罗马大学：2025年超级高铁（Hyperloop）：第五种新型交通方式-技术研发进展、优势及局限性研究（英文版）

In 2013, Elon Musk proposed an idea. He would propel passengers in a pod through an evacuated tube at nearly the speed of sound, hurtling them from Los Angeles to San Francisco in 30 minutes. It’s a lot quicker than the 2 hours and 40 minutes of the rival technology, a proposed high-speed train. He called this scheme the Hyperloop and said it would cost US $6 billion to build versus $60 billion for the train. And because the Hyperloop’s friction- free movement would save energy, operating c