A Correction Model of Loaded Trains Grade resistance calculation

It is important to validate the train movement simulation model according to the reality. Inaccuracy of train grade resistance model is confirmed to be the important reason of the error by some experiments. With a lot of research on the impact of track layout to the calculation error of train grade resistance, some results have been obtained in this paper. First, calculation error of train grade resistance is able to be ignored on even tracks. Second, notable errors are usually happened when loaded train runs on steep gradient tracks. Third, the specific grade resistance is always smaller than permillage of the grade under the condition that the gradient exceeds 5⁰/₀₀. Finally, new model is proposed, which can be used to correct the errors of loaded train´s grade resistance calculation. Based on a lot of verifications, the average of the calculation errors decrease from 9.1% to 3.6%.