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K-12 Schools Weaving safety, efficiency, and accessibility into the fabric of education Ensuring safe transportation for the next generation Well-crafted site design fosters a positive learning environment, ensuring a smooth journey for every student amid budget constraints and diverse needs. Our services include: ​ ​ Site access and on-site circulation design Parking analysis and strategies Safe routes to schools Bus routing and planning Support for both private and public schools Traffic studies for new and existing schools Non-motorized planning Off-site traffic improvements Master planning for school campuses and sites Transportation management plans Traffic signal design Streetlighting/illumination design Negotiating with city and/or county staff Presenting at public meetings Testifying at hearings Zero emissions bus transition plans Client Projects A few of our recent favorites Ferndale High School Ferndale School District For the replacement of Ferndale High School, Transpo addressed site access, circulation, and parking needs. Extensive data collection allowed for evaluating current school travel patterns and walking and biking connectivity assessments, which led to suggested circulation improvements. The team also supported a transportation impact study, identifying potential off-site mitigation measures. Bus Routing and Optimization Northshore School District As one of Washington State's largest districts, Northshore School District manages numerous buses for school transport, inter-school programs, and extracurricular activities. Transpo optimized school bus routing for start time policy changes by testing busing scenarios aligned with time goals, assisting in the implementation phase to ensure efficient transportation for the growing student population, including specialized services for students with disabilities. Fife Elementary and High School Fife School District Transpo assisted the school district in design and permitting for a new elementary school co-located with Fife High School. Several scenarios were evaluated to best locate the building, parking areas, and maximize safe pick up and drop off activities. A signalized access for both the elementary and high schools was designed by Transpo. Transpo played a key role in negotiating traffic mitigation requirements with the City. Experts in our field Some of the folks we are lucky to work with Stefanie Herzstein P E, PTOE Principal Dan McKinney Managing Principal Kassi Leingang P E Senior Project Manager Related Services CAMPUSES & INSTITUTIONS SAFETY INTERSECTION IMPROVEMENTS Contact Us First name Last name Email Write a message Submit Message sent!

Illumination Smarter lighting for safer journeys Enhancing safety, visibility, and security through a holistic approach to light Transpo is familiar with various methods of illumination design including small target visibility, luminance, and illuminance utilizing AGI32 lighting software. Our Illumination expertise includes: ​ Roadway Illumination Design Parking Lot and Area Lighting Intersection and Roundabout Photometric Analysis and Design using AGi32 Multi-modal and Trails Private and Plat developments Client Projects A few of our recent favorites Covington Connector City of Covington, WA Transpo provided roadway illumination design, amongst other things, for the complex multidisciplinary project, which is reconstructing 6,000-feet of existing roadway and constructing 5,000-feet of new roadway. The team led the effort to determine appropriate target light levels for the various roadway classifications evaluation and the selection of decorative pole/luminaire standard for entire project based on costs, aesthetics, coordination with local lighting representatives, and performance measures using AGi32. Ten Trails City of Black Diamond, WA Transpo is managing the design of improvements in the City of Black Diamond as part of the Ten Trails master planned development. Transpo led the effort in developing material standards and specifications for the City’s decorative roadway illumination based on costs, aesthetics, and performance evaluations using AGi32. Transpo also helped develop illumination design target light levels for various roadway classifications for the City based on ANSI/IES RP-8-18 and Dark Sky Association (IDA) recommendations which have been adopted as the official roadway illumination design standards. Northgate Mall Redevelopment Seattle, WA Transpo Group led on-site roadway, parking, and pedestrian-scale illumination design for the Northgate Mall Development project which includes the new Kraken Community Iceplex. The team worked with the client and project partners to select decorative luminaire pole/fixture combination based on cost, aesthetic, safety, and efficiency. Light level calculations were prepared, and on-site illumination was designed to meet current ANSI/EIS RP-8 guidelines and City of Seattle standards. Experts in our field Some of the folks we are lucky to work with Trung Le PE Project Manager Victor Mach EIT Senior Transportation Engineer Matthew Latourelle Transportation Analyst Related Services CORRIDORS INTERSECTION IMPROVEMENTS ACTIVE TRANSPORTATION Contact Us First name Last name Email Write a message Submit Message sent!

