PHL Mitigation Results€¦ · Population Impact Change Analysis Summa ry - Original Preferred...

PHL Mitigation Results

Original Preferred Alternative Mitigated Preferred Alternative

Change Resulting In Estimated Pop. Change From Level Estimated Pop.Significant 1.5+ DNL 65+ DNL 251 1.5+ DNL 65+ DNL 0Slight to Moderate 3.0+ DNL 60-65 DNL 3,637 3.0+ DNL 60-65 DNL 0Slight to Moderate 5.0+ DNL 45-60 DNL 113,288 5.0+ DNL 45-60 DNL 690

Population Impact Change Analysis Summary - Original Preferred Alternative 2011

Level of Impact Noise Increases Noise DecreasesChange Resulting In Estimated Pop. Change From Level Estimated Pop.

Significant 1.5+ DNL 65+ DNL 0 1.5+ DNL 65+ DNL 0Slight to Moderate 3.0+ DNL 60-65 DNL 0 3.0+ DNL 60-65 DNL 0Slight to Moderate 5.0+ DNL 45-60 DNL 6,920 5.0+ DNL 45-60 DNL 3,962

Population Impact Change Analysis Summary - Mitigated Preferred Alternative 2011

Level of Impact Noise Increases Noise Decreases

-8 -0.5 +0.5 +8-8 -0.5 +0.5 +8

Mitigation DNL Difference – Color Overlay(Mitigated minus Original)