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PC Agenda and all materials 7-7-25PLANNING COMMISSION AGENDA – July 7, 2025 City of Tigard | 13125 SW Hall Blvd., Tigard, OR 97223 | 503-639-4171 | www.tigard-or.gov | Page 1 MEETING DATE: July 7, 2025 - 7:00 p.m. HYBRID MEETING IN-PERSON: City of Tigard – Town Hall SW HALL BLVD 13125 SW Hall Blvd., Tigard, OR 97223 MS TEAMS: https://www.tigard-or.gov/virtualPC 1. CALL TO ORDER 7:00 p.m. 2. ROLL CALL 7:01 p.m. 3. COMMUNICATIONS 7:02 p.m. 4. APPROVE DRAFT MINUTES 7:10 p.m. a. June 3, 2025 5. RIVER TERRACE 2.0 COMMUNITY PLAN UPDATE – TRANSPORTATION PLAN 7:15 p.m. Sr. Planner Brittany Gada 6. OTHER BUSINESS 8:15 p.m. Assistant Director of Community Development Schuyler Warren 7. MOTION FOR ADJOURNMENT 8:30 p.m. City of Tigard P lanning Commission Agenda PLANNING COMMISSION Minutes – June 2, 2025 City of Tigard | 13125 SW Hall Blvd., Tigard, OR 97223 | 503-639-4171 | www.tigard-or.gov | MEETING DATE: June 2, 2025 - 7:00 p.m. HYBRID MEETING IN-PERSON & MS TEAMS 1. CALL TO ORDER President Jackson called the meeting to order at 7 p.m. 2. ROLL CALL Present: President Jackson, Vice-President Miranda (remote), Commissioner Bowerman, Commissioner Brandt, Commissioner Sabbe, Commissioner Tiruvallur, Commissioner Murphy, Alt. Commissioner Sprague. Excused: Commissioner Choudhury, Commissioner Schuck. CC Liaison Present: Council President Wolf, Councilor Schlack. Staff Present: Assistant Director of Community Development Schuyler Warren, Senior Planner Brittany Gada, Associate Planner Trin Miller, Planning Commission Secretary Joanne Bengtson. 3. COMMUNICATIONS None. 4. APPROVE DRAFT MINUTES President Jackson noted his request for minor language clarification around voters present in the February 3rd minutes and for the hearing that night. He asked Commissioners for other corrections and hearing none, asked for a motion to approve the May 5, 2025, minutes. Commissioner Bowerman motioned to accept the minutes with noted edits and Commissioner Murphy seconded. President Jackson called for a vote and the motion passed unanimously. (7-0) 5. RIVER TERRACE 2.0 COMMUNITY PLAN UPDATE – HOUSING PLAN Assistant Director of Community Development Schuyler Warren introduced Sr. Planner Brittany Gada who will lead the River Terrace 2.0 (RT2.0) community planning effort. Sr. Planner Gada presented an overview of the RT2.0 housing plan, an update on the project schedule and engagement efforts undertaken. The draft housing plan lays out a high-level approach for delivering on the ambitious housing goals and policies first identified during concept planning. The draft housing approach aims for 20 dwelling units per acre for at least 3,000 homes, with integrated market-rate and regulated affordable housing stock, strategies for facilitating affordable homeownership, a plan to integrate housing with natural resources, parks, and commercial areas and complementary strategies that support financial, programmatic, and regulatory needs of regulated affordable, small-scale and large-scale developers to encourage development feasibility. In this phase, work focused on refining goals and objectives that once finalized, will form the base of the City of Tigard P lanning Commission Minutes 1 PLANNING COMMISSION Minutes – June 2, 2025 City of Tigard | 13125 SW Hall Blvd., Tigard, OR 97223 | 503-639-4171 | www.tigard-or.gov | RT2.0 Community Plan and amendments to the Community Development Code. The housing plan includes policies, and a regulatory approach garnered from robust public engagement:  A Community Advisory Committee (12 Tigard residents with a broad range of lived experience focused on housing types to allow and prioritize, density ideals and accomplishing a mix of housing & affordability),  A Technical Advisory Committee (comprised of different jurisdictional and agency partners like Washington Co., King City and Clean Water Services, focused on housing issues, density considerations and a housing mix approach) and,  A Housing Advisory Committee (15 housing professionals local to the area - developers, real estate professionals and finance experts discussing housing feasibility challenges in developing the area according to a concept plan and housing objectives that achieve the desired housing mix and density.). The Community committee wants RT2.0 to include a wide variety of housing types and price ranges to meet everyone’s needs. Development should balance preservation of natural resources with density in areas with good vehicular access, shared green space, and be close to parks and within walking distance of commercial areas. Regulated affordable housing providers with the Technical committee would like to see less common housing types in RT2.0, integrated with market-rate housing development. They strongly support transit through the area, and a walkable community with a wide range of prices so households of all sizes and incomes have an opportunity to live in RT2.0. Housing professionals emphasized a need for surety in planning with clear development rules, streamlined and efficient processes, strong incentives from the city, opportunities for design flexibility and the ability to place density hubs around commercial areas, which is more financially feasible for them. Mitigating risk, especially financial risk, is of utmost importance, especially for small-scale developers approaching new housing types. The ability to get financing is also a concern when planning less common housing types. Few developers build a range of housing types, favoring one style, produced efficiently. Sr. Planner Gada described challenges and efforts to strike a balance between what the community wants and what developers find economically feasible. 2 PLANNING COMMISSION Minutes – June 2, 2025 City of Tigard | 13125 SW Hall Blvd., Tigard, OR 97223 | 503-639-4171 | www.tigard-or.gov | The team also conducted Focus Groups - connecting with 10 Spanish speaking participants who reside in Tigard, and a second group with eight high school students involved with the Tigard Youth Advisory Council and the Tigard High School Future Business Leaders group. Both groups discussed a broad range of topics - transportation, parks, housing density and increasing needed housing. A third focus group is planned for late June or early July that will connect with residents and staff of a local affordable housing development in Tigard. Sr. Planner Gada said staff submitted the draft housing plan to the Department of Land Conservation and Development (DLCD) for a grant opportunity and was awarded funding that will help the city partially fund housing work. The next step will discuss the draft housing plan with City Council on June 10, 2025. The team will continue gathering community feedback to refine and finalize the Housing Plan so we can begin drafting code amendments and plans. The project continues to be on track for consideration of adoption in the fall of 2026. At the next Planning Commission Meeting on July 7, staff will provide a RT2.0 Transportation Plan Update. Commissioner K7 