More recent designs closely resemble high-speed trains.
The Hyperloop One’s recent speed record of 308 kmh (192 mph) is an important step (however small) toward surpassing the first goal of the Hyperloop: to achieve quicker transit than other alternatives. But, while the hyperloop was initially designed to achieve 1,200 km/h (750 mph) with a chic micro-craft built for three passengers, it is developing into something quite different.
In his original outline, Musk illuminated some glaring problems at the conceptual stage of several other “high speed” rail systems — namely the high expense per mile, the cost of operation, and that other propositions were less safe than flying by two orders of magnitude.
No one thought the proposal would come so far a mere four years after Elon Musk released his initial plans for Hyperloop system. But with tubes 3.3 meters (11 feet) in diameter, the craft looks more like the cargo version from Musk’s original concept. Instead of a bobsled, we’re seeing something more like an ordinary train. Additionally, the thin concrete pylons planned for minimal terrestrial footprint will be significantly larger. Since this is more on the scale of a train or highway, the disruptive potential of compact tubes would seem, alas, reneged.