January 21, 2016, 11:29 AM NaN:NaN — -- The Hyperloop, Elon Musk's vision of launching humans through pods inside a high-speed transportation system, could be ready for passengers by 2018, according to a company building a transportation track in California. The billionaire businessman first unveiled his futuristic idea in 2013, calling it "a cross between a Concord, a rail gun and an air hockey table." He published the 57-page design plan on both Tesla Motors' and SpaceX's blogs as a PDF available for download and for anyone to bring the idea to life. One company working to make Musk's vision a reality, Hyperloop Transportation Technologies, said it has filed for construction permits in Quay Valley, California, for a 5-mile track. "We are announcing the filing of the first building permit to Kings County to the building of the first full-scale hyperloop, not a test track," Bibop Gresta, the chief operating officer of Hyperloop Transportation Technologies, said today at the World Economic Forum in Davos, Switzerland, during a CNBC/TradeShift event. What Elon Musk Says Could Be More Dangerous Than Nuclear Weapons