1976年几个国家电气化铁路的发展情况见表1。铁路电气化发展速度最快的是苏联(见表2),近20年内平均每年电化1,670公里,最快年份1961～1965年平均每年电化2,220公里。1980年,苏联电气化铁路里程计划增加到43,400公里,将占全国铁路营业里程的31%。1976～1980年新修电气化里程为4,500公里(同 The development of several national electrified railways in 1976 is shown in Table 1. The fastest developing railway electrification is the Soviet Union (see Table 2), with an average of 1,670 kilometers per year in the past 20 years and an average of 2,220 kilometers per year in 1961-1965. In 1980, the Soviet Union electrified railway mileage plan increased to 4300 kilometers, accounting for 31% of the national railway mileage. The newly built electrification mileage was 4,500 kilometers from 1976 to 1980 (same as that of the previous year)