Intersection Improvements Enhancing traffic flow, safety, and efficiency Enhancing connectivity at every intersection Creating harmony between traffic flow, safety, and efficiency is crucial for drivers, cyclists, and pedestrians alike. This balance establishes an inclusive transportation network, promoting coexistence between different modes and creating a safer, more efficient roadway network. Our intersection expertise includes: ​ Traffic Signals Roundabouts Channelization Bicycle Facilities Roadway Grading Intersection Grading ADA Pedestrian Facilities Signing Work Zone Traffic Control Cost Estimating Project Specifications Client Projects A few of our recent favorites Covington Connector City of Covington, WA The team designed improvements for nearly two miles of a new 5-lane roadway. Intersection improvements include two multi-lane roundabouts, two new traffic signals, and two single-lane roundabouts at a ramp interchange. Enhancements feature decorative lighting, artistic elements in roundabout central islands, a shared-use wildlife and pedestrian trail undercrossing, and landscaping. Madigan Access Improvements City of Lakewood, WA Transpo led the traffic operation and safety analysis, concept development, and PS&E of the traffic signal system at the interchange along I-5, which provides primary access to the Madigan Army Hospital on Joint Base Lewis-McChord. Since construction was completed, the system has improved emergency access and dramatically reduced delay and queue lengths at intersections. Dahlgren Roundabout Design City of North Bend, WA Our team provided roundabout geometric design for a new roundabout to improve circulation at the intersection. Transpo also provided the work zone traffic control and signing/striping design for the project. This project highlights our ability to develop construction phasing that can be implemented with limited traffic impacts. Experts in our field Some of the folks we are lucky to work with “Transpo’s signal design expertise was crucial to the success of the project and obtaining consensus with partner agencies.” -Weston Ott, City of Lakewood Bryce Kinney P E Senior Project Manager Ryan Peterson PE, PTOE Principal Damani Nkeiruka P E Project Manager Related Services TECHNOLOGY & ITS ILLUMINATION ACTIVE TRANSPORTATION Contact Us First name Last name Email Write a message Submit Message sent!

California Street Pedestrian and Bicycle Corridor Improvements City of Everett, WA Improving and developing active mode connections to downtown Everett for pedestrians and cyclists. About the Project Transpo developed five creative bike facility alternatives, and an analysis of the benefits and drawbacks of each for consideration by the public and the City through a public outreach program, including an online open house website to solicit public feedback on the alternatives. Alternatives considered included cycle tracks, buffered bike lanes and shared use paths, along with multiple routing options. Transpo provided final engineering design services, completing fully designed plans, specifications and cost estimates of the preferred alternative bike and pedestrian improvements. The final design includes a two-way cycle track, new back-in angled parking, full sidewalks, new RRFB protected crossings, curb extensions, a raised intersection, and planting strips with street trees to enhance the corridor. The design was completed in 2023 with construction to follow in the next few years dependent on grant funding and phasing with adjacent complimentary bike and pedestrian projects. Services Provided Bicycle facility alternatives development and analysis Public Outreach, online and in-person Bicycle and pedestrian facility final PS&E design Curb Ramp and ADA parking design RRFB crossing and raised intersection design Project Challenges Transpo and the City were challenged with identifying the best facility design to meet the overall project goal while balancing the perceived lack of existing on-street parking, public familiarity with bike facility types, City long-term maintenance concerns and traffic operations concerns. ​ Transpo developed and evaluated a wide range of alternative sections and facility types, considering everything from shared roadways to full shared use paths and a variety of striped on-road bike facilities. Our team evaluated parking use analysis at peak demand times to understand the existing parking supply and demands, even during overnight and weekend activities. Public input was sought with an online portal of information and surveys, along with in-person outreach to the extent feasible in the challenging COVID-19 affected environment of 2021 and 2022. City staff from operations and maintenance, along with public works, communications and traffic were consulted during the evaluation of alternatives and feedback was incorporated into the final evaluation. Our alternatives analysis was thorough and transparent to ensure that the public understood how the selected alternative balanced the competing needs while still meeting the project goal. The alternatives process was documented in a final report, available for the public prior to any final design efforts on the preferred alternative. Challenges during the design phase of the process included steep slopes at tie-ins to private property, ADA access and parking challenges, existing grant-funded electric vehicle charging that needed to be protected in-place, and addressing the visibility and comfort of all modes at the various intersections along the project corridor. The final design, incorporating a raised crossing, a mix of curb types, parking types and curb ramps to preserve ADA access and EV chargers, and curb extensions and treatments at crossings to slow vehicle turning speeds while also slowing cyclists approaching intersections, met all the design challenges. Key project dates and milestones June 2025 - April 2026 July 2024 - May 2025 January 2023 - June 2024 Key project milestone here Deep dive hard stop pass the mayo, appeal to the client, sue the vice president no scraps hit the floor. Closing these latest prospects is like putting socks on an octopus social currency identify pain points, nor build on a culture of contribution and inclusion. Key project milestone here Deep dive hard stop pass the mayo, appeal to the client, sue the vice president no scraps hit the floor. Closing these latest prospects is like putting socks on an octopus social currency identify pain points, nor build on a culture of contribution and inclusion. Key project milestone here Deep dive hard stop pass the mayo, appeal to the client, sue the vice president no scraps hit the floor. Closing these latest prospects is like putting socks on an octopus social currency identify pain points, nor build on a culture of contribution and inclusion. Project highlights Transpo absolutely killed it with our project. Working with them was the single greatest experience of my life. Better than the birth of my children or the one time my father finally said he loved me. -Client McClientface Contact Us First name Last name Email Write a message Submit Message sent!

