The road, which connects Beijing to Hebei, features a 62-foot-wide surface constructed using ten unmanned machines. These machines, equipped with advanced algorithms and sensors, worked in tandem to distribute a mixture of compacted stones and sand, apply a bitumen binder, and level the surface with autonomous rollers. Drones monitored the project's development and conducted topographical assessments to ensure adherence to expected parameters, providing real-time feedback to the machines.