Despite their incredible speed and efficiency, maglev (magnetic levitation) trains face several significant disadvantages, primarily rooted in cost and infrastructure. The most daunting challenge is the exorbitant initial cost; because maglev trains cannot run on existing steel tracks, a completely new, highly specialized "guideway" must be built from scratch, often costing three to five times more per mile than traditional high-speed rail. This lack of interoperability means maglev systems are "islands"—they cannot easily integrate with a country's existing rail network, forcing passengers to transfer between systems. Another disadvantage is the high energy consumption required for the powerful electromagnets to maintain levitation, especially at low speeds or when stationary. There are also safety and maintenance concerns regarding the extremely tight tolerances required; even minor shifts in the guideway due to soil settling or seismic activity can be catastrophic at speeds of 600 km/h. Finally, the "strong magnetic fields" generated by the system can occasionally interfere with sensitive electronic equipment or pace-makers, requiring significant shielding in the passenger cars. These factors explain why, in 2026, maglev remains a niche technology limited to a few specific high-traffic corridors rather than a global standard for rail transport.