Agenda - Council - 01/11/2022 - Laserfiche WebLink

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Trott Brook Crossing EAW Traffic Study Review January 6, 2022 7) Results of the year 2026 build capacity analysis indicate that the study intersections are expected to continue operating at an acceptable overall LOS B or better during the a.m. and p.m. peak hours. a. The side -street delays at the Nowthen Boulevard NW and Ramsey Boulevard NW intersection are expected to reach a LOS E, 39 seconds, and side -street delays at the Nowthen Boulevard NW and 167th Avenue NW intersection are expected to reach a LOS D, 29 seconds. b. Delays of this magnitude are not uncommon for side -street approaches in developing or developed areas. c. No queuing or delay issues are expected at the site access roadways for the proposed development. 8) Results of the year 2040 build capacity analysis indicate that the study intersections are expected to continue operating at an acceptable overall LOS C or better during the a.m. and p.m. peak hours. a. The side -street delays at the Nowthen Boulevard NW and Ramsey Boulevard NW intersection are expected to reach a LOS F, 86 seconds, and side -street delays at the Nowthen Boulevard NW and 167th Avenue NW intersection are expected to reach a LOS F, 57 seconds. b. No queuing or delay issues are expected at the site access roadways for the proposed development. 9) In short-term conditions there is not expected to be a need for either geometric or traffic control mitigation at the study intersections as a result of the proposed development. 10) Under long-term conditions, there could be consideration of traffic control changes or geometric improvements at the Nowthen Boulevard NW intersections with Ramsey Boulevard NW and 167th Avenue NW. a. The increase or delay at these intersections is a result of a combination of both background and adjacent development traffic and traffic related to the proposed development. As noted within the year 2040 no build conditions, side -street delays were already reaching LOS E conditions regardless of the proposed development. b. However, as noted previously, a planning level study for Nowthen Boulevard NW is being completed to determine the long-term configuration of Nowthen Boulevard NW and potential improvements will be detailed within that study. 11) A preliminary review completed as part of this study indicates that the potential improvements at 167th Avenue NW could include eastbound and westbound right -turn lanes and northbound and southbound left -turn lanes. At the Nowthen Boulevard NW and Ramsey Boulevard NW intersection, a traffic control modification to a roundabout could be considered. These improvements would reduce delays and queues to acceptable overall levels. Page 21