How does Germany build one of the most advanced highway systems on Earth — the legendary Autobahn, where certain sections have no speed limit? In this documentary, discover how German engineers transform raw soil, gravel, and asphalt into ultra-precise, high-strength highways using cutting-edge technology. From GPS-guided graders, multi-stage soil compactors, and robotic rebar systems to world-class asphalt pavers and slipform machines, you’ll see how Germany constructs roadways built to last for decades. Step into massive construction zones where every step — from surveying, earthworks, drainage, asphalt paving, to concrete barrier installation — follows strict engineering standards unmatched anywhere else in the world. Watch how German road-building technology minimizes human error, enhances durability, reduces maintenance, and allows millions of drivers to travel safely at over 400 km/h every day. Mandarin Tech takes you behind the scenes of this engineering masterpiece — a system so advanced that even American engineers can’t help but admire it. 00:00 Intro 00:54 Overview of German Highways 02:05 Highway Foundation Construction 04:36 Concrete Layer Laying 08:07 Asphalt Laying 10:05 Road Marking and Barrier Installation 12:25 Repairing Old Highways 15:51 Conclusion