hello ekaterina evgeniy nikolayevich, i propose to start by clarifying the garden according to the terminology in our topic. yes , because it is found in various sources, in addition to a traffic light, for example, a traffic light object, and a traffic light system is a traffic light control system. here, to make it clear and accessible, so that no one confuses the traffic light - this is all familiar to all of us, all this signaling device that we are used to seeing on our streets, roads, either three-color for drivers, or two-color for pedestrians. that is traffic lights. we have 9 types of transport are legally defined, two types of pedestrian traffic lights, but they all comply with the road convention as a signal, because belarus signed the convention at the time, therefore, moving to other countries, european, at least a large number of you see those we are traffic lights similar, these are just the means of our convention on signal signs, to which we also, respectively, a traffic light object. this concept is more complex, it is already more professional. that is, it is just a system o