T.F. Green Airport Improvement Program - FEIS Chapters - PVD

T.F. Green Airport Improvement ProgramEnvironmental Impact Statement and Final Section 4(f) EvaluationAlternatives B2 and B4 in 2020. Alternative B2 would not result in a significant noise increase at any nonresidentialnoise-sensitive sites in 2020. Alternative B4 would expose two non-residential noise-sensitive sites,Jehovah’s Witness of Warwick (Site PW017) and Baha’i Faith (Site PW039), to a significant noise impact thatwould make them eligible for sound insulation; however, Baha’i Faith has been sound insulated as part of aprevious sound insulation effort under the Part 150 NCP.In 2025, Alternative B2 would result in a significant noise increase to 49 housing units (an estimated 115people)–all units of which have already been sound insulated (Table 5-31) –and none would experience a slightto moderate impact. Alternative B2 would not result in a significant noise increase at any non-residential noisesensitivesites in 2025. Alternative B4 would result in a significant noise increase to 108 housing units (anestimated 254 people) and none would experience a slight to moderate increase in 2025. Alternative B4 wouldexpose three non-residential noise-sensitive sites: Jehovah’s Witnesses of Warwick (Site PW017); Baha’i Faith(Site PW039); and John Wickes School (SCH524) to a significant noise impact in 2025 that would make the siteseligible for sound insulation. The John Wickes School and Baha’i Faith have been sound insulated as part of aprevious sound insulation effort under the Part 150 NCP.5.3.8.2 Other Noise Impacts on Housing Units and PopulationTable 5-32 summarizes the housing units and number of people that would be newly exposed to noise levels betweenDNL 65 dB and 69 dB, and DNL 70 and above for Alternatives B2 and B4. The primary reason for the greater noiseimpacts for Alternative B4 compared to Alternative B2 is that the Runway 23 End RPZ would not be cleared underAlternative B4 since no changes would be made at the Runway 23 End. 290Table 5-32Alternatives B2 and B4: Comparison of Newly Noise-Exposed Housing Units and Population toDNL 65 dB and Above 1,2,32015 2020 2025Measure Alternative B2 Alternative B4 Alternative B2 Alternative B4 Alternative B2 Alternative B4Population and Housing Units Newly Exposed to Noise Levels Between DNL 65 dB and 69 dBHousing Units 5 209 156 203 156 188Population 12 491 367 477 367 442Population and Housing Units Newly Exposed to Noise Levels Above DNL 70 dBHousing Units 0 2 15 20 23 3Population 0 5 35 47 54 7Source: HMMH, 2011. U.S. Census Data, 2000.Notes: Represents the number of housing units and non-residential noise-sensitive sites affected by significant noise levels during a specific year and are not cumulative.May include homes already sound insulated. ‘Newly Exposed’ means the residential area was exposed to DNL levels below 65 dB under the future No-ActionAlternative and would be exposed at levels above DNL 65 dB under Alternatives B2 and B4. All housing units would be eligible for sound insulation mitigation.Alternative B4 exposes more people and units to noise levels greater then DNL 65 dB because the Runway 23 End RPZ would not be cleared for this alternative.Alternative B2 would result in 100 units eligible for voluntary participation in a land acquisition for the newly created Runway 23 End RPZ.1 Excludes homes acquired under the Completed Part 150 VLAP and the Current Part 150 VLAP (No-Action Alternative).2 Excludes people that would be relocated and housing units that would be acquired for construction, the Future Build VLAPs for noise mitigation, and RPZ area clearing.3 Represents a comparison between No-Action Alternative and Alternatives B2 and B4 for each analysis year.290 Clearing the newly created Runway 23 RPZ under Alternative B2 would result in 100 residential units being eligible for acquisition at the Runway 23 End.Chapter 5 - Environmental Consequences 5-44 July 2011\\mawatr\ev\09228.00\reports\FEIS_Final_July_2011\PVD_CH05_Environmental_Cons_JUL_2011.doc