By request I created this map of existing (pre-NextGen) noise impacts from aircraft in the SoCal study area. Uses are to compare what you’re hearing against the FAA’s modeled baseline.
For noise impacts due to proposed SoCal NextGen refer to :
Disclaimer: This map only contains those flight paths and operations that are related to the SoCal NextGen project at major Class B & C Airspace airports plus Santa Monica. Flights between local airports, and to/from the smaller airports, those that travel in Class D and E Airspace are not in the scope of the FAA’s noise analysis. No helicopters or banner towing biplanes are in this analysis. Source is FAA SoCal EA’s Google Earth supplemental data and US Census Department 2010 population data.