7.2. SR 07-06-2021 - Laserfiche WebLink

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Memorandum To: Zack Carlton, Planning Manager From: Justin Femrite, P.E., Public Works Director/Chief Engineer Date: June 17, 2021 Subject: Review of Trip Generation Study— Broadway on 10 Residential Development We are in receipt of the final Trip Generation and Distribution Study completed by Swing Traffic Solutions for the Broadway on 10 Residential Development dated June 17, 2021. We have also reviewed the concerns raised by the public during the Planning Commission hearing for the project. While there are varying opinions surrounding the project, the Trip Generation Study combines review of the proposed project with engineering standards for traffic trips and distributions. Its projections further include social behaviors surrounding most driver's preference of time savings. A 2-lane roadway has carrying capacities of 1,000 vehicles per peak hour was referenced in the study. Certainly, this volume would exceed a `livable' standard for the residents who enter and exit directly off that roadway. As a rule of thumb, a roadway can carry about 150-175 vehicles per hour (peak hour) without severely impacting its livability. Based on the proposed additional peak hour trips of the new development, combined with the existing peak hour trips, the volumes on the off -site connecting streets (Yankton and 1461h Street) are maintained in a `livable' range. Even if the study had said 85% of the new peak hour trips would be forced the other direction (say into West Oaks) the max peak hours counts would be estimated at 108 (existing) + 45 (new) = 153 vehicles per hour.