Page 83 - TransportationPlanUsetsGuide

Lane Numbers and Right-of-Way Protection
The maximum number of lanes that can be built on individual roads without a plan amendment is identified
on the Lane Numbers map included as Figure 3-10. Intersections along Arterial and Collector roads shall
be planned to include right-of-way for turn lanes within 1,000 feet of the intersections. Specific needs for
turn lanes are determined through traffic analysis conducted at the time of development and/or during the
transportation project development process (as described in, Table 3.9 : Functional Classification Design
Parameters).

Special Right-of-Way Needs
Roadways
Several in Washington County have special designations, where performance monitoring over time is neces-
sary or where additional right-of-way may be needed. These locations are described below.
• Kaiser Road – Springville Road to Bethany Boulevard: The intersections of Kaiser Road at
Bethany Blvd. and Springville Road control the operations of this segment of Kaiser Road. As
development occurs in North Bethany and throughout the region, this section of Kaiser Road
may require additional turn lanes and/or travel lanes beyond the three lane configuration identi-
fied on the TSP map.
• Saltzman Road / 130th Avenue – Laidlaw to County line: This segment of Saltzman
Road/130th Avenue represents a future opportunity for a north/south connection between
Laidlaw Road and Springville Road. This connection is classified as a twolane neighborhood
route until such time that a reclassification is warranted. Additional travel lanes, turn lanes,
bicycle facilities, and right-of-way may be required to complete the transportation grid necessary
to meet the future system needs of the traveling public. ADOPTED TEXT
• Tualatin Valley Highway – Maple Street to Cedar Hills Boulevard: As discussed in the Refine-
ment Area section later in this document, a long-term transit solution for Tualatin Valley Highway
has yet to be identified. In advance of this transit study involved jurisdictions should consider
the preservation of land for Business Access Transit (BAT)/High Capacity Transit (HCT) uses.
This land area is not intended to be used for general purpose through lanes.

Major Intersections
To a large degree, the motor-vehicle system functions only as well as its intersections. Intersections that are
expected to serve very high motor-vehicle traffic volumes pose additional challenges. Intersection design,
and the analysis necessary to support it, ordinarily is undertaken as part of a project or land development
process. The locations identified as Major Intersections are potential candidates for grade separation, ad-
ditional at-grade turn lanes and/or other intersection design solutions. Additional right-of-way in the vicinity
of Major Intersections may be needed to preserve options for long-term system needs. Major Intersections
should be evaluated with regard to the land use context and all the goals of the transportation system plan.
Particular attention should be given to multimodal system accessibility and local connectivity within the
vicinity of these intersections. The solution(s) identified should consider impacts on safety, economic vitality,
livability, and the natural environment. Major Intersections are designated at the following locations:

• 170th Avenue @ Tualatin Valley Highway 3
• 185th Ave @ Baseline Rd
• 185th Ave @ Cornell Rd
3 Improvements recommended for beyond the time frame of the TVCP

PART 3: TRANSPORTATION MODAL ELEMENTS 69
Effective November 27, 2015 • Updated December, 15 2016