Laserfiche WebLink
Page 9 <br />Complete Streets Evaluation – Hesperian Blvd November 9, 2018 <br />Cumulative Plus Project Conditions Operational Analysis <br />DKS revised the roadway geometry in the Synchro models to test the effect of the lane <br />reduction. Figure 5 illustrates the roadway and intersection geometry for the plus project <br />conditions. As shown in Table 7, delay and LOS would remain within acceptable limits after <br />project implementation during the AM peak period. However, operations are expected to <br />deteriorate to LOS F at the Hesperian Boulevard/Fairmont Drive and the Hesperian Boulevard/ <br />Bayfair Drive intersections during the PM peak period. Appendix 2 shows the expected queuing <br />for the Cumulative Plus Project conditions. <br />Table 8 shows the Arterial LOS analysis results. As shown, the corridor is expected to operate <br />at acceptable LOS during the AM peak period. However, it is expected to deteriorate to LOS F <br />in both northbound and southbound directions during the PM peak period. <br />As shown in Appendix 2, the project is expected to cause significant queueing, especially in <br />the northbound direction. During the AM period, northbound queues are expected to spill back <br />from Fairmont Drive past the Bayfair Drive intersection. The northbound queue from Drew Street <br />is expected to spill back past the rail road tracks to Springlake Drive. In the PM period, <br />northbound queues are expected to extend from Fairmont Drive past Drew Street. Southbound <br />queues are expected to spill back from Springlake Drive past Drew Street and from Thornally <br />Drive to Bayfair Drive. This represents a significant increase from the no project conditions. <br />Table 7: Cumulative Plus Project Delay (Seconds)/LOS <br />Study Intersection Intersection <br />Control AM Peak PM Peak <br />1)Hesperian Boulevard & <br />Fairmont Drive Signalized 51.6/D 72.9/E <br />2)Hesperian Boulevard & <br />Bayfair Drive Signalized 12.9/B 93.6/F <br />3)Hesperian Boulevard & <br />Thornally Drive Signalized 70.7/E 86.1/F <br />4)Hesperian Boulevard & <br />Drew Street Signalized 24.5/C 6.8/A <br />5)Hesperian Boulevard & <br />Springlake Drive Signalized 26.7/C 60.1/E <br />Table 8: Cumulative Plus Project Arterial LOS <br />Study Segment <br />Signal <br />Delay (s) <br />Arterial <br />Speed <br />(mph) <br />Arterial <br />LOS <br />AM <br />NB: Springlake Drive to Fairmont Drive 89.4 14.2 E <br />SB: Fairmont Drive to Springlake Drive 62.0 17.1 D <br />PM <br />NB: Springlake Drive to Fairmont Drive 254.3 7.1 F <br />SB: Fairmont Drive to Springlake Drive 140.0 10.9 F <br />482