This is a matter of formulating an operation plan that is required for when diagram restoration when a delay or obstacle in the movements of railway trains, etc. occurs. Specifically, it involves the generation of various tasks, such as changing the train operation schedule, changing types such as limited express trains, express trains, and each station, changing the operating procedure, changing station departure and arrival lines, and the operation of specially scheduled trains. While this is done in the control room on the basis of the controller's experience and intuition, the person responsible must be very familiar with the characteristics of the trains in the diagram, and must know the length of each station platform and the line conditions, etc., so the burden is very large. Another problem is that quantitative evaluation of the results is difficult.
