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Kittitas County I Snoqualmie Pass ComprehensWe Safety Plan 34 <br />Volume I Speed Trends <br />In addition to reviewing collision data, <br />the project team analyzed traffic volume <br />and speed data to better understand <br />current roadway conditions and evaluate <br />how capaciry constraints may affect <br />the performance and safety of the <br />transportation network in Snoqualmie <br />Pass. <br />Traffic volume and speed data were collected <br />at multiple locations throughout Snoqualmie <br />Pass to evaluate roadway and intersection <br />performance. Tube counters were installed at <br />midblock locations along SR 906, while turning <br />movement counts (TMCs) were collected at <br />key intersections. Data was collected in two <br />periods to capture seasonal travel patterns: <br />October 16th to 27st,2O24, and February 14th <br />to 17th, 2025 (Presidents' Dayweekend). The <br />October data provided a baseline for non-winter <br />conditions while the February data captured <br />winter conditions during expected peak winter <br />activity. Field observations were also made on <br />December 37st,2024 and January !st,2025 to <br />review conditions during the busy winter holiday <br />season. Figure 19 shows the locations where <br />tube counters and TMC cameras were installed. <br />I <br />Iw <br />+b <br />,*.oci <br />9 <br />o <br />o <br />Ial' <br />^o.'U <br />\c' <br />of <br />--.1 <br />9. <br />nq <br />9ro <br />.at- <br />I <br />I <br />I <br />I <br />I <br />l <br />I <br />I <br />) <br />I <br />I <br />I <br />I <br />. o,* ^e^1o o-Cc" ^t.-rc b..\- e <br />{@ <br />r.tk <br />lanner <br />qot^ <br />,% <br />a <br />ca <br />ee <br />t <br />/_ <br />Lake <br />\\\t\'Garrnisc.h p1\, lron Horse <br />I <br />I <br />I <br />I <br />Q( <br />Figure 19. Count <br />Collection Locations <br />Source: Fehr & Peers,2025- <br />I rvc <br />C tuo" <br />Study Area <br />[---'1 county t-in" <br />a <br />UI <br />o <br />o <br />:f <br />Keechelus <br />Lake <br />Exit 52 EB Off Ramp <br />& sR 906 <br />SR 906 & Guye <br />Peak Lane <br />sR 906 <br />sR 906 <br />Exit 53 l-90 WB <br />Ramp & Yellowstone <br />Trail Road <br />Exit 54 EB Off Ramp <br />& Snoqualmie Drive <br />Hyak Drive E <br />sR 906 & <br />sR 906 <br />sR 906 & <br />Tanner Way <br />Exit 54 l-9O WB <br />Ramp & Lake <br />Mardee Road <br />lake Mardee Road <br />Hyak Drive E <br />ov,v,EMilss <br /> o