The FAA and the San Diego County Regional Airport Authority have been installing sound attenuation treatments to mitigate aircraft noise in homes around the airport.  The goal is to reduce interior noise levels by at least 5 decibels inside the home, providing a noticeable reduction in noise level.

Here’s how one turned out:

San Diego International is the busiest single-runway commercial service airport in the United States, and second in the world after London Gatwick, with approximately 600 departures and arrivals carrying 50,000 passengers each day, and a total of 18.3 million passengers in 2007.