CALCULATION AND ESTIMATION OF LINE CAPACITY FOR HIGH SPEED RAILWAY

摘要

According to the characteristics of the higher class of the trains and the higher request of the punctuality of the high speed railway, based on UIC406, this invention 'Calculation and Estimation of Line Capacity for High Speed Railway' dedicated by Ph.D Jiamin Zhang takes the number of trains, the average speed, the stability and the heterogeneity as the core elements for the calculation & estimation of line capacity. This invention constructs the trains at line 'train service-demand intension set' (t@l— TSDIS) and proposes the time needed to complete t@l— TSDIS as the new criteria to measure the line capacity. Under the known number of trains, seeking the optimized values for the heterogeneity, the average speed, the stability satisfied with the balance relationship of the line capacity and taking the Pareto optimum as the object. Considering both the trains service level and benefit of the railway operation, this invention builds the multi-objective (minimize the heterogeneity, maximize the reliability, minimize the running time) Mathematical Program for Line Capacity (MPLC), and it proposes the rolling optimization solution method oriented by the problem of the MPLC multi-objective model with constraints (combination of the improved PAES (Pareto Archived Evaluation Strategy) & interaction method) (Fig. 3, Fig. 4). This invention also illustrates the application of the invented model & its solution to the case of the calculation & estimation of Beijing— Shanghai high speed railway line capacity.