Site Development Innovative services tailored for complex sites Comprehensive transportation solutions for owners, developers, and architects Whether you are developing a downtown commercial office building or a suburban mixed-use center, Transpo Group provides effective solutions for transportation-related issues. Typical services we provide include: ​ ​ SEPA and EIS studies Due diligence and feasibility Permitting and Entitlement Strategy Development agreement/mitigation negotiations Expert witness and testimony Development standards/plan review Roadway design and channelization Intelligent Transportation Systems (ITS) Pedestrian, bicycle, and safety considerations Transit planning Client Projects A few of our recent favorites Seattle Convention Center Addition City of Seattle, WA Transpo Group supported the Seattle Convention Center by managing and leading traffic engineering design for the new addition in downtown Seattle. This complex project implemented right-of-way improvements over several construction phases. The addition required an array of design support services, including developing a traffic management plan, traffic control staging plans, traffic signal up-grades/modifications at 13 intersections, channelization design along 10 urban corridors, and a comprehensive analysis of pedestrian and bicycle mobility and access. Tehaleh Employment Based Planned Community Pierce County, WA EIS transportation analyses, expert witness testimony and design services were provided for this master plan community. The site includes up to 9,700 housing units and 3 million square-feet of commercial uses, schools, and parks. Extensive coordination on transportation was conducted including working with Pierce County, WSDOT, Orting, Sumner and Bonney Lake. On-going services include traffic monitoring, development agreement updates, hearing support and intersection design. Cascade Industrial Center Subarea Plan & Planned Action EIS City of Arlington, WA Transpo provided the transportation analysis for the Arlington-Marysville Cascade Industrial Center (CIC) Subarea Plan. Transpo evaluated roadway and intersection transportation improvement needs to support the subarea plan and considered opportunities to leverage and improve facilities for the future Community Transit Swift bus rapid transit. Transpo evaluated pedestrian and bicycle connectivity and developed strategies to encourage the use of alternative modes to access businesses within the CIC. Experts in our field Some of the folks we are lucky to work with Stefanie Herzstein P E, PTOE Principal Mike Swenson PE, PTOE Managing Principal Kassi Leingang P E Senior Project Manager Related Services CAMPUSES & INSTITUTIONS ILLUMINATION INTERSECTION IMPROVEMENTS Contact Us First name Last name Email Write a message Submit Message sent!

Safety The most important part of everything we do Addressing critical safety needs with data and technology Our Safety expertise includes: ​ Corridor and intersection multi-modal safety analysis Comprehensive safety planning for Local Roads (LRSP), Action Plans (SS4A) and Master Plans Grant Writing Support Safety improvement alternatives development Incremental safety improvement plans for pilot, phasing, and final design of projects Safety-focused public, stakeholder, and elected official outreach materials Plans, Specifications, and Estimates (PS&E) for safety improvement projects with local and federal funding Client Projects A few of our recent favorites Traffic Calming Handbook City of Milton, WA Transpo developed a Traffic Calming Handbook for the City that identifies traffic calming solutions specific to the City’s roadway infrastructure types and needs, and a program to guide public feedback and City response to traffic calming concerns, prioritizing safety of all modes balanced with quick response and implementation. Samish-Maple-Ellis City of Bellingham, WA Transpo assisted with the planning development and final PS&E design of a corridor rechannelization safety project to replace vehicle lanes with buffered bike lanes and intersection improvements for active modes. The project enhanced the safety and comfort for cyclists and pedestrians along the corridor, creating separation from vehicles, wayfinding and low-stress routing away from heavy traffic. Timberlane Way Safe Routes to School City of Covington, WA Transpo provided comprehensive corridor safety planning, LRSP and grant support, constructions plans, and construction management services for the Timberlane Way corridor. To address concerns related to speed, active mode facilities on transit corridors and proximity to an elementary school, the project added speed and curve warning signing, solar-powered RRFB crosswalks, bike lane channelization, closed a sidewalk gap, and added accessible curb ramp and bus stop improvements. We are Roadway Safety Professionals Transpo recognizes the importance of roadway safety as a unique discipline within our larger practice. Our team of credentialed safety experts have earned the distinguished Roadway Safety Professional (RSP) designation through the Transportation Professional Certification Board (TPCB). ​ The RSP certification demonstrates our commitment to going above and beyond the traditional engineering approach to safety. Local Road Safety Plans Since 2018 Transpo's team has authored and updated 18 Local Road Safety Plans, responsible for contributing four million dollars in awarded funding through the Washington State Department of Transportation’s (WSDOT) Highway Safety Improvement Program (HSIP). Adopted as tools for comprehensive transportation planning in communities across the state, our safety plans have been providing an intentional framework for grant and local funded safety improvements. Experts in our field Some of the folks we are lucky to work with "Transpo provided safety data and spatial analysis, development of conceptual projects including a Citywide speed limit assessment concept, and assisted with presenting safety data, analysis and projects to the City Council... I have always been pleased with the work Transpo Group has delivered.” -Vangie Garcia PE, PMP, City of Redmond Brett Schock P E, AICP, RSP2i Senior Project Manager Kristen Cassias PE, RSP1 Senior Project Manager Chris Comeau AICP-CTP Senior Transportation Planner Related Services GRANTS ACTIVE TRANSPORTATION INTERSECTION IMPROVEMENTS Contact Us First name Last name Email Write a message Submit Message sent!