asked what developers mean by “surety”. Sr. Planner Gada said it means they can enter into preliminary agreements for development, purchase land, start drafting conceptual designs with a certain understanding of what the rules mean to successfully deliver their project, even if it needs to shift along the way to meet the rules. Vice President Miranda said, “I’d like there to be stronger guidelines or a decision tree to guide the commission on public benefit as I have perceived the process to have been very subjective previously.” Asst. Director Warren replied that the development code is worded broadly (purposefully) in terms of what could be offered as a public benefit because every development is unique, and a planned development is typically of a scale that it's difficult to anticipate every public benefit that could arise. This gives discretion to weigh the factors on the public benefit versus the flexibility that's being granted. Staff will work with the Planning Commission to revisit plan development criteria in general to learn what the commission would like to see. V.P. Miranda also spoke to accessibility around incentivizing elevators to create more single level living. Schuyler said the city doesn’t have a plan for this as elevators are generally considered for buildings with three or more stories and it’s an expensive feature that wouldn’t pencil out for builders. 3 PLANNING COMMISSION Minutes – June 2, 2025 City of Tigard | 13125 SW Hall Blvd., Tigard, OR 97223 | 503-639-4171 | www.tigard-or.gov | Commissioner Murphy asked what type of deliverable can the Commission expect with the finalized housing plan? Sr. Planner Gada would be a document, which would be used to work on code and other elements. Commissioner Bowerman asked what kind of incentives developers look for in Tigard. Schuyler said in the Vertical Housing Development Zone, they sought tax benefits or exemptions. Depending on the developer, the ‘asks’ are different. Affordable housing developers want land banking which involves the city setting aside land for them and releasing it through an RFP. They also want the city’s continued policy of SDC exemptions and tax abatements for affordable housing. Building around a walkable neighborhood is especially attractive with affordable housing because the high cost of owning a vehicle can extend to affordable transportation. It doesn’t make sense to build affordable housing far from the jobs and services that residents rely upon. Market Rate developers work in an area where they're not necessarily concerned about incentives although they’re happy to take them where available. Regardless of the type of developer, they want incentives to fit seamlessly within their process. The subject of Land Trusts and their ability to build or impact/prioritize affordable housing came up. Schuyler said Proud Ground, the community Land Trust doing most work in our area does some bespoke development of their own, but after one project in Portland they stepped away – the work was too far outside of what they felt was their core capacity. Commissioner Brandt asked what the city considers a short-term rental time period in relation to ADUs that receive an SDC exemption. Schuyler said tenancy of 30 days or more, is considered a long-term rental and is treated differently than a short-term rental. Not just under our code, but under state law, you are afforded certain rights and privileges as a tenant. The prohibition on renting an accessory dwelling unit (that received an SDC exemption) as a short-term rental is specifically because those exemptions were offered as an incentive to provide more housing units for community members, not to support short-term visitor rentals. Commissioner Sabbe expressed concern about the complete lack of ADA parking with construction of new 2-story cottage clusters on Bonita. Schuyler understood her concern, but said the issue is stalled between regulatory frameworks. The Americans with Disabilities Act enforces accessible spaces governed by the state building code. The building code was written so that the number of required ADA spaces is based on the number of required conventional spaces. When the state laws for minimum parking requirements changed, it eliminated the trigger for requiring ADA spaces. We still can require them based on the number of spaces that a developer proposes for some types of development, but not all. Cottage clusters are a good example of this challenge. It will take state reform before we can act, because the city can’t place standards in our building code that are more strict than the state's building code. Tigard, along with other jurisdictions, notified the state about this issue and the Land Conservation and Development Commission is aware it needs correcting, they just haven’t proposed anything yet. There was a question about Tigard getting into the business of land banking. Schuyler replied the city has no capacity to do land banking – land prices per acre are very expensive, especially with the development potential surrounding RT2.0. The scale at which the city could participate is extremely limited because funds are incredibly limited. To attempt it would require a public private partnership of some kind, or a generous grant from someone like the Bloomberg Foundation. 4 PLANNING COMMISSION Minutes – June 2, 2025 City of Tigard | 13125 SW Hall Blvd., Tigard, OR 97223 | 503-639-4171 | www.tigard-or.gov | Commissioner Brandt asked whether we have an MOU with TriMet for bus service in RT2.0. Sr. Planner Gada and Schuyler said we've been working with TriMet since the concept plan, but they are not going to commit to a service line expansion prior to development of the area. They want the ridership to be there before they commit. They recently adopted a Forward Together service expansion plan that includes a route that terminates and turns around at Mountainside High School, the doorstep of this community. 6. Tigard HOME Kick-off UPDATE Assistant Director Schuyler Warren introduced Associate Planner Trin Miller who is leading Phase II of the Tigard Housing Opportunity, Mobility and Enterprise (HOME) project. This is Trin’s first presentation to the Commission; she came to us from Florida and joined the city team in December. We’re lucky to have her! The purpose of this project is to deliver policy and code amendment recommendations for Tigard’s residential neighborhoods intended to encourage flourishing, self-contained communities where housing, economic and entertainment options are easily accessible to a wide variety of mobilities - walking, biking, and rolling. Assoc. Planner Miller shared that the project was awarded a $95,000 grant from Metro to support the Interactive Community Engagement Plan and to engage with persons traditionally not reached through long range planning processes. This funding will augment the project’s robust public engagement plan. Public engagement for long range planning projects in Tigard has consistently indicated that residents desire more amenities within walking distance of their