That’s a lot. Looked up numbers for high-speed rail: for passangers minimum is 29Wh/km/sest in Japan and maximum is 41Wh/km/seat for Eurostar, for freight it’s between 315Wh/km/t and 525Wh/km/t. Again, this is for high-speed rail at least 300km/h. For slow speed train(for example 90km/h) this will go much, much lower. Probably something between 30 and 100Wh/km/t.