JR East said Tuesday it will start operating self-driving bullet trains on some of the sections of the Joetsu Shinkansen Line for commercial service in fiscal 2028 with a driver aboard to deal with emergencies, in what could be the world’s first such high-speed train service. The autonomous trains will run 55.7 kilometers between Nagaoka and Niigata stations, both in Niigata Prefecture, northwest of Tokyo, and JR East aims to begin completely driverless services on all sections of the Joetsu Shinkansen Line in the mid-2030s. The railway company has said the automated system will reduce human e…