Appendix D Traffic Impact Analysis - westplainseis.com

6.1.2 ALTERNATIVE 1 – 2015 Phase 2
The traffic volumes included for this analysis include 2015 background traffic volumes plus project
Phase 2 related traffic. The volumes used for this analysis scenario are shown on Figure 16. A
summary of the LOS results are shown below in Table 14.
Table 14. Level of Service for 2015 with Project PM Peak Hour Conditions-Alternative 1
INTERSECTION
(S) Signalized
(U) Unsignalized
(R) Roundabout
Critical
Movement By
Approach
Peak hour Level of Service (LOS)
PM Peak Hour
Delay
Hwy. 2 / Craig Rd. U SB LTR * F
Hwy. 2 / Lundstrom St. U NB LTR 76.6 F
Hwy. 2 / Lawson St. S -- 22.8 C
Hwy. 2 / Garfield St. S -- 27.9 C
Hwy. 2 / Hayford Rd. S -- 80.0 E
Craig Rd. / Deno Rd. U WB LTR 11.2 B
Craig Rd. / McFarlane St. U WB LTR 18.0 C
Craig Rd. / Thorpe Rd. East U SB LR 12.5 B
Craig Rd. / Thorpe Rd. West U NB LR 10.5 B
Craig Rd. / SR 902 U SB LTR 671.9 F
Hwy. 2 / Fairchild AFB S -- 22.1 C
Craig Rd. / 6 th Ave. U WB Lt 15.0 B
Hwy 2 / Driveway West U SB Rt 18.9 C
Hwy 2 / Driveway Middle U SB Lt * F
Hwy 2 / Driveway East U SB Rt 19.6 C
Craig Rd. / Driveway North U EB Lt 16.3 C
Craig Rd. / Driveway Middle U EB Lt 14.0 B
Craig Rd. / Driveway South U EB Lt 20.2 C
* Excessive Delay
The Hwy 2 / Craig Rd., Hwy 2 / Hayford, Craig Rd. / SR 902 and Hwy 2 / Middle Dwy., intersections
are anticipated to experience a failing LOS. The minor street approach at the unsignalized intersection of
Hwy. 2 / Lundstrom is anticipated to operate at LOS F. Mitigation for these locations is identified in the
mitigation subsection at the end of the Alternative 1 section.
LOS
West Plains Development – Spokane Tribe Page | 59
Traffic Impact Analysis April 28, 2011