Faster, cleaner, greener: What lies ahead for the world's railways
https://edition.cnn.com/travel/article/future-rail-travel-cmd/index.html
While 19th Century was the era of steam locomotive, and 20th Century was the era of electric trains, 21st Century will be the era of High Speed Rail. But, we can't expect if steel-to-steel train defeat maglev or not.