home, more freedom regarding how they use their home or property, more straightforward processes for sharing goods/services they make with their neighbors, and more attractive and safe pedestrian connections with access to commercial amenities, work or services. Those connections will allow residential neighborhoods to carry some of our jobs burden by exploring ways that commercial activity can appropriately fit on a neighborhood scale. Following Council’s 2022 adoption of new Urban Livestock Regulations - built by staff and community members in Phase I of the HOME project, staff began community outreach efforts for Phase II. Amendments to planned districts such as the Tigard Triangle and Washington Square and mixed-use districts are not included, although emergency needs could be addressed if deemed necessary. Phase II of the HOME project is focused on economic activity within our residential zones. We are currently developing an engagement plan utilizing multiple strategies to connect with the community. Engagement will be the heart of the Tigard HOME project moving forward, with a push to meet community members where they are, through community-based outreach. We want to reach out to historically marginalized Tigard residents to talk about project specific issues and gain valuable input that reflects the diversity of our community. The success of the Tigard HOME project will rely on effective community engagement, grant funding from Metro, and the city's committed funding to support creative engagement with Tigard community members who typically do not have their voice heard. The city has contracted two consultants to execute our engagement plan. Zen Associates was selected as the Community Engagement Consultant for their engagement strategy and experience using communication strategies to foster social change and empower historically marginalized communities. Their project team will partner with up to six community-based organizations/leaders with established trust with our priority 5 PLANNING COMMISSION Minutes – June 2, 2025 City of Tigard | 13125 SW Hall Blvd., Tigard, OR 97223 | 503-639-4171 | www.tigard-or.gov | audiences and collaborate with each group to design relevant activities aligned with their established networks (focus groups, interviews, hands-on activities, etc.). The Zen Associates team will assist the project team with conducting four, pop-up events in neighborhoods with high traffic locations where we'll utilize incentives to attract participation and interactive displays with engaging visuals to help residents envision the possibilities of introducing commercial activity at a neighborhood scale. Our second consultant is First Forty Feet, who will serve as the Urban Design Storyteller. They’ll create graphic visualizations of potential Tigard HOME solutions. Professional graphics significantly contribute to a discussion of complex ideas and consensus building with our residents, even across language barriers. To accomplish Tigard HOME goals, the community needs to be able to see potential solutions and how they could work at a neighborhood appropriate scale. Assoc. Planner Miller invited the Commission to the summer engagement series launch- a Community Development Get Together on Wednesday, June 18, from 5 to 7 p.m. in Universal Plaza. We’ll reintroduce HOME to the community and expect we’ll continue work throughout 2026. Phase II of HOME engagement efforts will seek to build community trust and empower residents to talk about planning issues and how planning connects to their lives. Gathering community feedback and ideas will help the team shape proposed HOME zoning codes and create better neighborhoods for everyone. Assoc. Planner Miller asked if there were any questions she could answer. Alt. Commissioner Sprague shared her excitement for this project and the possibilities for connecting with neighbors. Commissioners were looking forward to the addition and availability of community bakeries, convenience stores, goods and services without parking lots. Something that builds a sense of community not found elsewhere in River Terrace. The addition of a makerspace was suggested for residents without a shed or backyard space to do small hobby carpentry or woodworking projects, whether it's refinishing furniture or building a bookshelf. When asked about the tools Tigard HOME would use to effect change, are they similar to the Tigard MADE project that embraced zoning and code changes? Trin replied that the set of deliverables for HOME will likely be a set of recommendations for both policy and code amendments, but the team remains very open to community input steering the ultimate direction of this project. 7. OTHER BUSINESS Asst. Director of Community Development Warren mentioned a few updates:  The new City Manager Brent Stockwell. started today. Community Development will take him on a tour tomorrow of notable places and projects for Community Development, including the Tigard Triangle, downtown, River Terrace 1 and 2.0.  Schuyler provided a couple of Oregon Legislature updates – SB974 is coming for vote and could take certain types of decisions away from planning commissions rather than providing guidelines on decisions work program going forward. One provision would prevent cities from applying design standards to any development of over 20 dwelling units, unless that development is an apartment. It would impact the outcomes of River Terrace 2.0, where through the community planning process, the city will be developing a set of design standards that are intended to improve the livability of the area.  The other big housing bill is the governor's marquee housing bill, HB2138. It's likely to come up for a floor vote and although the city met early on with the Governor's office to provide some direction and guidance to in crafting the bill, not all our requests were incorporated. Another change is the bill would prohibit transportation impact analysis for housing developments. 6 PLANNING COMMISSION Minutes – June 2, 2025 City of Tigard | 13125 SW Hall Blvd., Tigard, OR 97223 | 503-639-4171 | www.tigard-or.gov |  One bill we support along with some other cities, is a change in state law that would allow expedited land divisions. It would include the middle housing land divisions and allow consolidation of middle housing with a subdivision making a more streamlined process. 