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3.7 hazardous materials and hazardous waste - Missile Defense ...

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Chapter 3—Affected EnvironmentTable 3.10-13: Estimated Traffic Noise Levelsfor the Remote Sprint Launch Site 4 Area (1)Segment ofHighwayAverageAnnual DailyTraffic Count (2)Distance at whichLeq(1 hour) = 72 dBAoccursin meters (feet)Distance at whichLeq(1 hour) = 67 dBAoccursin meters (feet)Distance at whichLeq(1 hour) = 57 dBAoccursin meters (feet)ND 1 in thevicinity ofRemote SprintLaunch Site 4ND 17 in thevicinity ofRemote SprintLaunch Site 4CR 9 in thevicinity ofRemote SprintLaunch Site 4490 3 (10) 7 (23) 31 (102)450 3 (10) 6 (20) 30 (98)170 1 (3) 3 (10) 12 (39)CR 22 in thevicinity ofRemote SprintLaunch Site 4200 1 (3) 3 (10) 13 (43)(1)Based on the methodology of the U.S. Federal Highway Administration (1978) <strong>and</strong> assuming a traffic speedof 105 kilometers (65 miles) per hour for NDs 1 <strong>and</strong> 7, a traffic speed of 89 kilometers (55 miles) per hour forCRs 9 <strong>and</strong> 22.(2)North Dakota Department of Transportation, 1996—Traffic Volume Maps, Walsh <strong>and</strong> Ramsey Counties.Note: dBA = decibel A-weighted, Leq = equivalent sound levelNMD Deployment Final EIS 3-309

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