
RennyBest
There are two factors that work against noise control. First is that the airport is located in the wrong sort of area. That's been known for, oh, sixty years, but that hasn't kept it from being expanded to near saturation, and there are now plans afoot to replace Terminal 1 with a new facility (which is sorely needed) that will be far larger than now. So, every time there is new construction it makes a move elsewhere less likely. The location makes it impossible to really separate air traffic from the densest parts of the city.
Then there's the fact that the airport is too small, with only one runway. There are airports with multiple runways that only handle a fraction of the traffic going into and out of SAN. Unless the Marine Corps is willing go give up its MCRD, there's no place to put another runway, and hence all the traffic funnels through that single runway. There is no prospect for fewer flights as long as San Diego remains a major tourist destination.
Add in an arrogant and uncommunicative federal agency, the FAA, and you have the recipe for noise, frustration, and angry residents. I really do feel for you guys!
Sjohnna Knack, SD Airport Noise Mitigation staffer, is the Sarah Huckabee Sanders of the Airport Authority.