There are differences in the concepts and methods of calculating railway capacity among different countries and regions.In overseas rail transit projects,the owner and the consultant often require the operator to evaluate railway capacity by using the UIC406 method of calculating railway capacity.Unlike other railway capacity evolution calculation methods that based on the concept of UIC406,the relevant functions of OpenTrack software can be used to realize and present the railway capacity calculation process provided by UIC406,and evaluate the railway capacity under different situations.The calculation and evaluation process are simple and efficient.The evaluation results are highly recognized in the international rail transit operation field,that provide support for the implementation of overseas rail transit operation projects.