In accordance with the program of the training course, the textbook deals with general issues of traffic mechanics, the forces acting on the railway train during its movement (thrust forces, main and additional resistance and braking), and the factors that determine them. The necessary data are provided for the calculation of these forces .. Data on the traction characteristics of locomotives. The analysis of the equation of movement of the train and the possibilities of its solution under different conditions. On this basis, the traditional technique of traction calculations is presented, as well as using computers. Methods of testing locomotives, the history of their development are considered, the role of domestic scientists in the development of the science of locomotive traction of trains is noted For students of universities of railway transport . ;Griff:Recommended by the Office of Personnel and Educational Institutions of the Federal Agency for Railway Transport as a textbook for students of universities of railway transport