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Trott Brook Crossing EAW Traffic Study Review January 6, 2022 <br />• Nowthen Boulevard NW / 167th Avenue NW <br />o Side -street delay is expected to increase by approximately four (4) seconds per vehicle during <br />the p.m. peak as compared to existing conditions. <br />The remaining intersections had minimal changes to their traffic operations. Based on the year 2026 <br />no build condition operations analysis, no geometric or traffic control changes are needed to <br />accommodate the North Brook Meadow development from an intersection capacity perspective. <br />Year 2040 No Build Conditions <br />Results of the year 2040 no build conditions intersection capacity analysis shown in Table 6 indicates <br />that the study intersections are expected to continue operating at an acceptable overall LOS B or better <br />during the a.m. and p.m. peak hours with the proposed roadway geometry and traffic controls. <br />Table 6. Year 2040 No Build Conditions Peak Hour Capacity Analysis <br />Intersection <br />A.M. Peak Hour <br />P.M. Peak Hour <br />LOS <br />Delay <br />LOS <br />Delay <br />Variolite Street NW / Alpine Drive (1) <br />A/A <br />4 sec. <br />A/A <br />5 sec. <br />Variolite Street NW / 161st Avenue NW (1) <br />A/A <br />5 sec. <br />A/A <br />5 sec. <br />Variolite Street NW / 173rd Avenue NW (1) <br />A/A <br />2 sec. <br />A/A <br />2 sec. <br />Nowthen Boulevard NW / Ramsey Boulevard NW <br />A/B <br />12 sec. <br />B/E <br />43 sec. <br />Nowthen Boulevard NW / 167th Avenue NW (1) <br />A/A <br />9 sec. <br />A/E <br />48 sec. <br />Nowthen Boulevard NW / 173rd Avenue NW (1) <br />A/A <br />4 sec. <br />A/A <br />5 sec. <br />Nowthen Boulevard NW / 175th Avenue NW (1) <br />A/A <br />5 sec. <br />A/A <br />8 sec. <br />175th Avenue NW/ North Brook Meadow (1) <br />A/A <br />3 sec. <br />A/A <br />5 sec. <br />(1) Indicates an unsignalized intersection with side -street stop control, where the overall LOS is shown followed by the worst approach <br />LOS. The delay shown represents the worst side -street approach delay. <br />The delays and queuing during the a.m. and p.m. peaks hour are expected to worsen as area <br />development occurs. The following information summarizes the operational and/or queuing issues <br />that warrant consideration as traffic volumes increase. <br />• Nowthen Boulevard NW / Ramsey Boulevard NW <br />o The side -street delay in the eastbound direction is 12 seconds for the a.m. peak and 43 seconds <br />for the p.m. peak hour. The 95th percentile queues in the eastbound direction are expected to <br />be approximately 65 feet during the a.m. peak hour and 245 feet during the p.m. peak hour. <br />o Side -street delay is expected to increase by approximately five (5) seconds per vehicle during <br />the a.m. peak and 28 seconds per vehicle during the p.m. peak as compared to existing <br />conditions. <br />Page 15 <br />