GIS Geographic Information Systems Empowering cities, communities, and users through visualizing data and information through the power of interactive mapping technology. Visualize The Future of Your Community An integral part of planning, engineering, asset management, and more. Geographical Information Systems (GIS) empowers our clients to visualize their communities through interactive maps, databases, and applications. Services On-Call GIS/CAD Support System Maintenance Data Collection & Conversion Mapping & Data Analtytics Implementation Planning Asset & Inventory Management Enterprise & Data Management Interactive App Development Training & Technical Support Interactive Web Portal for Clients Our interactive WebGIS portal is used to help understand transportation related concerns, patterns, and trends, enabling our clients to make thoughtful decisions for their communities. ​ Check out the links below to try out some of our interactive GIS projects. Northshore School District Road-Rail Crossing Study Sample Projects Some cool examples of our team's work King County Water District 20, City of Burien, WA Geodatabase Management | Database Design | Asset Inventory | CAD to GIS Conversion | ArcGIS Online Configuration | ArcGIS Pro Training Cascade Water Alliance On-Call GIS Support Services, Bellevue, WA ArcGIS Enterprise Deployment | Database Design | Interactive Application Development | ArcGIS Pro Training | System Architecture Documentation On-Call GIS Support & Water/Sewer Utility Mapping City of Duvall, WA Geodatabase Management | Asset Inventory | ArcGIS Pro Training | ArcGIS Online Configuration Transpo provides on-call GIS services to the City of Duvall, which has included updates to the City’s water, sewer, stormwater utility GIS Database, to ensure compatibility with ArcGIS software. Transpo staff also provides GIS and CAD software training and support to City staff, as needed, and technical assistance on other GIS-related services including, but not limited to, ArcGIS Pro training, Interactive application development, assistance with ArcGIS Online, streets and utility asset data collection and Field apps, Aktivov asset management software integration support, OpenGov Permitting integration, and other misc. GIS task assistance to City staff. On-Call GIS Support & Server Implementation, City of Ferndale, WA Server/Desktop Software Upgrades | Interactive Application Development | Training Transpo works with the City of Ferndale on an on-call basis to support the City’s GIS staff with implementation/configuration of ArcGIS Enterprise (Server, Portal, Data Store), web map applications and viewers. Transpo provides staff training as needed. Other GIS-related services to the city including, but not limited to, ArcGIS Pro training, Interactive application development, assistance with ArcGIS Online, Field inspection mobile apps, ArcGIS Desktop to Pro Migration, Asset Essentials asset management software integration support, and other misc. GIS task assistance to City staff. On-Call GIS Support Services, City of Tukwila, WA ArcGIS Enterprise Configuration | Server/Portal Plan | Training | Interactive Application Development | ArcGIS Pro Training Transpo has provided GIS related services to the city including, but not limited to, ArcGIS Enterprise deployment and configuration, GIS Server/Portal Plan, ArcGIS Pro training, Interactive application development, assistance with ArcGIS Online, ArcGIS Desktop to Pro Migration, Open Data HUB configuration, data management on SQL server, ADA barrier removal tracking tool, Lucity asset management software integration support, and other misc. GIS task assistance to City staff. The Team Expert analysts, technicians, and cartographers. Jonathan Den Haan GIS Analyst Nate Jones Senior GIS Analyst Casey Rothlisberger GIS Technician Bob Sisco, CDD Senior GIS Manager