U.S. rail tracks are typically too old to handle the speed of new train technology. The limits of the rails can reduce the effectiveness of the train speeds, sometimes by more than 100 mph. The issues with the rail run from overly sharp curves to old bridges.

The lack of bullet trains in the U.S. in 2026 is the result of a complex mix of geography, car culture, and property rights. Unlike Europe or Japan, U.S. cities are often sprawling and far apart, making the high upfront cost of high-speed rail (HSR) difficult to justify outside of the "Northeast Corridor." Additionally, the U.S. has spent the last 70 years investing trillions into the Interstate Highway System and aviation, creating a deeply ingrained cultural preference for cars and planes. From a legal standpoint, building HSR requires "land acquisition" across thousands of private properties, leading to decades of lawsuits and environmental reviews—a hurdle that centralized governments in China or Europe can more easily bypass. However, projects like Brightline West (Las Vegas to LA) and California High-Speed Rail are finally making progress in 2026, signaling a slow shift toward high-speed rail in the American transit landscape.