Air traffic near Glenwood Lake, New Rochelle, 10801

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  • First attempts to download data
  • Guide to reading AirNav map
  • Spot checks that websites are accurate
  • Kymograms as a quick way to quantify direct hits
  • Let's count the flights early version
  • After one full week of data collected, let's count the flights.
  • Patterns (just one example as of now)
  • Patterns beginning of a web page with annotated patterns per hour with explanations
  • Flight pattern example for one full day hour by hour
  • unusual details or perceptions from ground vs maps
  • other thoughts
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    Text from https://cromwell-intl.com/travel/usa/new-york-lga-arrival/:
    "The three New York City metropolitan airports of LaGuardia, JFK, and Newark combine to form the largest airport system in the U.S. Teterboro in New Jersey handles a lot of business traffic, and there are heliports on both sides of Manhattan and elsewhere in the city. The combination is first in the world in terms of total flight operations, and second in the world in terms of passenger traffic (London Heathrow at 135 million, New York at 122 million, and Tokyo at 100 million). LaGuardia itself handled over 26 million passengers in 2013."

    Gov't Accounting Office (GAO) discounts FAA sound statistics in 2021 report titled, FAA Could Improve Outreach through Enhanced Noise Metrics, Communication, and Support to Communities":
    "GAO’s analysis showed that because DNL [Day-Night Average Sound Level] combines the effects of several components of noise into a single metric, it does not provide a clear picture of the flight activity or associated noise levels at a given location. For example, 100 flights per day can yield the same DNL as one flight per day at a higher decibel level, due to the averaging effect of FAA’s metric (see figure). GAO’s analysis and other research demonstrate the limitations of FAA relying solely on DNL to identify potential noise problems. .... Since no single metric can convey different noise effects, using additional metrics—such as changes in number of flights overhead—in designing proposed flight paths could help FAA identify and address potential noise concerns."
    Note that GAO did the report in response to Performance Based Navigation (PBN) which is a new (last decade or so) technology being implemented to, among other things, allow for planes traveling closer together thus more planes thus more noise.

     

    last updated October 2022

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