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*Delay of worst movement is reported in place of overall delay at side -street stop -controlled intersections. <br />4.6. DESIGN YEAR (2045) SCENARIO 1 MITIGATED CAPACITY ANALYSIS <br />Based on the operational deficiencies of the network in the unmitigated scenario, the following mitigation <br />measures are recommended for the Design Year (2045) Scenario 1 conditions: <br />• Install a roundabout at Main Street & 41h Avenue <br />• Expand Main Street to 4 lanes west of Lake Drive <br />o This includes converting all roundabouts along Main Street (at Sunset Avenue, Access C, <br />and 41h Avenue) to 2x1 roundabouts. <br />• Expand Main Street & Lake Drive roundabout to accommodate northbound left -turn traffic. <br />o The roundabout is anticipated to require two northbound entry lanes, two exit lanes on the <br />west leg, and a bypass lane for the eastbound approach. <br />A Design Year (2045) Scenario 1 Mitigated capacity analysis was conducted in order to test the impacts of <br />the proposed mitigations on operations at the study intersections. The Design Year (2045) Scenario 1 traffic <br />volumes are shown in Exhibit 12. <br />Results of the Design Year (2045) Scenario 1 Mitigated capacity analysis are included below in Table 4-5. <br />With the proposed mitigations in place, all intersections and individual movements are expected to operate <br />at LOS D or better in the AM and PM peak hours. The SimTraffic and Rodel 951h percentile queueing results <br />were reviewed and all 951h percentile queues are expected to remain within their provided storage bays with <br />no significant queueing issues anticipated. Based on the results of this analysis, acceptable traffic <br />operations are expected to be maintained with the proposed mitigations in place. SimTraffic and Rodel <br />analysis reports are included in Appendix B. <br />Table 4-5: Design Year (2045) Scenario 1 Mitigated Level of Service <br />Operationsby <br />•- <br />Intersection <br />Control <br />Approach <br />AM Peak Hour <br />PM Peak Hour <br />Left Through Right <br />Overall* <br />Left Through Right <br />Overall* <br />EB <br />B (12.0) <br />B (13.8) <br />Main Street <br />Round- <br />WB <br />A (9.2) <br />B (10.4) <br />& Sunset <br />about <br />A (9.6) <br />B (13.0) <br />Avenue <br />(2x1) <br />NB <br />A (6.4) <br />C (16.7) <br />SB <br />A (5.5) <br />A (5.7) <br />Sunset <br />EB <br />WB <br />A (3.9) <br />A (4.9) <br />Avenue & <br />Side <br />Robinson <br />Street <br />Stop <br />A (3.9) <br />- (-) <br />NB <br />A (1.4) <br />A (1.1) <br />A (2.2) <br />A (1.4) <br />Drive <br />SB <br />A (0.9) <br />- <br />A (0.8) <br />Sunset <br />EB <br />WB <br />A (4.5) <br />- <br />A (6.7) <br />Avenue & <br />Side <br />Century <br />Street <br />Stop <br />A (4.5) <br />- (-) <br />NBA <br />(1.5) <br />A (0.3) <br />A (2.1) <br />A (0.6) <br />Trail <br />SB <br />A (2.0) <br />A (1.0) <br />- <br />Northwest Main - Lino Lakes, MN <br />Traffic Impact Analysis I June 2025 <br />Page 173 of 617 <br />