08-04-25 - City Council Work Session Agenda

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A capacity analysis was conducted for the Design Year (2045) No -Build traffic conditions at the study intersections to determine baseline conditions for the 2045 analysis year. Analysis included the upcoming background geometry changes that will be in place by the Opening Year but no further changes to geometry and control were assumed. All study intersections are anticipated to operate at LOS C or better and all intersection movements/roundabout approaches are anticipated to operate at LOS D or better. 7.3. SCENARIO 1 CONDITIONS CAPACITY ANALYSIS SUMMARY A capacity analysis was conducted for the Opening Year (2030) Scenario 1 traffic conditions at the study intersection. It was found that the addition of site traffic causes some increases in network delays compared to the Opening Year (2030) No -Build conditions. All study intersections are anticipated to operate at an overall LOS C or better and all individual movements/roundabout approaches operate at LOS D or better. Additionally, with operations remaining acceptable in Opening Year (2030) build Scenario 1, an east -west roadway connection on the south half of the AUAR site is not required from a traffic operations perspective, however, the connection of Robinson Drive (Access E) would help improve connectivity to the neighborhoods. The connection of Carl Street is not necessary from a traffic operations perspective. Under Design Year (2045) Scenario 1 traffic conditions, it was found that significant operational deficiencies could be caused by the full buildout of the proposed Scenario 1 development and mitigation measures are likely required if traffic reaches these levels. Main Street sees operational issues due to capacity constraints on eastbound and westbound traffic at the roundabouts and 41h Avenue sees severe side street delays at the intersection with Main Street. Therefore, it is anticipated that Main Street may need to be expanded to four lanes west of Lake Drive under the buildout conditions of Scenario 1 and a roundabout may be needed at Main Street & 41h Avenue. The infrastructure improvements within the AUAR site should be evaluated as development occurs on the site. Analysis of the Design Year (2045) Scenario 1 Mitigated traffic conditions indicated that with the proposed improvements in place, all study intersections are anticipated to operate acceptably. 7.4. SCENARIO 2 CONDITIONS CAPACITY ANALYSIS SUMMARY A capacity analysis was conducted for the Opening Year (2030) Scenario 2 traffic conditions at the study intersection. It was found that the addition of site traffic causes some increases in network delays compared to the Opening Year (2030) No -Build conditions. All study intersections are anticipated to operate at an overall LOS C or better and all individual movements/roundabout approaches operate at LOS D or better. Additionally, with operations remaining acceptable in Opening Year (2030) Build Scenario 2, an east -west roadway connection on the south half of the AUAR site is not required from a traffic operations perspective, however, the connection of Robinson Drive (Access E) would help improve connectivity to the neighborhoods. The connection of Carl Street is not necessary from a traffic operations perspective. Under Design Year (2045) Scenario 2 traffic conditions, it was found that significant operational deficiencies could be caused by the full buildout of the proposed Scenario 2 development and mitigation measures are likely required if traffic reaches these levels. Main Street sees operational issues due to capacity constraints on eastbound and westbound traffic at the roundabouts and 41h Avenue sees severe side street delays at the intersection with Main Street. Therefore, it is anticipated that Main Street may need to be expanded to four lanes west of Lake Drive under the buildout conditions of Scenario 2 and a roundabout may be needed at Main Street & 41h Avenue. The infrastructure improvements within the AUAR site should be evaluated as development occurs on the site. Analysis of the Design Year (2045) Scenario 2 Mitigated traffic conditions indicated that with the proposed improvements in place, all study intersections are anticipated to operate acceptably. Some minor Northwest Main - Lino Lakes, MN Traffic Impact Analysis I June 2025 Page 187 of 617