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John Stark, Community Development Director City of Rose vi lie November 17, 2006 Page 9 A subset of the key year 2030 base network infrastructure assumptions is as follows: o I-35W, to the west of the stndy area, is a six-lane interstate freeway facility with an auxiliary lane in each direction from TH 36 to County Road C with access to the study area via County Road D and County Road C. o TH 36 is a four-lane freeway facility with access to the study area via Snelling Avenue and Fairview Avenue. o Cleveland Avenue is a four-lane undivided arterial. o Snelling A venue is a four-lane divided expressway with turn lanes. o County Road C is a four-lane divided arterial with turn lanes. o County Road D is a two-lane undivided arterial. o Fairview Avenue is a two-lane undivided arterial n0l1h of Terrace Drive and a four-lane undivided aIierial south of Ten'ace Drive with turn lanes. The year 2030 Metropolitan Council regional model includes approved development and infrastructure improvements in the Twin Cities metro area over the next 24 years. Two adjacent redevelopment projects were taken into account when developing these ADT forecasts, the Northwestern College Expansion and the Rosedale Center Expansion. In addition, the proposed Twin Lakes Parkway connection was added to the model in order to determine its role in the transportation system. The proposed redevelopment land use scenarios were also entered into the model to generate outputs relevant to this AUAR project. The updated model was then run to determine the adjacent roadway network ADT volumes and determine the directional distribution percentages for trips originating from or destined for the Twin Lakes AUAR area. Based on forecast year 2030 ADTs, existing ADTs and trip generation estimates for the redevelopment scenarios, an annual growth rate of one-half percent was applied to the existing peak hour turning movement volumes to develop year 2030 background traffic forecasts. Figure 3 displays existing and year 2030 forecast ADT volumes. Figure 4 displays the directional distribution percentages for the redevelopment scenarios. The combination of background traffic and trips generated by the redevelopment scenarios for year 2030 build conditions are shown in Figures 5 and 6 (Scenario lA and lB, respectively). YEAR 2030 CONDITIONS To determine how well the existing and future roadway system will accommodate redevelopment of the Twin Lakes AUAR area, an operations analysis was completed for year 2030 build conditions during the p.m. peak hour at each of the key intersections. All signalized intersections were analyzed using the Synchro/SimTraffic software (version 6.14) and unsignalized intersections were analyzed using the Highway Capacity Software (and compared with Synchro/SimTraffic). The intersection improvements identified at County Road C/Snelling Avenue under existing conditions are included in the year 2030 build analysis. Results of the analysis indicate that all key intersections are expected to operate poorly (LOS F) under year 2030 Scenario IA build conditions. Twelve out of 14 key intersections are expected to operate poorly (LOS F) under year 2030 ScenaI'io lB build conditions. As stated each scenario will operate poorly without additional mitigation.