Determination of calculation method of locomotive drive in railway

Importance of railway investments is increased by not only economical development but also by providing integration with social and cultural development. Locomotives are main figures of social transformation and integration. Nowadays there are many types of locomotives at different power and force levels. With developing technology, new locomotives are increased in pulling power and freight capacity. With the increase of total carrying capacity, there emerges the need of calculating the locomotive tractive effort accurately. In this study, dynamic forces that affect train on railway lines are explained in general. In the first step, history of locomotives and technical characteristics of locomotives in our country are explained and mentioned on how to calculate the needed wheel force to overcome the resistances that affect the train. Later on, running resistances of trains are analyzed on two factors as locomotive and vagons and the formulas used in developed countries for railways are mentioned. Likewise, international formulas that show the effect of the curve and grade resistances coming from the line on trains are mentioned. Aderans calculation is compared by examining calculations in different countries. After all these resistances and constraints are explained, the calculation of tractive force of the locomotive is clarified and it is explained that which formulas would be beneficial by comparing locomotive tractives in Italy, France, Germany and USA.