08-04-25 - City Council Work Session Agenda

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*Delay of worst movement is reported in place of overall delay at side -street stop -controlled intersections. 5.5. DESIGN YEAR (2045) SCENARIO 2 CAPACITY ANALYSIS Capacity analysis was conducted for the Design Year (2045) Scenario 2 conditions to determine the long- term effects of the proposed development. The background changes to intersection control discussed in §3.1 were included along with the addition of the proposed development access points. The Design Year (2045) Scenario 2 traffic volumes are shown in Exhibit 18. Capacity analysis results for the Design Year (2045) Scenario 2 conditions are provided in Table 4-4. Results of the Design Year (2045) Scenario 2 conditions analysis shows that with the addition of the proposed development site traffic and long-term background growth, multiple operational issues are anticipated at the study area. Similar to the results for Scenario 1, Main Street is generally expected to be over the capacity of a two-lane road and would likely need to be expanded to four lanes. The intersection of Main Street & 41h Avenue does not operate acceptably with side street stop control under Design Year (2045) Scenario 1 conditions. A roundabout is likely the best option at this intersection in the long term. The Sunset Avenue & Lilac Avenue roundabout may also see minor operational issues during the AM peak hour due to school traffic, though LOS E operations at the intersection during this time likely do not necessitate further improvements. The intersection and the Sunset Avenue corridor should be monitored closely, however, as the road is anticipated to be nearing the capacity of a two-lane road under the Design Year (2045) Scenario 2 conditions. SimTraffic and Rodel 951h percentile queueing results were reviewed, and the intersection of Main Street & 41h Avenue sees excessive side street queueing which causes operational issues at the site access points along 41h Avenue. Furthermore, severe queues are anticipated at all roundabouts along Main Street due to insufficient capacity for eastbound and westbound vehicles at peak times. ■ Northwest Main - Lino Lakes, MN Traffic Impact Analysis I June 2025 Page 180 of 617