Airplane noise concerns overblown?

[Anonymous]

On another site, a resident reportedly measured noise from the NextGen flight path out to ten nautical miles. “It creates 13 times the amount of 24h noise as a 90,000 car per day highway anywhere within 1 mile on each side of the flight path. That is devastating to local residents, no questions about it.”

[Anonymous]

fwiw there are very similar issues/concerns in Loudoun county around Brambleton and Aldie because of the Dulles flight patterns...

https://www.loudounnow.com/news/brambleton-residents-sound-alarm-on-airport-noise-map-changes/article_4e4acab2-5ac3-11ed-ad7e-3b9fba554315.html

[Anonymous]

To describe the effects of environmental noise in a simple, uniform and appropriate way, the day-night average sound level (DNL) noise metric is used. DNL is a metric that reflects a person's cumulative exposure to sound over a 24-hour period, expressed as the noise level for the average day of the year on the basis of annual aircraft operations.

FAA limit above which residential land use is not advisable is 65 dB. Per the 2018 study, 400 flights per day from DCA produce noise levels in northwest DC which at or above 65 dBA, the level at which speech communication begins to be impaired.

That if true looks like the DC flight path neighborhoods are teetering on the edge of being condemned. By no stretch is it not a big deal. If this continues you’ll be selling your house to the eminent domain in a decade.

[Anonymous]

FAA has adopted DNL 65 dBA as the threshold of significant noise exposure, below which residential land uses are compatible, but often also shows contours for DNL 65, 70 and 75 dBA noise levels on maps for reference.

Now I get why they always show Palisades as 55-64

[Anonymous]

Anonymous wrote:fwiw there are very similar issues/concerns in Loudoun county around Brambleton and Aldie because of the Dulles flight patterns...

https://www.loudounnow.com/news/brambleton-residents-sound-alarm-on-airport-noise-map-changes/article_4e4acab2-5ac3-11ed-ad7e-3b9fba554315.html

That’s a great link. We have nothing like this in DC and real estate agents and sellers regularly mislead and minimize the issues for the buyers:

“The county’s airport impact district has three tiers based on the average level of jet noise, and in the highest-noise areas, county policy forbids residential development. In the middle tier, prospective homebuyers must be notified of the airport noise and homes must be built with acoustic treatments to lessen the noise inside. In the lowest tier, a one-mile buffer around the other two, only the notification to homebuyers is required.”

DC should enact the same.

[Anonymous]

Just looked up the Loudon country rules. We have nothing like this and are totally in the higher tiers:

The Federal Aviation Administration has established the Day-Night Average Sound Level (DNL or Ldn) as a measure of community noise; this measure calculates the average noise level over a 24-hour period. Three tiers of noise are included in Loudoun’s AIOD:

Ldn 65 or Higher: Properties located within this area are closest to the airport. New residential development is not permitted in this area.
Ldn 60-65: Properties located within this area are closer to the airport. Any residential development in this area requires disclosures at the time of sale; acoustical treatments for new residential construction and new additions to existing residences; and an easement established prior to construction of a new residence granting the right of overflight in the airspace above the property.
One-Mile Buffer: Properties located within this area are farthest from the airport while still being located within the AIOD. This designation requires a disclosure notice to be included with each sale of residential property.

[Anonymous]

The day Bowser does anything useful like this…

Meanwhile, buyer beware

[Anonymous]

Real estate disclosures should be an action citizen organizations fight for. Fair skies should be fair for all, not just the sellers and real estate agents

[Anonymous]

Nothing will be done about it. You can’t beat the FAA. Neighborhoods along and near the river are largely uninhabitable due to the 24/7 highway overhead.

[Anonymous]

Anonymous wrote:Nothing will be done about it. You can’t beat the FAA. Neighborhoods along and near the river are largely uninhabitable due to the 24/7 highway overhead.

+1. They should just demolish all of the palisades and turn it into a park.

[Anonymous]

I don’t know if you’re joking, but it’s been done on the West Coast. Certainly I can’t see how you justify the prices

[Anonymous]

I also think the disclosures are a must. Loudon did something right.

[Anonymous]

Anonymous wrote:

Anonymous wrote:Nothing will be done about it. You can’t beat the FAA. Neighborhoods along and near the river are largely uninhabitable due to the 24/7 highway overhead.

+1. They should just demolish all of the palisades and turn it into a park.

It would be lovely. Rewild with meadows and exercise and proper river access. I’d also move the Canal Road inland and have a real riverside park. Wow. Gorgeous.

[Anonymous]

Lived in palisades (close in to the city for the neighborhood) for years and you DO hear them. We got used to it and would joke about it, but it is real. We were fairly close to the river too, so it might be better a bit farther away from the river.

[Anonymous]

Anonymous wrote:FAA has adopted DNL 65 dBA as the threshold of significant noise exposure, below which residential land uses are compatible, but often also shows contours for DNL 65, 70 and 75 dBA noise levels on maps for reference.

Now I get why they always show Palisades as 55-64

AND the don’t actually measure it (noise level decibels).

They computer model it.

Such BS.