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Neighborhood package · Brooklyn

Helicopter noise in Park Slope

Under the several tour and charter routes. Here is an average flying day for the 62,129 people who live here.

23helicopters a day fly directly over Park Slope
29loud flybys a day: 60+ dBA (a conversation close up) at homes somewhere in the neighborhood
17loud flybys a day on a typical street (half of residents get more)
19loud flybys a day on the loudest street
35helicopters a day heard somewhere in the neighborhood (50+ dBA)
4of the flights overhead are by the four big sightseeing tour operators

At one street (40.6720, -73.9780), the "listen" spot: 41 min of helicopter noise between 7 am and 10 pm on an average flying day, busiest around 4 pm. Its worst day was Wednesday, June 24, 2026: 50 helicopters heard and 41 loud flybys, the loudest about 76 dBA.

Hear Park Slope on its worst day Replay another day

Averages are per flying day: 116 days from Thursday, April 30, 2026 to Sunday, September 6, 2026, leaving out 11 days when bad weather grounded most tours and 2 days with incomplete data. The neighborhood outline is approximate. Counted: every helicopter flight with a takeoff or landing at the 11 heliports and airports covered; other helicopters (news, private and transit flights) are not counted, so these numbers are a floor. Levels are modeled outdoor peaks from each aircraft's type, distance and height (the method of Chopper Noise by Allen Shaibani); they are estimates, not measurements. Indoors with the windows closed is roughly 15 to 25 dBA quieter.