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

T.F. Green Airport Improvement ProgramEnvironmental Impact Statement and Final Section 4(f) EvaluationTable 5-24Alternative B4: 2020 and 2025 Aircraft Noise-Exposed Housing UnitsHousing Units by DNL value,No-Action Alternative 1Housing Units by DNL value,Alternative B4 2,3Net Housing Unit Change,No-Action Alternativeand Alternative B4 2,32020 2020 2020Total Total TotalAbove Above Above70 to 65 to DNL 60 to 70 to 65 to DNL 60 to 70 to 65 to DNL 60 toCity >75 dB 75 dB 70 dB 65 dB 65 dB >75 dB 75 dB 70 dB 65 dB 65 dB >75 dB 75 dB 70 dB 65 dB 65 dBWarwick 0 0 1,052 1,052 4,250 0 20 1,120 1,140 4,390 0 20 68 88 140Cranston 0 0 0 0 33 0 0 0 0 128 0 0 0 0 95Total 0 0 1,052 1,052 4,283 0 20 1,120 1,140 4,518 0 20 68 88 235SignificantNoiseIncrease 5 -­ -­ -­ -­ -­ 0 20 154 174 -­ 0 20 154 174 -­Housing Units by DNL value,No-Action Alternative 1Housing Units by DNL value,Alternative B4 2,3,4Net Housing Unit Change,No-Action Alternative and Alternative B4 2,3,42025 2025 2025Total Total TotalAbove Above Above70 to 65 to DNL 60 to 70 to 65 to DNL 60 to 70 to 65 to DNL 60 toCity >75 dB 75 dB 70 dB 65 dB 65 dB >75 dB 75 dB 70 dB 65 dB 65 dB >75 dB 75 dB 70 dB 65 dB 65 dBWarwick 0 3 1,411 1,4 4,698 0 6 1,400 1,406 4,766 0 3 -11 -8 68Cranston 0 0 0 0 143 0 0 0 0 225 0 0 0 0 82Total 0 3 1,411 1,4 4,841 0 6 1,400 1,406 4,991 0 3 -11 -8 150SignificantNoiseIncrease 5 -­ -­ -­ -­ -­ 0 1 107 108 -­ 0 1 107 108 -­Source: HMMH, 2011.1 Excludes 280 units previously purchased under the Current Part 150 VLAP and 135 units assumed to be purchased by 2015 under the Current Part 150 VLAP fora total of 415 units.2 All Alternative B4 counts exclude housing units acquired to due non-noise related land acquisition, including 11 housing units that would be acquired due toconstruction acquisitions by 2015 and 60 housing units would be eligible for acquisition due to the newly created RPZ.3 For 2020 and 2025, the two housing eligible for land acquisition as noise mitigation for noise impacts in 2015 have been excluded from the impacted unit counts.4 For 2025, the 67 housing units eligible for land acquisition as noise mitigation due to noise impacts in 2020 have been excluded from the impacted unit count.5 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.In 2020, Alternative B4 would result in an additional 88 housing units (an estimate of 207 people) exposed to noiselevels at or above DNL 65 dB. In 2025, when compared to the No-Action Alternative, Alternative B4 would result ineight fewer housing units (an estimate of 19 fewer people) exposed to noise levels at or above DNL 65 dB.Table 5-25 summarizes the population that would be exposed to aircraft noise levels of DNL 60 dB or more underAlternative B4 in 2020 and 2025. In 2020, 47 people would be exposed to noise levels DNL 70 dB and above and,therefore, would be eligible for land acquisition as mitigation. By 2025, seven additional people would be exposedto sound levels DNL 70 dB and above. In 2020, 160 additional people would be exposed to noise levels betweenDNL 65 dB and 70 dB compared to the No-Action Alternative; in 2025, 26 fewer people would be exposed to noiselevels DNL 65 dB to 70 dB primarily due to a Future Build VLAP for noise mitigation.Chapter 5 - Environmental Consequences 5-34 July 2011\\mawatr\ev\09228.00\reports\FEIS_Final_July_2011\PVD_CH05_Environmental_Cons_JUL_2011.doc