8. MOTION FOR ADJOURNMENT President Jackson received a motion to adjourn from Commissioner K7, seconded by Commissioner Brandt. Commissioners voted unanimously to adjourn the meeting at 8:46 p.m. Joanne Bengtson, Planning Commission Secretary ATTEST: President Nathan C. Jackson 7 River Terrace 2.0 Transportation Update Tigard Planning Commission July 7, 2025 Presentation Topics RT 2.0 Transportation Update •Transportation deliverables overview •Engagement update •Draft transportation network •Tile Flat Extension Scenarios Evaluation Feedback requested on a preferred network scenario. Transportation Deliverables Overview RT 2.0 Transportation Deliverables 1.Preliminary transportation networks 2.Tile Flat Extension Scenarios Analysis 3.Final transportation network 4.Street designs 5.Infrastructure project list and cost estimates 6.Transportation System Plan Amendment RT 2.0 Transportation Update Engagement Update Transportation Outreach •Public Open House (Apr. 2025) •Advisory Committees: •CAC meeting #2 (Oct. 2024) •CAC meeting #5 (Mar. 2025) •TAC meeting #3 (Apr. 2025) •Focus Groups (Apr. 2025): •Spanish-speakers •Students •More to come! Engagement Update What we’ve heard so far Transportation Outreach •Prioritize comfort and safety for walkers and bikers •Minimize impacts to natural areas •Connected pedestrian and bike network, including trails •Public transit is a top priority. •Some facilities in the area feel like a barrier to walking and biking, need for alternatives •Most will still need cars but prefer the option to walk or bike to nearby destinations. Draft Transportation Network Draft Street Network Draft Active Transportation Network Tile Flat Extension Scenarios Evaluation Background & Scope •Identified as a special study area in RT2.0 Concept Plan •Tile Flat extension identified in County studies and plans •More analysis needed to study alternatives and compliance with regional and state rules •Scoped as a holistic analysis of scenario performance, benefits, and impacts Tile Flat Extension Scenarios Evaluation Scenario 1 Tile Flat Extension Scenarios Evaluation Scenario 2 Scenario 3 Tile Flat Extension Scenarios Evaluation Scenario 4 Evaluation Metrics 1.Vehicular Network •Vehicle Miles Traveled •Quantity of Travel •Intersection Capacity •Travel Time 2.Multimodal Network •Bicycle Level of Traffic Stress •Pedestrian Level of Traffic Stress •Connectivity •Vulnerable Road User Safety •Future Transit Service 3.Environmental / Livability •GHG and Emissions •Natural Resource Impacts •Livability Impacts of Regional Vehicle Trips Tile Flat Extension Scenarios Evaluation 4.Development Feasibility •Support to Commercial Areas •Land Use and Development Feasibility •Order-of-Magnitude Infrastructure Costs •Timing, Phasing, and Project Cost •Fire, Life, Safety 5.Equity •Equitable Benefits Evaluation Findings Scenario 1: •Lowest cost and natural resource impact •Supports commercial and transit •Mostly local traffic on RT2.0 streets (92% local) •Sufficient connectivity but less than other scenarios Scenario 2: •Better connectivity to Vandermost •Highest cut-through traffic (47% local) •Increases vehicles on surrounding network •Approx. double the cost with greater resource impacts Scenario 3: •Better connectivity to RT1.0, RT2.0 South, and Kingston Terrace •Higher cost and natural resource impacts •More cut-through traffic (62% local) Scenario 4: •Best internal and regional connectivity •Highest cost, impact to resources, traffic volumes, emissions Tile Flat Extension Scenarios Evaluation Recommendation Staff and consultants recommend Scenario 1. July 15th City Council transportation update •Will request Council direction on a preferred scenario •Request Commissioners’ feedback on a preferred scenario to share with Council Tile Flat Extension Scenarios Evaluation To: Planning Commissioners From: Brittany Gada, Senior Planner Schuyler Warren, Assistant Director of Community Development Re: July 7th River Terrace 2.0 Transportation Update Date: June 30, 2025 This memorandum accompanies the materials for the River Terrace 2.0 transportation update scheduled during the July 7th Planning Commission meeting. During the meeting, staff will provide a brief general transportation update followed by a discussion of the potential extension of Tile Flat Road through the River Terrace 2.0 neighborhood. Specifically, the update will discuss the draft Tile Flat Road Extension Scenarios Analysis, dated June 10, 2025, prepared by the River Terrace 2.0 transportation consultants, Toole Design and DKS Associates. The materials provided for this discussion include the following documents: • Tile Flat Extension Scenarios Evaluation Summary • Tile Flat Extension Scenarios Evaluation Technical Analysis • Tile Flat Extension Evaluation Matrix Due to the extensive information provided in these documents, staff recommend that the Commissioners prioritize reviewing the evaluation summary as it provides an overview of the four Tile Flat Road extension scenarios and the performance metrics used to assess them. The summary also synthesizes the results of the technical analysis and the information in the evaluation matrix. The summary also includes the joint staff-consultant scenario recommendation based on the results of the technical analysis. If time permits a more in-depth review of the materials, the technical analysis and the evaluation matrix are also provided. The technical analysis details the methodologies used to assess the four scenarios and includes complete evaluation results. The evaluation matrix consolidates the methodology information and results from the technical analysis into a color-coded matrix. The July 7th transportation update to the Planning Commission precedes the transportation update that will be presented to City Council on July 15th during which staff will be requesting direction from the Council on the Tile Flat extension scenarios. As such, during the July 7th meeting, staff will be requesting that the Planning Commission provide feedback to staff on whether there is a preferred Tile Flat extension scenario that should be incorporated into the River Terrace 2.0 street network. Staff will share the Planning Commission’s feedback with Council. Although no formal vote is required, the Commission could opt to take a straw poll or vote on a scenario if a consensus is not reached. Page | 1 MEMORANDUM DATE: June 10, 2025 TO: River Terrace 2.0 Project Management Team FROM: Adrian Witte, Toole Design and Kevin Chewuk, DKS Associates SUBJECT: River Terrace 2.0 Community Plan Tile Flat Extension Scenarios Evaluation – Summary #24434-000 This memorandum summarizes the multimodal transportation analysis methodology and findings for the evaluation of Tile Flat extension scenarios as part of the River Terrace 2.0 Community Plan. Included are the objectives of the study, a summary of the primary street network and Tile Flat extension scenarios, the performance metrics used to compare scenarios, and the results of the analysis, which will be used by staff to identify a recommendation for decision makers moving forward. STUDY OBJECTIVES The objective of the study is to compare holistic benefits, impacts, and costs of the different primary street network scenarios and to understand and quantify if there are additional benefits to extending Tile Flat Road or Mountainside Way beyond providing the base network identified in the River Terrace 2.0 Concept Plan. TILE FLAT EXTENSION SCENARIOS The team identified four primary street network scenarios to be evaluated within the River Terrace 2.0 Community Planning process – two of these extend Mountainside Way without a connection to Tile Flat Road and two include an extension of Tile Flat Road to meet Mountainside