TagNoise(91)

The objectives of this study are to evaluate and update the schedule and scope of the aircraft noise remedy program contained in the 1970 Sea-Tac/Communities Plan. The study will address the updated noise projections presented in the 1982 Sea-Tac Noise Exposure Update Study, the extent of the progress made toward implementing the original noise remedy program, and the most recent assessment of present and future finances and local attitudes and interests. The updated noise remedy program will provide the Port of Seattle with recom- mendations of new or revised noise re~edy/abatement measures. The study will follow the standards for developing an airport noise compatibility planning program under FAR Part 150. The work program for the study consists of Design Elements, Project Eleme11.ts, Miscellaneous Elements, and Administrative Elements. The sequence of tasks in each of these four elements and a project schedule are presented in Exhibit 1, and the project organization is shown in Exhibit 2. Design Element tasks include a study design, coordination with governmental agencies as necessary to obtain federal funds for the study, and the develop- ment of an extensive Community Involvement Program. Project Element tasks include the identification and evaluation of appropriate noise abatement/remedy measures and the development of an updated noise remedy program. -1- 0868p - 02/04/83 l1iscellaneous Element tasks include the review of certain land use density guidelines as well as of Airport land use development guidelines. Ad~inistrative EleQent tasks include community and intergovernmental coordina- tion, a community attitude survey, and study summary documentation. The…

Re: FAA Authority to change the 65 DNL noise contour At a recent StART Aviation Noise Working Group meeting, I shared my professional opinion that it would take Congressional action to change the FAA’s 65 DNL noise contour standard. Below, please find additional details that informed my thinking on this topic. Background 1. First here is a quote from "A Guide to the Rulemaking Process" Prepared by the Office of the Federal Register: "Agencies get their authority to issue regulations from laws (statutes) enacted by Congress. In some cases, the President may delegate existing Presidential authority to an agency. Typically, when Congress passes a law to create an agency, it grants that agency general authority to regulate certain activities within our society. Congress may also pass a law that more specifically directs an agency to solve a particular problem or accomplish a certain goal." 2. There are at least three places where 65 DNL is spelled out specifically in federal regulations and federal orders. These are as follows: 2.1. Code of Federal Regulation (CFR) 14 Part 161. This Federal Aviation Regulation (FAR) describes the process from which any noise abatement rules may be required to show a cost benefit analysis prior to any approval or implementation. The rules dictate that all cost benefit analyses are limited to only the benefits within the 65 DNL contour. The authority for FAR Part 16 is spelled out in the Airport Noise and Capacity Act (ANCA) of 1990. In this act Congress was vague…

Health Based Criteria for Use in Managing Airport and Aircraft Noise Permanent link http://nrs.harvard.edu/urn-3:HUL.InstRepos:37945140 Terms of Use This article was downloaded from Harvard University’s DASH repository, and is made available under the terms and conditions applicable to Other Posted Material, as set forth at http:// nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA Share Your Story The Harvard community has made this article openly available. Please share how this access benefits you. Submit a story . Accessibility http://nrs.harvard.edu/urn-3:HUL.InstRepos:37945140 http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA http://nrs.harvard.edu/urn-3:HUL.InstRepos:dash.current.terms-of-use#LAA http://osc.hul.harvard.edu/dash/open-access-feedback?handle=&title=Health%20Based%20Criteria%20for%20Use%20in%20Managing%20Airport%20and%20Aircraft%20Noise&community=1/14557738&collection=1/14557739&owningCollection1/14557739&harvardAuthors=1d8a59eaac33366278a0471eb8917af3&department https://dash.harvard.edu/pages/accessibility

Academic paper presented at the 183rd Meeting of the Acoustical Society of America arguing that the FAA’s 65 dBA day-night average sound level standard is not safe for public health. The paper discusses how the EPA calculated safer levels at 55 dB for outdoor activities and 45 dB for indoor activities, and examines the non-auditory

&F : ; 4 r :• !i •= ;r) n ;}!!sH=tj HH p 1It ! '.+, r {= .. ? , i }_ I + t ’+J.' . .r }_gt . r. ; }.-}i' $ 4 J. ?f iff + :+L+. r.k: 'P{' ;a #: :) : } } :t IS b=.. }. ''-dq q: +.e : ( i t / }i 'S a aP !AJ [ . • T / } ' 'U FiS'!ENT Scale :{©v©k,5 areWw IRWIn&y aNpr, The decibel scale i$ }gar itIInticciS )l©Ci}3G l§ ; Ingie$ COn£1e:L ca:icula' .Or iS ara =OR€J't :Tea doubling o,s c3,osa:Ly tose level ,cortes}a tx) identIcal nail$e source$ operat: lg at the baal' . litttonoise level 3dB h, F:her thana comb alo; Le power has been raul'crease ne ans thatadi3 :log atit}mic scaleBecause of lqe8 cannot beave .e addition and division Decibel '&:Lues must be t: tien r©convertled to decibelthen averagedwar value$ is faapproximately equiva:Len''e£erence levI ht:e10 inEXceILIart hear,could be heard by a person with$OWI, A change of about laB in a.s rleede'extra Inely quiet room in noise :levelan average person to detect a ££erenc' cleaner ,$ dB. fdr ' A--we$ySt:eH! data are Qxpre$$ed$a Monitor a factor used to $imu:Late the responsThe A--weightIngFeILSaC .dc:Ile pitch tones anwhich $ THOse sensitive toear lng ,§£tive tQ ::Low and high p=Lte IIes88 {'. );'-q iii:FIN:1 TX<IN$ t r T ! +t. ';} ; : {}'. b /c'b B} ul }:I} }{!!:E): ! •b ; :/SHI ; Fa • p ! I; : : }{…