车场分工方案数的计算

A Computation of the Number of the Plan for Yard Division of Labour

铁路运输组织中存在诸多设备分工问题，诸如：衔接有若干方向的铁路枢纽的若干车站，按方向别接发列车以共同分担枢纽运输任务的车站分工；衔接若干方向的铁路车站的若干车场，按方向别接发和改编列车的车场分工；不同车组合并使用编组场若干线路的集结分工…等等．本文要解决的是分工方案数问题．

There are many divisions of labour between sections in railway transportation management, such as the division of labour between several stations in railway terminal joining several directions, the division of labour between yards in railway station joining several directions, and the lines division of labour in marshalling yard. The paper aims at solving the problem about division of labour plan.