Way. All scenarios provide a primary north to south collector route along Mountainside Way connecting from Scholls Ferry Road and running west of and eventually connecting to Roy Rogers Road at the Bull Mountain Road intersection and/or areas further south. This scenario is identified as Scenario 1. The conceptual alignments of the primary streets for each of the four scenarios are shown on Figure 1 through Figure 4, although the alignments could be shifted to better serve the surrounding neighborhood or provide other system benefits (e.g., to reduce costs, lessen impacts to sensitive lands, provide better connectivity, etc.). The Tile Flat extension scenarios include: Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 2 • Scenario 1: Includes the Mountainside Way extension from Scholls Ferry Road to the Roy Rogers Road / Bull Mountain Road intersection (Segment A) and is shown in red on Figure 1. • Scenario 2: Includes Segment A, plus the Tile Flat Road extension from Scholls Ferry Road to the Mountainside Way extension (Segment B) and is shown in green on Figure 2. • Scenario 3: Includes Segment A, plus the extension of Mountainside Way from Bull Mountain Road to connect with Roy Rogers Road somewhere at or between the Perth Road or Woodhue Street intersections (Segment C) and shown in blue on Figure 3. • Scenario 4: Includes Segments A, B and C and is shown in purple on Figure 4. Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 3 FIGURE 1 : TILE FLAT EXTENSION SCENARIO 1. SW Lasich Ln SW Bull Mtn Rd SW Beef Bend Rd SW Roy Rogers Rd SW Scholls Ferry Rd SW Jean Louise Rd SW Woodhue St SW River Terrace Blvd SW Vandermost Rd SW Clementine St A A Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 4 FIGURE 2 : TILE FLAT EXTENSION SCENARIO 2. SW Lasich Ln SW Bull Mtn Rd SW Beef Bend Rd SW Roy Rogers Rd SW Scholls Ferry Rd SW Jean Louise Rd SW Woodhue St SW River Terrace Blvd SW Vandermost Rd SW Clementine St A A SW Tile Flat Rd B B Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 5 FIGURE 3 : TILE FLAT EXTENSION SCENARIO 3. SW Lasich Ln SW Bull Mtn Rd SW Beef Bend Rd SW Roy Rogers Rd SW Scholls Ferry Rd SW Jean Louise Rd SW Woodhue St SW River Terrace Blvd SW Vandermost Rd SW Clementine St A A SW Mountainside Way C Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 6 FIGURE 4 : TILE FLAT EXTENSION SCENARIO 4. SW Lasich Ln SW Bull Mtn Rd SW Beef Bend Rd SW Roy Rogers Rd SW Scholls Ferry Rd SW Jean Louise Rd SW Woodhue St SW River Terrace Blvd SW Vandermost Rd SW Clementine St A A SW Mountainside Way C SW Tile Flat Rd B B Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 7 PERFORMANCE METRICS The Tile Flat extension scenarios were compared using the performance metrics shown below. These include a mix of quantitative and qualitative considerations. Wherever possible, findings were communicated in terms of resident and traveler experiences, with a focus on identifying meaningful differences between scenarios. The complete results of the analysis are included in the full evaluation memorandum attached to this summary. 1. Vehicular Network A. Vehicle Miles Traveled (VMT) B. Quantity of Travel C. Intersection Capacity D. Travel Time 2. Multimodal Network A. Bicycle Level of Traffic Stress (BLTS) B. Pedestrian Level of Traffic Stress C. Connectivity D. Vulnerable Road User Safety E. Future Transit Service 3. Environmental / Livability A. GHG and Emissions B. Natural Resource Impacts C. Livability Impacts of Regional Vehicle Trips 4. Development Feasibility A. Support to Commercial Areas B. Land Use and Development Feasibility C. Order-of-Magnitude Infrastructure Costs D. Timing, Phasing, and Project Cost E. Fire, Life, Safety 5. Equity A. Equitable Benefits Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 8 EVALUATION SUMMARY The primary street network scenarios were compared in how they performed against one another for the metrics listed above. A summary of the results is included in Table 1. TABLE 1 : SUMMARY OF EVALUATION RESULTS SCENARIO 1 SCENARIO 2 SCENARIO 3 SCENARIO 4 1. VEHICULAR NETWORK A1. Vehicle Miles Traveled on the Arterial Street Network Total VMT change from no-build: - 0.5% Total VMT change from no-build: +1.0% Total VMT change from no-build: - 0.4% Total VMT change from no-build: - 0.3% A2. Vehicle Miles Traveled on the Primary and Secondary Street Network Share of Total VMT for RT 2.0 Trips: 92% Share of Total VMT for RT 2.0 Trips: 47% Share of Total VMT for RT 2.0 Trips: 62% Share of Total VMT for RT 2.0 Trips: 48% B. Quantity of Travel Lowest overall ADT volumes ADT volumes are higher along Mountainside Way compared to Scenarios 1 and 3 Slighly higher ADT volumes along Mountainside Way compared to Scenario 1, but otherwise similiar Highest overall ADT volumes C. Intersection Capacity This scenario results in the highest v/c ratios on Scholls Ferry and competitive or lower v/c ratios along Roy Rogers. This scenario results in improved operations along Scholls Ferry with some degradation of operations at the Roy Rogers & Bull Mountain intersection. This scenario results in similar operations on Scholls Ferry to Scenario 1, improved operations along parts of Roy Rogers, and some degradation of operations at the Roy Rogers & Perth intersection. This scenario results in improved operations along Scholls Ferry with some degradation of operations at the Roy Rogers intersections with Bull Mountain and Perth. D. Travel Time 6.91 minutes (-11 seconds from no-build) 6.88 minutes (-13 seconds from no-build) 7.07 minutes (-2 seconds from no-build) 6.63 minutes (-28 seconds from no-build) 2. MULTIMODAL NETWORK A. Bicycle Level of Traffic Stress – Relative Investment Needed to Meet BLTS 1 Lowest investment to achieve BLTS 1 Achieves BLTS 1 with some costs for median crossings at all locations Achieves BLTS 1 with some costs for additional median crossings Achieves BLTS 1 with some costs for median crossings at all locations Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 9 SCENARIO 1 SCENARIO 2 SCENARIO 3 SCENARIO 4 B. Pedestrian Level of Traffic Stress – Relative Investment Needed to Meet PLTS 1 Lowest investment to achieve PLTS 1 Achieves PLTS 1 with some costs for additional median crossings Achieves PLTS 1 with some costs for additional median crossings Achieves PLTS 1 with some costs for additional median crossings C. Connectivity Provides sufficient connectivity for development and good walkshed coverage Provides additional local and regional connectivity and walkshed coverage Provides additional local connectivity and walkshed coverage Provides the most local and regional connectivity and walkshed coverage D. Vulnerable Road User Safety Lowest VRU crash exposure VRU crash exposure is somewhat higher than Scenario 1 VRU crash exposure is somewhat higher than Scenario 1 VRU crash exposure is considerably higher than Scenario 1 E. Future Transit Service Primary route provides good coverage and lowest traffic volumes minimize delays Alternative routes available but may reduce Coverage. Traffic volumes may result in some transit delays