箭翎线分段线数量的计算

Quantity Calculation or Dividing Lines of Arrow Tail

箭翎线分段线数量不仅与摘挂列车到站数量有关，而且与摘挂列车编成辆数有关，通过对待编摘挂列车车流分布，选取正态分布、均匀分布、先大后小分布三种形式，并通过Ｆ检验和ｔ检验，提出了计算箭翎线分段线数量的线性回归公式。

he number of dividing lines of arrow lines are not only related to the amount of arriving pick-up trains, but also to the number of resorted pick-up trains. By selecting the three distribution forms of positive state, uniform, and from big to small in light of the car now distribution of pick-up trains,and through F and t tests, the paper puts forward the linear regression formula used in calculating quantity of dividing lines of arrow tail.