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3.2. 2040 Future Roadway Capacity Improvement Needs <br />To identify the need for potential future capacity improvements, Metropolitan Council 2040 <br />forecasts were compared to planning -level roadway capacities for Principal and A -Minor <br />Arterial Roadways. Planning -level roadway capacities used for this analysis are illustrated in <br />Table 6 below. Based on this comparison, most roadways in the city have adequate capacity to <br />accommodate forecasted Metropolitan Council 2040 travel volumes with little to minimal <br />congestion. These roadways are expected to function well through the 2040 planning horizon. <br />Table 6: Planning -Level Roadway Capacity <br />Arterials <br />Freeways <br />Facility Type <br />Two-lane Undivided <br />Two-lane Divided or Three -lane Undivided <br />Four -lane Undivided <br />Four -lane Divided or Five -lane Undivided <br />Four -lane Freeway <br />Six -lane Freeway <br />Eight -lane Freeway or Higher <br />Daily Two-way Volume <br />Lower Higher <br />Threshold Threshold <br />10,000 12,000 <br />15,000 17,000 <br />18,000 <br />28,000 <br />60,000 <br />90,000 <br />22,000 <br />32,000 <br />80,000 <br />120,000 <br />Calculated on a <br />segment -by -segment basis <br />Based on these planning level roadway capacities, portions of TH 47, US 10, Armstrong <br />Boulevard (CSAH 83), and Ramsey Boulevard (CSAH 56) are expected to exceed capacity in <br />2040. TH 47 is currently a rural two-lane roadway with a planning -level capacity of 10,000- <br />12,000 and a forecasted 2040 volume of 9,500-22,200. US 10 is a four -lane divided roadway with <br />a planning -level capacity of 28,000-32,000 and a forecasted 2040 volume of 44,000-67,000. <br />Armstrong Boulevard (CSAH 83) and Ramsey Boulevard (CSAH 56) each vary between two <br />and four lanes within Ramsey, but each roadway includes a segment where the forecasted 2040 <br />volume would surpass the associated planning -level capacity for a two-lane undivided <br />roadway of 10,000-12,000 (15,300 for Armstrong Boulevard and 14,100 for Ramsey Boulevard). <br />Accordingly, motorists will likely experience some congestion along these roadways during the <br />2040 planning horizon. <br />Chapter 5-Transportation (DRAFT) Page X-24 <br />Adopted XXXXXX XX, 2017 <br />