Alternative routes could provide additional residential coverage but reduce commercial exposure. Alternative routes could reduce commercial exposure. Traffic volumes may result in transit delays 3. ENVIRONMENTAL / LIVABILITY A. GHG & Emissions Lowest potential for emissions in RT 2.0 Emissions potential is considerably higher than Scenario 1 Emissions potential is somewhat higher than Scenario 1 Emissions potential is considerably higher than Scenario 1 B. Natural Resource Impacts Fewest stream crossings, some impact to trees, lowest impervious surface Additional stream crossing, some impact to trees, potential wetlands impact, increased impervious surface Additional stream crossing, some impact to trees, increased impervious surface Two additional stream crossings, some impact to trees, potential wetlands impact, highest impervious surface C. Livability Impacts of Regional Vehicle Trips Lowest cut- through traffic and a small proportion of street volume Cut-through traffic is considerably higher than Scenario 1 and high proportion of street volume Some increase in cut-through traffic compared to Scenario 1 and relatively small portion of street volume Cut-through traffic is considerably higher than Scenario 1 and high proportion of street volume 4. DEVELOPMENT FEASIBILITY A. Support to Commercial Areas Provides highest overall pass-by Provides highest pass-by traffic for Provides best performance for SFMW but lower Provides best performance for RRBM but lower Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 10 SCENARIO 1 SCENARIO 2 SCENARIO 3 SCENARIO 4 traffic but lower walkshed coverage RRBM and good walkshed coverage pass-by traffic for RRBM pass-by traffic for SFMW B. Land Use & Development Feasibility Costs can be supported by development, potential impact on development yield on Vandermost Higher costs may have implications on funding strategy. Some additional dedication needs Higher costs may have implications on funding strategy. Some additional dedication needs and potential impacts on development yield on Vandermost Highest costs may have significant implications on funding strategy. Some additional dedication needs C. Order of Magnitude Infrastructure Costs Lowest cost and no need for CIP, County, or City funding sources Approximately double the cost of Scenario 1 and may need CIP, County, or City funding sources Higher cost compared to Scenario 1 and may need CIP, County, or City funding sources Approaching triple the cost of Scenario 1 and may need CIP, County, or City funding sources D. Timing, Phasing, and Project Cost Phasing can be structured to delay costs Additional stream crossing may bring forward costs Additional stream crossing may bring forward costs Two additional stream crossings may bring forward costs E. Fire, Life, and Safety Meets fire, life safety needs with some impacts on development on Vandermost Meets fire, life safety needs with multiple accesses and response directions. Higher traffic volumes may impact emergency response time Meets fire, life safety needs with some impacts on development on Vandermost Meets fire, life safety needs with multiple accesses and response directions. Higher traffic volumes may impact emergency response time 5. EQUITY A. Equitable Impacts Lowest exposure to emissions, noise, and crash risk but some impacts from climate resilience Higher exposure to emission, noise, and crash risk, impacts to housing affordability and climate resilience Higher exposure to emission, noise, and crash risk, impacts to housing affordability and climate resilience. Increased connectivity Highest exposure to emission, noise, and crash risk and impacts to housing affordability and climate resilience. Increased connectivity Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 11 Each scenario and where it performs well and not so well is summarized below. SCENARIO 1 Where does it perform well? • This scenario results in the lowest internal traffic volumes which provides benefits in terms of reducing exposure to crash risk, noise, and emissions for future residents of RT 2.0 West. This has the potential to provide the greatest benefit to residents and vulnerable population groups living in RT 2.0 West. • By limiting the number of stream crossings and the scale of streets and intersections, this scenario is the least impactful on natural systems. • Traffic exposure for commercial areas is highest under this scenario. • It is the lowest cost scenario, which can help reduce development costs and make housing more affordable. It will also allow development to be phased in a way that allows major infrastructure to be brought online once a critical mass of development triggers the need for these improvements. Where does it not perform so well? • This scenario provides the least benefit to arterial street operations and travel time reductions for regional travelers. However, arterial street operations and travel time differences are not significantly different compared to other scenarios. • Not extending Tile Flat Road and Mountainside Way reduces regional connectivity to destinations northwest of River Terrace and local connectivity to RT 1.0, RT 2.0 South, and Kingston Terrace respectively. The area on SW Vandermost Road will rely on SW Scholls Ferry Road to access other parts of RT2.0. However, development potential is expected to be limited in this area and can address fire, life, and safety needs. SCENARIO 2 Where does it perform well? • This scenario increases connectivity and access by extending Tile Flat Road to meet Mountainside Way. This increases access to regional destinations northwest of River Terrace 2.0, provides some incremental benefits to traffic operations on Scholls Ferry Road, marginally increases the amount of development in walking distance to key destinations, provides improved access to the area on Vandermost Road, and provides emergency access from a third primary direction. Where does it not perform so well? • This scenario draws traffic from Scholls Ferry Road resulting in increased internal traffic volumes, changes in traffic patterns that degrade intersection operations at the Roy Rogers & Bull Mountain Road intersection, and increased VMT while providing no significant reduction in travel time for people driving through the area in comparison with Scenario 1. The increase in internal traffic volumes and a new intersection with Mountainside Way will increase crash exposure, noise, emissions, and livability impacts on local residents. Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 12 • Not extending Mountainside Way south of Bull Mountain (compared to Scenarios 3 and 4) reduces local connectivity to RT 1.0, RT 2.0 South, and Kingston Terrace and route options for future transit service. • This scenario requires an additional stream crossing and additional street and intersection improvements. This increases the impact on natural systems. It will also increase infrastructure costs, which could bring forward the need to construct major infrastructure such as stream crossings before development can support them which would need to be funded outside of the RT 2.0 development schedule. SCENARIO 3 Where does it perform well? • This scenario increases connectivity and access by extending Mountainside Way to meet Roy Rogers Road at the Perth Road intersection. This increases local access to RT 1.0, RT 2.0 South, and Kingston Terrace and provides more route options for future transit service. It also marginally increases the amount of development in walking distance to key destinations. Where does it not perform so well? • This scenario draws traffic from Roy Rogers Road which provides some slight benefit to traffic operations on Roy Rogers Road, but results in increased internal traffic volumes, increased VMT, and overall increased travel time for people driving through the area. The increase in internal traffic volumes is not as significant as Scenarios 2 and 4, but will still see some increase in crash exposure, noise, emissions, and livability impacts on local residents. • Not extending SW Tile Flat Road (compared to Scenarios B and D) reduces regional connectivity to destinations northwest of River Terrace. The area on SW Vandermost Road will rely on SW Scholls Ferry Road to access other parts of RT2.0. However, development potential is limited in this area and can address fire, life, and safety needs. • This scenario requires an additional stream crossing and additional street and intersection improvements. This increases its impact on natural systems. It will also increase infrastructure costs, which could impact housing affordability and may bring forward the need to construct major infrastructure such as stream crossings before development can support them which would need to be funded outside of the RT 2.0 development schedule. SCENARIO 4 Where does it perform well? • This scenario maximizes connectivity and access by extending Tile Flat Road and Mountainside Way. The Tile Flat Road extension increases access to regional destinations northwest of River Terrace, provides improved access to the area on Vandermost Road, and provides emergency access from a third primary direction. The Mountainside Way extension increases local access to RT 1.0, RT 2.0 South, and Kingston Terrace and provides more route options for future transit service. Both extensions increase the amount of development in walking distance to key destinations. • This scenario draws traffic from Scholls Ferry Road and Roy Rogers Road which provides some incremental benefit to traffic operations on the arterial network and a very slight (<30 seconds) travel Evaluation of Tile Flat Extension Scenarios – Summary June 2025 Page | 13 time savings for regional travelers. However, capacity freed up on the arterial street network is expected to be filled by regional trips diverting from other congested corridors, resulting in a negligible change in VMT for this scenario along Roy Rogers Road and Scholls Ferry Road compared to no-build. Where does it not perform so well? • This scenario draws traffic from Scholls Ferry Road and Roy Rogers Road and results in the highest increase in internal traffic volumes, causing significant increases in crash exposure, noise, emissions, and livability impacts on local residents. • This scenario requires two additional stream crossings and the highest number of street and intersection improvements. This significantly increases the impact on natural systems. It will also significantly increase infrastructure costs, which could impact housing affordability and may bring forward the need to construct major infrastructure such as stream crossings before development can support them which would need to be funded outside of the RT 2.0 development schedule. RECOMMENDED SCENARIO The project team recommends that Scenario 1 be developed with a stub provided to the south edge of the development to allow for the future extension of Mountainside Way if the area south of RT 2.0 West (that is currently undesignated area outside the UGB) is ever annexed into the City of Tigard and developed. Scenario 1 outperforms the other scenarios in terms of cost, reduced impact on development and natural resources, and has the lowest potential impact to RT 2.0 residents. There are some connectivity benefits to areas of RT 1.0, RT 2.0 South, and Kingston Terrace if SW Mountainside Way was extended further south in the future. The scenarios that extend SW Tile Flat Road to connect to SW Mountainside Way do provide additional connectivity for regional travelers to areas northwest of RT 2.0. However, they provide limited arterial street operational benefits and do not seem worth the significant added cost and impacts to natural systems, development phasing, and local residents that will live in RT 2.0. Tigard River Terrace 2.0 - Tile Flat Extension Evaluation (Draft 6-10-2025) Scenario 1 Scenario 2 Scenario 3 Scenario 4 A1. Total Vehicle Miles Traveled Ideal Definition: Total VMT decreases on the Arterial and Primary and Secondary Street network* as the RT 2.0 Primary and Secondary Street network is constructed and accommodates more local trips. Total VMT change from no-build: -0.5%Total VMT change from no-build: +1.0%Total VMT change from no-build: -0.4%Total VMT change from no-build: -0.3% A2. VMT on the Primary and Secondary Street Network Ideal Definition: The RT 2.0 Primary and Secondary Street network* serves local trips and discourages regional cut- through traffic. Share of Total VMT for RT 2.0 Trips: 92%Share of Total VMT for RT 2.0 Trips: 47%Share of Total VMT for RT 2.0 Trips: 62%Share of Total VMT for RT 2.0 Trips: 48% B. Quantity of Travel Ideal Definition: Forecasted average daily traffic volumes on the Primary and Secondary Street network are consistent with that of a Collector through a residential neighborhood, with the ideal condition being under 6,000 ADT Lowest overall ADT volumes ADT volumes are higher along Mountainside Way compared to Scenarios 1 and 3 Slighly higher ADT volumes along Mountainside Way compared to Scenario 1, but otherwise similiar Highest overall ADT volumes C. Intersection Capacity Ideal Definition: Intersections are forecasted to be less congested once the RT 2.0 Primary and Secondary Street network is constructed, with intersections forecasted to operate with a v/c ratio that is at or below the current 0.99 mobility target One intersection exceeds the current mobility target. This scenario results in the highest v/c ratios on Scholls Ferry and competitive or lower v/c ratios along Roy Rogers. Two intersections exceed the current mobility target. This scenario results in improved operations along Scholls Ferry with some degradation of operations at the Roy Rogers & Bull Mountain intersection. One intersection exceeds the current mobility target. This scenario results in similar operations on Scholls Ferry to Scenario 1, improved operations along parts of Roy Rogers, and some degradation of operations at the Roy Rogers & Perth intersection. One intersection exceeds the current mobility target. This scenario results in improved operations along Scholls Ferry with some degradation of operations at the Roy Rogers intersections with Bull Mountain and Perth. D. Travel Time Ideal Definition: Forecasted travel times for regional trips* decrease by more than one half of a traffic signal cycle (more than 30 seconds) once the RT 2.0 Primary and Secondary Street network is constructed. 