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日本正在修建一条新的高速铁路——上越线,从大宫到新泻全长275公里。这条铁路大部份经过降雪量很大的山区。该铁路从1971年开始修建,到1978年5月在施工阶段的占全线长度的84%(长230公里),到这时为止,已用12500亿日元,为设计预算值的半数以上,预计1981年通车,上越线设计速度260公里/小时,线路最大坡度15‰,最小曲线半径4000米,竖曲线半径15000米,线间距4.3米,钢轨用60公斤/米,用钢筋混凝土轨枕板做道床。
Japan is building a new high-speed railway, the Toe Toeo Line, which runs 275 kilometers from Omiya to Niigata. Most of the railway passes through the mountains with heavy snowfall. The railway, which was constructed from 1971, accounted for 84% (230 km) of the total length of the construction line at the construction stage in May 1978. By this time, 1,250 billion yen had been used, accounting for more than half of the design budget, Opened in 1981, the design of the Shangyao line speed of 260 km / h, the line maximum gradient of 15 ‰, the minimum curve radius of 4,000 meters, 15,000 meters vertical curve radius, line spacing of 4.3 meters, rail with 60 kg / m, with reinforced concrete sleeper do bed .