AIRPORT AND NOISE STUDY Q&A
Who operates the airport?
The airport is owned by the City of New Haven, and operated by the Tweed-New Haven Airport Authority. The Airport Authority has a contract with AVPorts to manage the airport.
What type of aircraft use Tweed?
A variety of aircraft use Tweed, providing commercial passenger service between New Haven and Philadelphia International Airport, corporate flights, medi-vac transport, private recreational use and flight training.
On an average day, the airport hosts approximately 100 operations (take-offs, landings, and training flights).
Why do I hear and see aircraft on some days, but not all days?
The direction aircraft fly depends on various factors including air traffic control procedures, safety and airspace management considerations, weather conditions, aircraft capabilities and the origin/destination of the aircraft. Aircraft take off and land into the wind so flight paths will vary.
What can I do if I am bothered by noise?
If you have concerns about aircraft noise in general, you are encouraged to call the Airport Authority at (203) 466-8833 or visit www.flytweed.com, click on “Noise Information” and “File a Noise Complaint.” Submit your concerns and questions. Be sure to let us know how to contact you and provide specific details about your complaint so that the Airport Authority can address your request in an efficient and timely manner.
How is aircraft noise studied?
Aircraft noise is studied by using a computer model developed by the Federal Aviation Administration. The model uses information about aircraft activity at an airport and predicts noise over a wide area around the airport.
The model considers specific types of aircraft, the runways and flight tracks used, as well as standard weather and aircraft performance information.
Why is a computer model used instead of noise measurements?
The Federal Aviation Administration requires the use of the computer noise model because it provides accurate and more comprehensive information than is obtained by using noise measuring devices. Noise measurements taken in the field only capture single, or short-term, noise events and do not allow for a comprehensive assessment of noise exposure over a wide area over a long-term period, such as a whole year.
The Airport Authority, however, has requested that field noise measurements be taken as part of the noise study.
How will Tweed’s noise model work?
The noise model works by compiling and averaging information specific to Tweed for a one-year period, including the number of take-offs, landings, training flights; the types of aircraft; the runways and flight routes used; and weather conditions. It provides an actual picture of the existing noise environment and helps analysts make predictions about the future noise conditions. The model adjusts for, or “penalizes,” noise created at night, between the hours of 10 p.m. and 7 a.m., when people are more sensitive to noise.
What kind of measurement will be used?
The Federal Aviation Administration (FAA) requires the use of the DNL metric to describe noise exposure around an airport and assess adverse impacts on the community and land-use compatibility. DNL (Day-Night Average Sound Level) is a noise metric that describes noise exposure from average operating conditions over a 24-hour period. It is the sum of all aircraft single-event noise levels, averaged over a 24-hour time period, including a penalty for aircraft noise events occurring between 10:00 p.m. and 7:00 a.m.
Will this study only look at “average” noise?
No. Aircraft noise can be studied by looking at single aircraft overflights, or over an averaged period of time (1 hour, 24 hours, daytime, etc). This study will discuss both aircraft noise in terms of both single event noise levels and “cumulative” noise levels.
How can I learn more about noise and how it’s studied?
Noise studies at airports involve terms, concepts and procedures that are unfamiliar to the public. Learn more about Aviation Noise here. Also, please refer to the glossary of aviation terms in this website when you see a word or an abbreviation you do not know.
When will the study be completed?
The noise study is now complete. The FAA issued a Record of Approval of the Noise Compatibility Program in May 2013. Please visit the Documents page for FAA Record of Approval.