About Us
We build tools for the people fighting for safer streets.
Roadway Biome exists because advocates, researchers, and community organizations deserve the same quality of data that governments and large institutions have access to. Open source, ethical, and built in Portland, OR.
Our mission
Democratizing roadway data, one deployment at a time.
Decisions about how our communities are built are often based on incomplete data collected by machines and people that only see cars. We believe that changes when every advocate, nonprofit, and municipality has access to real, inclusive primary roadway data.
The Traffic Monitor is our answer to that gap. Open source, privacy-first, and built to be understood by anyone who uses it.
Glass box, not mystery box
Every line of code and every hardware decision is public. No proprietary algorithms. No hidden data collection. You own your data, completely.
Community first
Built alongside the advocates, nonprofits, and municipalities who use it. Their needs drive every product decision we make.
Ecologically minded
Solar-driven manufacturing, biodegradable filaments, right-to-repair design. Every decision considers the environmental impact from sourcing to shipping.
Our story
Building better roadway data tools.
We are a mission-driven organization building open, private data collection tools that lower the barrier of entry for advocates to make better data driven decisions and policies about their roadways.
Our journey
How we got here
2023
A gap no one was filling
In 2023 we saw a large gap between on-the-ground roadway experiences and the data driving infrastructure decisions. Decisions were being made on gut feelings, anecdotes, and car-centric traffic data that was often decades out of date. We looked for existing solutions built for advocates and found nothing that fit.
2024-2025
So we built it ourselves
Starting with a solid open source software foundation and commodity hardware, we built the Traffic Monitor to be repairable, affordable, and transparent. We took it into the field, worked alongside community organizations, and refined it based on what they actually needed.
2026
Ready for the world
Today the Traffic Monitor is a proven, field-tested device available as an off-the-shelf product. We’re launching pre-orders so that advocates and organizations anywhere can access the same quality of roadway data that was previously only available to municipalities and well-funded contractors.
What we stand for
Built different, on purpose.
Privacy first
The Traffic Monitor counts and classifies road users. It does not store images, track individuals, or send data anywhere. Everything stays on the device. This is not a feature that can be turned off.
Right-to-repair
We use standard, best-in-class components specifically so you can fix or upgrade the device without needing to come back to us. Documentation is published so you always know what you’re working with.
Holistic detection
Most counters only see cars. The Traffic Monitor counts pedestrians, bicycles, vehicles, and more, together in a single deployment. This complete picture is novel in the industry and it’s what advocacy work needs.
Works anywhere
No internet required. In areas without Wi-Fi the device creates its own hotspot. Set it up anywhere there’s power and it starts collecting immediately. No app required.
Fully open source
Every line of code is public on GitHub. The hardware is fully documented. You can inspect it, fork it, or build on top of it. No proprietary algorithms deciding what gets counted and how.
Sustainability
Solar-driven manufacturing, biodegradable filament enclosures, and right-to-repair construction. Built to last, not to replace. Every sourcing decision considers environmental impact.
The team
Matt Zajack
Founder and Creator
Matt built the Traffic Monitor because advocates needed a way to prove out their problems with data, and nothing in the market was built with them in mind. He connects directly with advocacy communities, conducts pro bono deployments, and makes sure every product decision serves the people who need it most.
He loves to roll up his sleeves, whether that’s developing the software and hardware, working directly in the field with community organizations, or thinking through how to make roadway data more accessible to everyone who needs it.
Built with 💚 in PDX.
Portland, Oregon hello@greendormer.com+1 (503) 610-6191Contact usOpen source
Built on TrafficMonitor.ai. Open to everyone.
The Traffic Monitor is built on the TrafficMonitor.ai open source project. Every line of code is public, every hardware decision is documented, and the entire community can inspect, contribute to, and build on top of the foundation.
We believe ethical AI and transparent data collection are not optional. They are the foundation of everything we build.
100%
Open source software stack
0
Third-party servers involved
PDX
Hand-built in Portland, Oregon
0
Images or personal data stored
0
Subscriptions or licenses required
Ready to start collecting data that makes a difference?
Pre-order the Traffic Monitor and start building the evidence base your community deserves.
Pre-Order Now See our case studies
