Abstract
Disbanding of freight trains on sorting humps is a key process in railway transport. At most stations, this process still involves human operators controlling retarders and car speed. The lack of models that account for human participation limits both the reliable evaluation of hump automation measures and the application of computer-based train release planning tools. The purpose of this study is to improve the methods of modelling the disbanding trains on sorting humps to take into account human influence. The method of simulation modelling was used as the main research method. Determining the speed and time of rolling of the hitches is carried out by solving the differential equation of motion where distance is used as a variable. Setting the indicators of the process of disbanding of trains is carried out on the basis of the statistical processing of a series of calculation experiments on the rolling of cuts. In order to take into account the human participation in the process of disbanding the trains in the simulation model, additional restrictions are set on the choice of braking modes of the cuts, which are associated with the need to switch the attention of the operator during the simultaneous control of several braking positions, as well as with the transition of the controller between different tracks. The scientific novelty of the work consists in the improvement of the model of the disbanding of trains on the sorting humps, which, unlike the existing ones, allows to take into account the influence of operators of brake positions and speed regulators of cars on the indicators of the sorting process. The practical significance of the work lies in improving the evaluation of automated train release control systems and supporting the development of decision-support tools for train release planning under uncertainty in cut rolling characteristics and braking execution.