Hyperloop UPV
The Hyperloop UPV concept is a levitating rail-free pod design. Using magnetic repulsion and air cushioning for levitation is expensive and can produce unpredictable forces. The pod is equipped with a hybrid system of permanent magnets and electromagnet units, being able to control lift, so it can hover from the top of the tube. That way, the pod doesn't need so much electricity to be lifted by itself. Propulsion is obtained through expansion of the air with a nozzle, located at the rear of the pod, achieving speeds of up to 1000 km/h. The turbine recovers energy from the flow allowing a more efficient journey. This clean tube layout is said to cut costs in up to 30% of the whole Hyperloop project (about 180m USD) and the possibility to comfortably fit more passengers.
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.