Want to know more?
The Federal Railroad Administration controls when and where trains blow their whistles, though they can't control "the music" engineers add! And it also has created a provision for quiet zones. There's a fact sheet with the details.
The FRA also has a guide to creating a quiet zone.
A list of the locations of quiet zones.
CSX has a helpful guide to creating a quiet zone.
Previous Jacksonville engineering study, 2006
The Government Accountability Office did a study in 2017 about the safety of quiet zones.
A European study looks at the health effects of train horns.
FUNDING QUIET ZONES
Forty cities and counties in Florida have established quiet zones. Here are some links about hot they established theirs.
All Aboard Florida project in South Florida
Plant City quiet zone
Broward County quiet zone
North County (Palm Beach Gardens) quiet zone
Jupiter quiet zone