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September 11, 2021 <br />Page 78 <br />Intersection Delay <br />Analysis of operational benefits at the Highway 10/Armstrong Boulevard interchange was <br />conducted using Synchro/SimTraffic during future year peak hours. The results of this analysis <br />indicate the existing interchange will operate well under 2040 no -build conditions if a new <br />Mississippi River crossing is built as described in Concepts 3 and 4. Figure 51 and Figure 52 show <br />the impact of the new river crossing on peak hour intersection delay at the Highway 10/Armstrong <br />Boulevard interchange with existing geometry. Peak hour intersection delay at the interchange with <br />improved geometry is shown in Figure 53 and Figure 54. <br />Figure 51: Hwy 10/Armstrong Boulevard Intersection Delay; AM Peak Hour - Existing Geometry <br />Existing Conditions 9 6 <br />2040 No Build • Traditional <br />12 <br />41 <br />2040 Concept 3 - Traditional 113 <br />2040 Concept 4 - Traditional <br />• Bunker Lake Blvd <br />■ TH 10 WB Ramp <br />■ TH 10EB Ramp <br />151 <br />50 100 150 200 250 300 <br />Intersection Delay (sec) <br />Figure 52: Hwy 10/Armstrong Boulevard Intersection Delay; PM Peak Hour - Existing Geometry <br />Existing Conditions <br />2040 No Build - Traditional <br />2040 Concept 3 - Traditiona I <br />2040 Concept 4 - Traditional <br />128 <br />17 <br />33 <br />• Bunker Lake Blvd <br />■ TH 10WB Ramp <br />TH 10 EB Ramp <br />70 121 <br />5 0 1 CV, <br />151 <br />MIN <br />150 200 250 300 <br />Intersection Delay (sec) <br />Northwest Metro Mississippi River Crossing Feasibility Analysis <br />