The NEC is home to one of the busiest, most complex, and most technically advanced rail systems in the world, with over 2,000 trains on Amtrak-controlled segments each weekday. This traffic mix includes freight trains traveling at speeds of 30-50 mph, commuter trains at speeds up to 125 mph, Amtrak Regional trains at 110 or 125 mph, and Acela Express trains that can reach 150 mph. This makes it the fastest railroad in the Americas, and among the ten fastest in the world.