Collaborative optimization method and system for running charts and underbody application plans of trains on large and small intersections

The invention provides a collaborative optimization method and system for a large and small intersection train working diagram and a vehicle bottom application plan, and belongs to the technical field of rail transit operation and maintenance. A linear weighting method is adopted, the minimum sum of passenger travel cost and enterprise operation cost serves as a target function, and a collaborative optimization model is constructed; and solving the constructed collaborative optimization model based on a genetic-simulated annealing algorithm to obtain a collaborative optimization scheme of the virtual marshalling large and small road traffic diagram and the vehicle bottom application plan. According to the method, travel time of passengers is converted into economic cost according to time-varying passenger flow requirements of urban rail transit lines, constraints such as station service constraints, virtual reconnection constraints, train running constraints and vehicle bottom turnover constraints are compreh