Compilation of Noise Programs in Areas Outside DNL 65 (2009) / Chapter Skim
Currently Skimming:
Pages 5-10
The Chapter Skim interface presents what we've algorithmically identified as the most significant single chunk of text within every page in the chapter.
Select key terms on the right to highlight them within pages of the chapter.
From page 5... ...
In addition, adoption of the DNL 65 guideline in the 1970s reflected a compromise between what was environmentally desirable and what was economically and technologically feasible at the time. This chapter addresses the existing and proposed applicable laws, policies, and regulations, plus relevant court decisions CHAPTER TWO REGULATIONS, POLICIES, AND COURT CASES GOVERNING ISSUES OF NOISE OUTSIDE DNL 65 6
|
From page 6... ...
Table 1 summarizes the relevant regulations and policies that have evolved to the current application of DNL 65 as a threshold of normally compatible residential land use. REGULATIONS ADDRESSING NOISE OUTSIDE DNL 65 Three entities share responsibility for the regulation of airports and aircraft: (1)
|
From page 7... ...
. This requirement resulted in the identification of DNL as the measure of cumulative noise, and DNL 60 dB as the threshold of compatibility; 8 TABLE 2 NOISE COMPATIBILITY PROGRAM MEASURES Operational Measures Land Use Measures Program Management Measures • Implementing a preferential runway system to direct air traffic over less-populated areas • Using flight procedures, including noise abatement approach and departure procedures • Identifying flight tracks to reduce noise and/or direct air traffic over less-populated areas • Adopting mandatory restrictions based on aircraft noise characteristics, such as curfews • Identifying a particular area of the airport that can be used for aircraft engine runups and constructing a "ground runup enclosure" to reduce noise from runups • Acquiring noise-impacted property • Acquiring "avigation easements" or other interests in property that permit aircraft to fly over the property in exchange for payments or other consideration • Requiring disclosure about the presence of the airport and potential noise impacts in real estate documents • Constructing berms or other noise barriers • Sound insulation of structures used for noise-sensitive land uses (e.g., residences, schools, nursing homes)
|
From page 8... ...
, Maryland set DNL 65 dB as its official noise limit for residential land use effective 1 July 1975, and DNL 60 dB when the "U.S. Fleet Noise Level is reduced 5dB below 1 July 1975 level." In discussing the selection of the compatibility DNL level, the report noted that neither Congress nor the EPA intended to set limits for states and local jurisdictions.
|
From page 9... ...
The FAA has been looking beyond DNL 65 in an attempt to determine what will be necessary for airports to accommodate the anticipated growth in air travel demand and to produce the next generation air traffic system. The FAA has indicated that a change to address noise outside DNL 65 will be essential to meet both the capacity goals of the Next Generation Air Transportation System and furthering the development of additional noise stringencies in the international arena.
|
From page 10... ...
• In June 2005, the U.S. Court of Appeals in Washington, D.C., ruled that a Stage 2 restriction at the Naples Municipal Airport was reasonable and the FAA erred in terminating the city of Naples Airport Authority's eligibility for AIP grants (City of Naples Airport Auth.
|
Key Terms
This material may be derived from roughly machine-read images, and so is provided only to facilitate research.
More
information on Chapter Skim is available.