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CHAPTER 6 <br />LANDUSECOMPATIBILITY <br />Comparison of the 2006 noise contours to the 2026 noise contours show the contours shrinking in size <br />from north to south, and widening from east to west. This is because of an expected change in military <br />aircraft type. The Navy is expected to replace the A-6 Intruder with the F-18 Hornet. As the F-18 has a <br />quieter noise profile, the 2026 noise exposure contours are expected to affect fewer parcels. <br />Table 6-2 <br /> shows the reduction of affected parcels decreasing across all land use categories, with the <br />exception of commercial, which has one more parcel impacted by the 2026 contours. Housing parcels <br />affected by the 55 DNL or greater contours are expected decrease by 37% by 2026. <br />Table 6-2: Parcels within Eugene Airport Noise Contours <br />YearContour Total <br />65 DNL <br />50 31 5 8 5 0 0 1 <br />2006 <br />55 DNL <br />729 221 349 21 92 9 13 24 <br />Total <br />779 252 354 29 97 9 13 25 <br />65 DNL <br />48 30 3 9 5 0 0 1 <br />2026 <br />55 DNL <br />503 167 218 9 71 10 15 14 <br />Total <br />651 197 221 18 76 10 15 15 <br /> Source: City of Eugene GIS “LandUse.shp” Shapefile <br />The housing category is especially sensitive to airport noise. Per OAR 340-035-0045, housing within the <br />Table 6-3 <br />55 DNL contour can require the Airport to undertake a noise abatement program. shows a <br />breakdown of affected housing parcels by housing type. There is a reduction between 2006 and 2026 in <br />the number of affected housing parcels of all types. There is a significant decrease in single family <br />housing parcels within the 55 DNL contour in 2026, with 117 less affected parcels than in 2006. <br />Table 6-3: Breakdown of Affected Housing Parcels <br />TotalTotal <br />2006 65 DNL 55 DNL <br />ParcelsParcels <br />Duplex0Duplex7 <br />Mobile1Mobile53 <br />Single Family4Single Family290 <br />TotalTotal <br />2026 65 DNL 55 DNL <br />ParcelsParcels <br />Duplex0Duplex3 <br />Mobile0Mobile41 <br />Single Family 3 Single Family 174 <br />Source: City of Eugene GIS “LandUse.shp” Shapefile <br />Understanding the types of homes within the contours allows for evaluation of mitigation techniques, <br />which can include buying property, insulating homes, and limiting the hours of the day that aircraft <br />6-14 <br />Eugene Airport Master Plan Update <br />(February 2010) <br /> <br />