日本认为铁道运输的能量利用率高于其它运输形式。例如按人一公里计算的旅客运输能量消耗,铁路是汽车的1/8,飞机的1/10,接吨一公里计算的货物运输能量消耗,铁路是水运(内河、海运)的1/2,卡车的1/6。在各种铁路牵引中,蒸汽机车效率只有7％,电力机车 Japan believes that the energy utilization rate of railway transportation is higher than other forms of transportation. For example, one kilometer per passenger transport energy consumption, the railway is 1/8 of the car, the aircraft 1/10, take a kilometer to calculate the energy consumption of transport of goods, the railway is water (inland waterway) 1/2, 1/6 of the truck. In a variety of railway traction, steam locomotive efficiency of only 7% of electric locomotives