While I was waiting for a flight back to England yesterday I noticed how amazingly quiet airports are. I’m not sure whether it was just the off peak time I was travelling or that having not been abroad for a few years I’d forgotten what to expect. I realized that everything had been carefully engineered to provide a quiet space. The walls and ceilings were made of Micro Perforated Plates allowing sound absorption. This made me feel good knowing that this was thought about extensively in the design of the Airport.