在铁路设计中,特别是在新建铁路的设计中,无论进行分界点分布、计算线路的通过能力和输送能力,或者计算燃料和能量消耗、运营费用,进行线路方案的技术经济比较,以至于进行线路平纵面的细部设计等,都需要进行大量的牵引计算工作。因此,牵引计算学是铁路设计的基础理论和重要手段。牵引计算学是一门应用科学,它随着科学技术的进步和实际运用中出现的问题而逐渐 In railway design, especially in the design of new railways, the technical and economic comparisons of the circuit schemes are carried out regardless of the demarcation point distribution, the calculation of the passage capacity and the transmission capacity of lines, or the calculation of fuel and energy consumption and operating costs The detailed design of the flat surface of the line needs a lot of traction calculation work. Therefore, traction calculation is the basic theory and important means of railway design. Traction calculation is an applied science, which gradually with the progress of science and technology and the problems in practical application