轨道工程师正在开发一些新型的方法和高性能的机械以满足运营管理部门提出的减少对行车干扰的要求。减少对运输行车的干扰是对轨道维修提出的重要要求,负责繁忙干线维修的工程师们正在研究如何最合理地安排维修工作和如何使轨道尽快恢复正常运营。同时,他们还面临着降低维修费用的问题。如南非铁路轨道维修费用在1976年占运营费的14.3%,到2000年将力图 Orbital engineers are developing new methods and high-performance machinery to meet the operational management requirements to reduce traffic noise. Reducing traffic distractions is an important requirement for track maintenance. Engineers in charge of busy trunk maintenance are studying ways to make the most rational arrangements for repairs and how to bring the track back to normal operation as soon as possible. At the same time, they also face the problem of reducing maintenance costs. For example, South Africa’s railroad track maintenance costs accounted for 14.3% of operating expenses in 1976 and will try its best in 2000