6.91 minutes (-11 seconds from no-build)6.88 minutes (-13 seconds from no-build)7.07 minutes (-2 seconds from no-build)6.63 minutes (-28 seconds from no-build) Criteria 1. Vehicular Network Tigard River Terrace 2.0 - Tile Flat Extension Evaluation (Draft 6-10-2025) Scenario 1 Scenario 2 Scenario 3 Scenario 4Criteria A. Bicycle Level of Traffic Stress Ideal Condition: Minimal investment to create BLTS 1.Lowest investment to achieve BLTS 1 Achieves BLTS 1 with some costs for median crossings at all locations Achieves BLTS 1 with some costs for additional median crossings Achieves BLTS 1 with some costs for median crossings at all locations B. Pedestrian Level of Traffic Stress Ideal Condition: Minimal investment to create PLTS 1.Lowest investment to achieve PLTS 1 Achieves PLTS 1 with some costs for additional median crossings Achieves PLTS 1 with some costs for additional median crossings Achieves PLTS 1 with some costs for additional median crossings C. Connectivity Ideal Condition: high performance in local and regional connectivity and walkshed coverage. Provides sufficient connectivity for development and good walkshed coverage Provides additional local and regional connectivity and walkshed coverage Provides additional local connectivity and walkshed coverage Provides the most local and regional connectivity and walkshed coverage D. Vulnerable Road User Safety Ideal Condition: vulnerable road user crash exposure is zero. Lowest VRU crash exposure VRU crash exposure is higher than Scenario 1 VRU crash exposure is somewhat higher than Scenario 1 VRU crash exposure is considerably higher than Scenario 1 E. Future Transit Service Ideal Condition: high performance in base coverage, route options, and minimal transit delay. Primary route provides good coverage and lowest traffic volumes minimize delays Alternative routes available but may reduce coverage. Traffic volumes may result in some transit delays Alternative routes could provide additional residential coverage but reduce commercial exposure. Alternative routes could reduce commercial exposure. Traffic volumes may result in transit delays A. GHG & Emissions Ideal Condition: cut-through VMT is minimized (zero)Lowest potential for emissions in RT 2.0 Emissions potential is considerably higher than Scenario 1 Emissions potential is somewhat higher than Scenario 1 Emissions potential is considerably higher than Scenario 1 B. Natural Resource Impacts Ideal Condition: minimal impact to streams, trees, wetlands, and impervious surface Fewest stream crossings, some impact to trees, lowest impervious surface Additional stream crossing, some impact to trees, potential wetlands impact, increased impervious surface Additional stream crossing, some impact to trees, increased impervious surface Two additional stream crossings, some impact to trees, potential wetlands impact, highest impervious surface C. Livability Impacts of Regional Vehicle Trips Ideal Condition: cut-through traffic is minimized (zero vpd) Lowest cut-through traffic and a small proportion of street volume Cut-through traffic is considerably higher than Scenario 1 and high proportion of street volume Some increase in cut-through traffic compared to Scenario 1 and relatively small portion of street volume Cut-through traffic is considerably higher than Scenario 1 and high proportion of street volume3. Environmental / Livability2. Multimodal Network Tigard River Terrace 2.0 - Tile Flat Extension Evaluation (Draft 6-10-2025) Scenario 1 Scenario 2 Scenario 3 Scenario 4Criteria A. Support to Commercial Areas Ideal Condition: maximize traffic passing by and walkshed coverage for commercial areas Provides highest overall pass-by traffic but lower walkshed coverage Provides highest pass-by traffic for RRBM and good walkshed coverage Provides best performance for SFMW but lower pass-by traffic for RRBM Provides best performance for RRBM but lower pass-by traffic for SFMW B. Land Use & Development Feasibility Ideal Condition: least impact to development with costs contained to those supported by development Costs can be supported by development, potential impact on development yield on Vandermost Higher costs may have implications on funding strategy. Some additional dedication needs Higher costs may have implications on funding strategy. Some additional dedication needs and potential impacts on development yield on Vandermost Highest costs may have significant implications on funding strategy. Some additional dedication needs C. Order of Magnitude Infrastructure Costs Ideal Condition: lower costs contained to those supported by development Lowest cost and no need for CIP, County, or City funding sources Approximately double the cost of Scenario 1 and may need CIP, County, or City funding sources Higher cost compared to Scenario 1 and may need CIP, County, or City funding sources Approaching triple the cost of Scenario 1 and may need CIP, County, or City funding sources D. Timing, Phasing, and Project Cost Ideal Condition: development can be phased to delay infrastructure costs Phasing can be structured to delay costs Additional stream crossing may bring forward costs Additional stream crossing may bring forward costs Two additional stream crossings may bring forward costs E. Fire, Life, and Safety Ideal Condition: meets fire, life, safety with minimal impact on development yield and response times Meets fire, life safety needs with some impacts on development on Vandermost Meets fire, life safety needs with multiple accesses and response directions. Higher traffic volumes may impact emergency response time Meets fire, life safety needs with some impacts on development on Vandermost Meets fire, life safety needs with multiple accesses and response directions. Higher traffic volumes may impact emergency response time A. Equitable Impacts Ideal Condition: no impacts to vulnerable populations Lowest exposure to emissions, noise, and crash risk but some impacts from climate resilience Higher exposure to emission, noise, and crash risk, impacts to housing affordability and climate resilience Higher exposure to emission, noise, and crash risk, impacts to housing affordability and climate resilience. Increased connectivity Highest exposure to emission, noise, and crash risk and impacts to housing affordability and climate resilience. Increased connectivity Legend Scenario meets the ideal condition Scenario has a small impact compared to the ideal condition Scenario has medium impact compared to the ideal condition Scenario has a significant impact compared to the ideal condition Scenario has a very significant impact compared to the ideal condition Scenario is neutral or operates with no change to existing conditions4. Development Feasibility5. Equity