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T-% "ebra Bloom, P.E. City of Roseville Pw 1-il M-121 -1 Me October 29, 2007 Page 4 The traffic study makes note of the internal site circulation and access control issues on the east side of the development (near the existing Firestone auto service center). However, it 0 does not give consideration to other extenuating c , ircumstances, that exist on site. The access plan proposed on the east side of the mall near the Firestone redevelopment area appears sufficient based on the analysis results, which state that the queues extend back from the signanzed intersection and are within the storage distance allotted. However, this area could become conglestied. internal to the mall, causing motortsts to use the right-Wright-out access onto CR B (in, the northeast corner of the site) and make U-turns along CR B to head west. This U-turn maneuver will create an unsafe condition along CR B. Therefore, additional consideration should be given to relocating the, east leg further south of the internal intersection immediately adjacent to the CR B/Har Mar Mall Access (signalized) intersection. * The U-turn scenario discussed in the previous bullet highlights the importance of closing the right-inlright-out access located along CR B, approximately 300 feet east of Snelling Avenue. Although the potential exists for the south leg of the CR B/Har Mar Mall access (S4 ignalized) intersection to become congested, the unsafe condition of the potential U-turns 0 11 It � along CR B necessitates Chi's access closure. Typical County access spacing guicennes 0 41 throughout the Twin Cities preclude these types of access, points along m - inor arterial/major collector county roads with average daily traffic (ADT) volumes greater than 7,500 trips per day (typical location is 1/8 mile — 660 feet), All documentation should clearly state that this access will be closeld under future redevelopment alternatives. * On the west side of the mall, there is' tight circulation adjacent to the previous walk-in bank location (proposed for redevelopment as a sit-down restaurant) and conflicting parking orientation (Lie. 190-degree parking on the east and angled parking on the west side of the drivie aisle). This 'I's confusing to drivers, and may result 'in an unsafe condition. This inconsistent Parking configuration should be modified as part of the site redevelopment. Conclusions and Recommendations Based on our review of the proposed Har Mar Shopping Center traffic study submitted by Wenck Engineering on September 12, 2007, the following comments and recommendations are offered for your cons ideratioll: 0 Although daily traffic volumes have remained steady over the past five years in the area it is not reasonable to assume zero background growth for future traffic analysis during peak hour conditions. It is reco�mmended that at least a one-half percent growth rate be applied to the adjacent background street traffic.. The trip generation estimates used for future analysis should be modified to develop a better balance between the underutilized existing mall trip generation and the potential revitalized mall trip generation. All assumptions shall be confirmed by City staff or as directed by City ''s staff consultants. This overall trip generation consultation will clarify the other issues discussed above as part of the trip generation estimates.