Quay Valley, California
In March 2015, Dirk Ahlborn, the CEO of Hyperloop Transportation Technologies (HTT) in El Segundo, California announced a plan to build a hyperloop test system at the Quay Valley site. Ahlborn indicated that construction could begin in 2016 to be completed in 2017 with the first rides to begin in 2018 if his company can raise $100 million in funding. The company has said that this track will be a fully working and operational creation of the hyperloop, but that running speed will be reduced on the shortened track from Hyperloop's full potential. It is not decided whether a 5-mile loop or straight section will be constructed, and it may cross the Interstate bisecting the site. Ahlborn said that speeds up to may be possible. Quay Hays expects to break ground on the new community in 2016, including a working version of the Hyperloop, estimated to cost $100–150 million.
Brooklyn–Queens Connector
Under the slightly revised plan released by the city, the route would travel with 30 wheelchair-accessible stops, with an increased construction cost of $2.5 billion. There would be sixty vehicles, costing $5 million total, that would travel at , and would be separated from vehicular traffic for 70% of the route. Two bridges over the Newtown Creek and the Gowanus Canal were proposed, in the case that the Pulaski Bridge over the Newtown Creek, and the Hamilton Avenue bridge over the Gowanus Canal, aren't able to accommodate the vehicles; the Newtown Creek bridge will probably be located at Vernon Boulevard, where another bridge previously existed. A trip between Dumbo and Greenpoint would take 27 minutes via the line. The fare for the route would equal the fare of the subway and the buses.