This post is a bit out of the ordinary when it comes to urban design. But, as a planner, it amazes me how closely airports often encroach on neighborhoods. The noise level is usually abated by retrofitting the homes. Schiphol Airport, in the Netherlands, is one of the busiest in the world. The sound remediation strategy deployed there is a creative, yet scientific, solution that utilizes land form as a solution. At the same time, the landforms create recreation space and an artful pattern on the ground when viewed from the air. This idea could translate to sound buffer solutions for highways, race tracks, and other venues. The design team was definitely thinking outside the box!