Appendix D Traffic Impact Analysis - westplainseis.com

Hwy. 2 / Hayford Rd. S 2012 – Phase 1 2012 – Buildout +
Craig Rd. / Deno Rd. U + + +
Craig Rd. / McFarlane St. U + + +
Craig Rd. / Thorpe Rd. East U + + +
Craig Rd. / Thorpe Rd. West U + + +
Craig Rd. / SR 902 U 2012 – Phase 1 2012 – Buildout 2012 – Buildout
Hwy. 2 / Fairchild AFB S + + +
Craig Rd. / 6 th Ave. U 2019 – Phase 3 + +
Hwy 2 / Driveway West U + + +
Hwy 2 / Driveway Middle U 2012 – Phase 1 2012 – Buildout 2012 – Buildout
Hwy 2 / Driveway East U + + +
Craig Rd. / Driveway North U + + +
Craig Rd. / Driveway Middle U + + +
Craig Rd. / Driveway South U + + +
+ Acceptable LOS for alternative analyzed
Mitigation improvements for congested intersections are discussed in the following Recommendations
section.
Regarding bike and pedestrian facilities, there are limited facilities in the immediate vicinity of the
project site. Pedestrian facilities are provided and bikes are accommodated via the paved shoulder along
Hwy 2 east of Craig Rd. Pedestrian and bike facilities are provided along much of the roadway network
within the developed portions of Airway Heights to the east of the project site.
Transit service is provided to Airway Heights by Spokane Transit Authority (STA) via Route 61. This
route terminates within the City of Spokane at the downtown transit plaza and makes stops at the Airway
Heights Park & Ride west of Hwy 2/Lawson and within Fairchild Air Force Base, seven days a week.
During peak period busses operate with one-half hour headways and off peak periods have one-hour
headways.
Operational analysis results for the various scenarios analyzed are summarized in the tables at the end of
the Executive Summary.
Recommendations
Mitigation recommendations are summarized below for each project alternative. At locations where
traffic signalization is recommended, a signal warrant analysis was performed to aid in determining if
signalization was an appropriate improvement alternative to consider.
The off-site improvements not contiguous with the project site should be constructed in a phased manner
so that they are installed at the appropriate time and roughly corresponding to the phase of project
development being undertaken.
For off-site improvements that are not contiguous with the project site or related to site access, the
Spokane Tribe should contribute its proportional share of the cost required to construct the identified
improvements; the project proportional share was calculated by dividing the project generated traffic
volume by the total intersection traffic volume.
West Plains Development – Spokane Tribe Page | 4
Traffic Impact Analysis April 28, 2011