In preparation for the new Orion rocket launching system, NASA contacted roller coaster engineers to design a new escape system in case of a dangerous launchpad malfunction. And by “malfunction”, I mean “explosion”, like the tragedy that befell the 3 Apollo 1 astronauts in 1967.
The new escape system is basically a roller coaster. In the event of an emergency, astronauts or workers would scuttle over to the platform, which would drop 380 feet down and then roll them along rails directly into a bunker. The whole thing would take 4 minutes from top to bunker.