1984年苏联铁路网长度占世界的11%,货运量占世界的52%,客运量占世界的25%。有些铁路干线的运输密度已达极限。通过提高车辆载重能力和增加列车重量来提高路网运输能力。车辆最大轴重已从21.5t 提高到23.25t。同时在提高列车平均重量方面也取得了良好的结果:1983年增加120kg,而1984年增加了 In 1984, the length of the Soviet railway network accounted for 11% of the world’s total, with cargo traffic accounting for 52% of the world’s total and passenger traffic accounting for 25% of the world’s total. Some rail lines have reached their transport density. Improve road network transport capacity by increasing vehicle load capacity and increasing train weight. The maximum axle load of the vehicle has been increased from 21.5t to 23.25t. At the same time, good results have also been achieved in increasing the average train weight: an increase of 120 kg in 1983 and an increase in 1984