摘要
为加快实现我国铁路电气化的进程，改造内燃牵引为电力牵引具有现实的迫切性和实际的可行性。运用临界货运强度的原理，采用费用效益法，确定牵引方式合理经济的转换时间，比选铁路既有线最佳的牵引方式，取得较好的经济效益。
For the purpose of quickening the realization of railway electrization in China, it is necessary to change the diesal traction to electric traction. Based on the principle of the application of the critical intensity of freight traction, the determination of the change of the model of traction depends upon the economical benefits.
关键词
牵引方式
货运强度
转换计算
经济效益
model of traction, critical intensity of freight traffic, change calculation, economical benefits
