Using superconductors to move people, cargo and energy through one combined system

https://phys.org/news/2023-04-superconductors-people-cargo-energy-combined.html

"stored and transported liquified hydrogen cools superconductor guideway... personal and commercial vehicles 400 mph or double that... magnetically levitated trains... embedding superconductors into the existing highway infrastructure and adding magnets to the undercarriages of vehicles... liquified nitrogen and a vacuum layer used to thermally insulate the liquified hydrogen... less fuel or electricity... with car or truck on superconductor guideway, reducing both cost and environmental footprint"