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<br /> <br /> <br /> <br />Page 8 <br /> <br /> <br />Fairmont Drive Class IV Bike Lane Installation Project November 2, 2018 <br />Note that the optimized timings were calculated using a method focusing on the three study <br />intersections alone and do not account for corridor operations beyond the study segment. The <br />calculated timings are not recommended timings for the network but rather optimized timings <br />for the purpose of making an accurate comparison between the existing conditions and the <br />plus project conditions. The developed timings do not account for corridor operations beyond <br />the study segment. <br />Table 3 shows the Arterial LOS analysis results. As shown, with the current signal timings the <br />corridor is currently operating at LOS F for all peak periods in the westbound direction and <br />during the PM peak hour in the eastbound direction. With optimized timings, the network is <br />expected to operate at LOS F for all peak periods in westbound direction and during the <br />Midday and PM peak hour in the eastbound direction. <br />The degradation in operations during the Midday peak period is due to signal timing <br />adjustment. Under the current timings, the maximum split allocated to the north-south <br />movements at the Fairmont Drive/Bayfair Drive intersection is insufficient to serve pedestrians <br />(although the controller would allocate the appropriate time if the push button is pushed). The <br />optimized timings increase the maximum split for the north-south direction, which slightly <br />reduces the estimated corridor speed (by 0.2 mph) in the east-west direction. <br /> <br /> <br />Table 3: Existing Arterial LOS <br /> Current Timings Optimized Timings <br /> <br />Study Segment <br />Signal <br />Delay <br />(s) <br />Arterial <br />Speed <br />(mph) <br />Arterial <br />LOS <br />Signal <br />Delay <br />(s) <br />Arterial <br />Speed <br />(mph) <br />Arterial <br />LOS <br />AM <br />EB: Hesperian Boulevard to <br />E.14th Street 56.6 10.4 E 56.8 10.4 E <br />WB: E. 14th Street to <br />Hesperian Boulevard 66.1 9.4 F 66.1 9.4 F <br />Mid <br />day <br />EB: Hesperian Boulevard to <br />E.14th Street 59.3 10.1 E 61.5 9.9 F <br />WB: E. 14th Street to <br />Hesperian Boulevard 73.1 8.8 F 72.7 8.8 F <br />PM <br />EB: Hesperian Boulevard to <br />E.14th Street 100.0 6.9 F 67.6 9.1 F <br />WB: E.14th Street to <br />Hesperian Boulevard 67.0 9.1 F 66.8 9.1 F <br /> <br /> <br />Existing Plus Project Conditions Operational Analysis <br />DKS revised the roadway geometry in the Synchro models to test the effect of the lane <br />reduction due to installation of the proposed Class IV bike lanes. The project would reduce the <br />number of lanes from three lanes to two lanes in each direction along Fairmont Drive. Figure <br />3 illustrates the intersection geometry for the plus project conditions. These results provide an <br />approximation of expected operations. <br />171