05-05-21 Planning Commission - Laserfiche WebLink

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Chick-fil-A - Arden Hills, MN | Traffic Study March 26, 2021 Page 13 x Lexington Avenue/Red Fox Road: o Eastbound left-turn queues may extend beyond the Chick-fil-A west site access approximately 50 percent of the p.m. peak hour, potentially blocking the access for very brief periods of time. x Red Fox Road/Chick-fil-A East Site Access: o Chick-fil-A generated eastbound left-turning traffic entering at the east site access (very modest forecast volumes) would operate at a LOS B or better and not experience significant delay since (as observed in the traffic simulation) there would be adequate acceptable gaps in the westbound traffic flow on Red Fox Road to complete this left-turn. x Red Fox Road/Chick-fil-A West Site Access: o Chick-fil-A generated southbound left-turning traffic exiting at the west site access would operate at a LOS C or better and not experience significant delay since (as observed in the traffic simulation) there would be adequate acceptable gaps in the traffic flow on Red Fox Road to complete this left-turn either before blocking queues develop or after they clear. o Southbound left-turning traffic exiting the site at the west site access would develop an average queue of two vehicles and a maximum queue of four vehicles. Site Plan Review A review of the proposed site plan (see Figure 4) was completed to identify any issues and recommend potential improvements in regard to access, circulation, and parking. In general, the following should be considered when designing internal traffic controls and roadways: x Incorporate traffic controls, signing, and striping based on guidelines established in the Manual on Uniform Traffic Control Devices (MUTCD) x Special consideration should be made to limit any sight distance impacts from future structures, landscaping, and signing. Access to the development is proposed at the general location of the two existing site access driveways on Red Fox Road. The East Site Access driveway will operate as an “Enter Only” (due to its proximity to Lexington Avenue) with the West Site Access driveway operating as an “Exit Only”. Proposed on-site parking, traffic circulation, signing and traffic control appear generally reasonable and well configured. The west site access approach to Red Fox Road may infrequently and for very brief periods of time, experience minor congestion from southbound left-turning traffic exiting the site (average queue of two and a maximum queue of four vehicles exiting the site at Red Fox Road). The maximum drive-thru queue of 30 vehicles and average drive-thru queue of 15 vehicles were estimated based on observations at a Chick-Fil-A in St. Louis Park, Minnesota. Results indicate that the proposed 40-vehicle drive-thru queue capacity will adequately provide for the expected queues.