The article deals with the problem of improving the traffic management system. In the AnyLogic environment, the workload of a traffic flow is simulated with the calculation of the throughput efficiency. By varying the parameters of the agent-car and the traffic light control system, the optimal values ​​for the duration of the signals are revealed and the shortest time for crossing the intersection is achieved.To analyze the workload of the selected section of the city of Volgograd, a cartographic service was used. An experiment was conducted on a quantitative model, in the form of measuring the parameters of a car stream at different times of the day. The search for the optimal solution to the traffic control problem on a specific section of the road in Volgograd was carried out, for which variable parameters were selected, the objective function was determined in the form of waiting time at the intersection, and the solution of the problem was obtained in the form of traffic light switching times. The advantages of the method include the visibility of the model and ease of use.

Keywords: bandwidth efficiency, vehicle agent, traffic model, intersection management, simulation

The article presents an approach to the development of a case-based decision support system for assessing the safety of a section of a city's transport system. To store the database of precedents, it is proposed to use an OWL ontology. The use of the ontological approach allows a more accurate interpretation of the subject area, and over time will expand and supplement information about the precedent. The precedent structure is defined. The ontology architecture is given: classes, properties and instances. An example of filling the ontology with precedents is given, using the example of the city of Volgograd. Measure of proximity to compare precedents is proposed. The procedure for adding new precedents to the knowledge base is considered. With the help of the developed decision support system, it is possible to assess the safety of both individual road sections and the entire transport infrastructure of the city.

Keywords: ontology, reasoning by precedents, transport, transport security