Dubai has agreed a deal with US startup Hyperloop One to evaluate the construction of a near-supersonic transport link that could slash travel times to Emirati capital Abu Dhabi to minutes.
The cash-flush city state, which has recently hosted other hi-tech transport pilots, said it would conduct a "feasibility study" with Hyperloop One to sound out the scheme.
Earlier this year, Hyperloop One held a first public test in the desert outside Las Vegas, trying out engine components designed to rocket pods through reduced-pressure tubes at speeds of 1,200 kilometres (750 miles) per hour.
The company says the system offers better safety than passenger jets, lower build and maintenance costs than high-speed trains, and energy usage, per person, that is similar to a bicycle.