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

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T.F. Green Airport Improvement ProgramEnvironmental Impact Statement and Final Section 4(f) EvaluationRoads (to the north only), and the Future Build VLAP beginning in 2020 for noise mitigation (residential landacquisitions both north and south). By 2025 under Alternative B4, cumulative, or continued, residential land usechanges would be evident south of the Airport due to additional residential parcels that would be eligible forland acquisition because of noise increases (272 residential parcels consisting of 275 units). Alternative B4 resultsin the acquisition of fewer housing units than Alternative B2 because it moves the extension farther south whereprevious land acquisition for noise-mitigation has been implemented.Cumulatively, by 2025, the amount of incompatible land use is reduced under both Alternatives B2 and B4 (aseven percent decrease in the amount of land area under Alternative B2 and a five percent decrease underAlternative B4). This decrease is a result of the residential land acquisition for noise mitigation under Future BuildVLAPs in combination with mandatory acquisition of residential parcels for construction and land RPZ areas.Table 5-49All Alternatives: Cumulative Full Residential Land Acquisition (Parcels and Housing Units)No-Action Alternative Alternative B2 Alternative B4Housing Housing HousingLand Use Type Parcels Units Parcels Units Parcels UnitsCurrent Part 150 VLAP 1 115 135 115 135 115 135Improvement Program (Mandatory)Runway Safety Area Enhancements NA NA 6 1 2 0Partially Relocated Airport Road NA NA 1 0 1 1Runway 5-23 Extension NA NA 0 0 0 0Fully Relocated Airport Road NA NA 58 66 NA NARealigned Main Avenue NA NA NA NA 13 10Improvement Program Sub-Total (Mandatory) NA NA 65 67 16 11Future Build VLAP (Improvement Program Noise Mitigation - Voluntary) 2 NA NA 41 3 36 3 77 4 69 4RPZ Areas (Voluntary) NA NA 64 134 64 60Improvement Program Total Sub-Total (Mandatory and Voluntary) NA NA 170 237 155 138Total Cumulative Residential Acquisition 5 115 135 285 372 272 275VLAP Voluntary Land Acquisition ProgramNA Not Applicable.1 Based on the FAA-accepted 2020 NEM (dated July 27, 2010). All parcels and housing units would be acquired by 2015.2 Assumes residential land acquisition between 2020 and 2025 for all parcels directly impacted by a noise level of DNL 70 dB (and eligible adjacent parcels) in2020. However, it is RIAC’s intention to begin to acquire residential parcels as soon as 2012, subject to availability of funding.3 For the purposes of this EIS analysis, it is assumed that two parcels totaling 0.5 acres and containing two housing units would be acquired for project-relatednoise mitigation between 2015 and 2020 for noise impacts beginning in 2015. However, it is RIAC’s intention to begin to acquire residential parcels as soon as2012, subject to availability of funding.4 Sum of the Current Part 150 VLAP and the Improvement Program Sub-Total (mandatory and voluntary) parcels and housing units.5.4.8 Comparison of Alternatives B2 and B4This section summarizes and compares the land use changes due to land acquisition and changes in noise levelson noise-sensitive land uses and zoning districts (residential) as well as non-residential noise-sensitive sites dueto the Alternatives B2 and B4. Both Alternatives B2 and B4 would result in mandatory and voluntary landacquisitions and in a significant increase in noise to noise-sensitive (residential) land uses.Chapter 5 - Environmental Consequences 5-72 July 2011\\mawatr\ev\09228.00\reports\FEIS_Final_July_2011\PVD_CH05_Environmental_Cons_JUL_2011.doc
T.F. Green Airport Improvement ProgramEnvironmental Impact Statement and Final Section 4(f) Evaluation5.4.8.1 Significant Land Use ImpactsBoth Alternatives B2 and B4 would result in a significant increase in noise (increase of at least DNL 1.5 dB at orabove DNL 65 dB) to noise-sensitive (residential) land uses (in 2020 and 2025 only under Alternative B2, and inall analysis years for Alternative B4 due to the expedited construction schedule). Under Alternative B4 in 2015,180 residential parcels totaling approximately 32 acres would be affected by significant increases in noise whencompared to the No-Action Alternative (Table 5-41). In both 2020 and 2025, Alternative B2 would expose lessresidential land uses to significant noise impacts (71 parcels totaling approximately 11.5 acres in 2020 and48 parcels totaling approximately seven acres in 2025) than Alternative B4 (169 parcels totaling approximately30 acres in 2020 and 108 parcels totaling approximately 18.5 acres in 2025) (Table 5-41). This is because underAlternative B2, more residential acquisitions are required for construction of Fully Relocated Airport Roadnorth of the Airport and because under Alternative B4 the extension of Runway 5-23 is to the south of theAirport would result in increased aircraft operations over a predominantly residential area. As discussed underSection 5.3, Noise, all noise-sensitive land uses impacted by a significant increase in noise would be eligible forsound insulation mitigation.5.4.8.2 Land AcquisitionIn 2020 under the No-Action Alternative, it is assumed that 59 parcels at the Runway 5 End and 56 parcels at theRunway 23 End would be acquired under the Current Part 150 VLAP. By 2020, Alternative B2 would result inthe acquisition of 247 residential, commercial, agriculture, and undeveloped parcels totaling76 acres for all land acquisition types (construction, noise mitigation, and FAA-recommended RPZ clearing),which is greater than the total amount of land acquisitions for Alternative B4 (180 residential and commercialparcels totaling approximately 40 acres).Cumulatively, Alternative B4 would result in the least amount of cumulative land use changes compared toAlternative B2 for both commercial and industrial (including agricultural) and residential land uses. AlternativeB4 would have fewer commercial land acquisitions resulting in the least amount of commercial and industrialland use changes to the north of the Airport compared to Alternative B2 (23 parcels containing 12 businessesversus 53 parcels containing 38 businesses, respectively). Alternative B4 results in fewer residential landacquisitions than Alternative B2 for construction, RPZ areas (Alternative B4 does not include Runway 23 EndRPZ area acquisitions), and the Future Build VLAP (272 parcels containing 275 units versus 285 parcelscontaining 372 units, respectively).5.4.8.3 Land Use CompatibilityRefer to Section 5.4.8.1, Significant Land Use Impacts, for a discussion of significant impacts related to compatibleland use. Between 2015 and 2020, the area of residential land (acres) that would be exposed to noise levels ofDNL 65 dB and above would increase by approximately 26 percent under the No-Action Alternative. Between2020 and 2025, the area of residential land (acres) that would be exposed to noise levels of DNL 65 dB and abovewould increase by approximately 37 percent under the No-Action Alternative.Under Alternative B4, residential land uses would become incompatible sooner than under Alternative B2 (by2015) due to the expedited construction schedule for Alternative B4. In 2020 and 2025, Alternative B4 wouldexpose slightly more parcels to noise levels of DNL 65 dB and above than Alternative B2, because underChapter 5 - Environmental Consequences 5-73 July 2011\\mawatr\ev\09228.00\reports\FEIS_Final_July_2011\PVD_CH05_Environmental_Cons_JUL_2011.doc
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