First of all, you should institute a real curfew, from 11 p.m. to 7 a.m., so that people can get eight hours of sleep. That would be the first thing to do. You need to declare a moratorium immediately, before you start studying this issue. Next, you should look at flight altitudes.
I mentioned oversight. In Europe, there are independent bodies that handle public complaints and fine carriers for violating curfews or noise standards. That would be the first thing to do after the curfew comes into effect. An organization like that would study the corridors and examine landing or take-off techniques that are used around the world to reduce the impact of noise on people living in residential areas in cities and municipalities. I think that's the first thing that should be done.