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1.0 INTRODUCTION/BACKGROUND The purpose of this study is to examine traffic flows and impacts associated with the proposed Rosewood Corporate o 5W rand THnter to 36/280 be located interchange nthe northwest in Roseville, quadrant of the In 3 Minnesota. This study builds upon an area -wide study prepared by Barton-Aschman Associates, Inc, in Janaury 1983, which assumed new development in the TIF (Tax Increment Finance) District west of 135W and several Coutry Road B2 bridge alternatives over 135W• A subsequent bridge design study by Short- Elliott-Hendricksen, Inc. relied also upon the Barton-Aschman study, but assumed a somewhat higher ADT (Average Daily Traffic) volume over the bridge to ensure a larger factor of safety and useful bridge lifetime. Since purpose of the Barton-Aschman study was somewhat different than that of this study, detailed future traffic flows with and without the Rosewood Corporate Center at critical intersectons i Aschmanenot study provided. and to developefore, it detailed was necessary to expand upon the Barton "build" and "no -build" traffic movements on streets and intersections throughout the study area. This also involved updated trip generation estimates for the proposed atributdCorporate Center as well as ion developed by Barton1Aschman has been trip assignments. The trip di assumed here as a basis for the preliminary traffic evaluation. Following development of predicted traffic volumes (assuming full development by 1990), four intersections most heavily impacted by traffic moving to and from the Rosewood Corporate Center were evaluated, using a computerized capacity model. The results of this model show where potential capacity problems might occur, given the assumptions of the study. TheE -esults also show where certain trip distribution and assignment assumptions may be unrealistic, especially in light of possible perceived congestion at some intersections. This report is organized as follows: SECTION 2.0 presents TRIP GENERATION for the Rosewood Corporate Center as well as other TIF developments assumed in the Barton-Aschman report. SECTION 3.0 discusses the TRIP DISTRIBUTION/ASSIGNMENT methodology used in this report. SECTION 4.0 presents ADT and AM/PM PEAK HOUR TRAFFIC projections for the "build" and "no -build" scenarios (i.e. with and without the Rosewood Corporate Center). SECTION 5.0 presents estimated INTERSECTION MOVEMENTS for four critical intersections in the study area. SECTION 6.0 presents results of the computerized TRAFFIC CAPACITY ANALYSIS at these intersections and identifies potential problems and solutions. SECTION 7.0 discusses issues related to a possible FREEWAY "SLIP -OFF" RAMP from the 135W and TH 280 connecting roadway and procedures to be followed should this be a feasible concept.