developed monitoring tool give the possibility to monitor all the sustainability criteria level to keep the system in sustainable and safe position. Developed by author monitoring tool show also all the criteria which are in critical level and can threat the system sustainability, so it is possible to react maximally fast to keep the system in sustainable position by normalizing the level of critical criteria. Other hand, increase the level of security is achieved through the use of video-cameras in vehicles, as well as outside the vehicles, emergency alerts are also sent to the system's monitoring tool, providing a response to the alarm causes and consequences. The possibility to use LIDAR technology in vehicles to provide higher level of safety in cases of emergency braking has been tested and proven experimentally. The results are positive and allow to conclude that these technologies allows to avoid the crashes, which are dependent on the "human factor", in emergency braking cases, thereby also increasing the level of public transport system safety.