@weekend_75officiel: Miniature airport runway engineering in action! ✈️🏗️ This ultra-realistic scale model shows how a modern runway is built with multiple engineered layers—compacted subgrade, granular drainage, perforated subdrain pipes, and a strong pavement surface—to manage groundwater, prevent waterlogging, and provide a stable foundation for heavy aircraft. #fblifestyle #AirportEngineering #RunwayConstruction #CivilEngineering