Efficiency — mainly through lower friction “Thanks to the very low friction between the steel wheel and steel rail, railways can move a load using as little as

Efficiency — mainly through lower friction “Thanks to the very low friction between the steel wheel and steel rail, railways can move a load using as little as 15% of the energy that road haulage needs.” Gareth Dennis, How Railways will Fix the Future (https://www.penguinrandomhouse.com/books/761930/how-the-railways-will-fix-the-future-by-gareth-dennis/ https://www.penguinrandomhouse.com/books/761930/how-the-rail...)