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Built by a licensed traffic engineer

Keep your traffic studies on course.

Run QA/QC and prepare report-ready tables in one workflow.

Join the waitlist

Pilot program currently full.

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Northbound in action

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0–2 seconds: Automated QA/QC. Results in minutes. Upload files in your browser.

2–6 seconds: 50+ engineering checks. A growing expert check library.

6–11 seconds: Less searching. More focused review. The LOS reasonableness finding is expanded.

11–15 seconds: You make the engineering call. The reviewer selects Needs revision.

15–19 seconds: Catch issues early. Less rework. Keep projects moving.

“Northbound has become an essential part of my workflow by condensing tasks to a single program with verifiable results.”

IanHexagon
Read the full testimonial

“Northbound has become an essential part of my workflow by condensing tasks to a single program with verifiable results. It fills an important niche in transportation analysis that has previously only been occupied by a scattering of internal spreadsheets and slower processes used to navigate a variety of user-unfriendly traffic softwares.”

Ian · Hexagon

Deliverables and QA/QC.
In the same workflow.

Deliverables

Your team
Upload analysis files.
Northbound
Prepare report-ready tables.

QA/QC

Your team
Review findings and decide.
Northbound
Show flagged issues and reasons.

Revise as needed

Your team
Revise and re-upload.
Northbound
Keep all deliverables in sync.

What changes in practice.

High-quality QA/QC becomes lightweight enough to run throughout the project, not just at the end.

Traditional QA/QC

Hours or days

  • Consumes schedule and budget
  • Issues can compound before they’re caught
  • Each additional QA/QC pass adds more time and cost

With Northbound

Minutes

  • Run QA/QC as often as needed
  • Iterate faster
  • Protect schedule and budget

See why early pilots are making Northbound part of the workflow.

65+
Projects run
7+
QA/QC runs per project
20+ hrs
Saved on a study

“The platform helps streamline my team's workflow by converting uploaded analysis results into clean, ready‑to‑use reporting formats and reducing the amount of time devoted to data entry, ultimately accelerating the preparation of various operational analyses.”

Lance KnoxCity of San José

QA/QC, made clear.

Clear scope.

Know what is—and isn’t—checked from day one.

Transparent logic.

Programmed checks with clear reasons—not AI-generated judgment.

Review history.

Trace findings and your team’s review decisions.

Domain expertise, built in.

50+ engineering checks.

An ever-growing library of programmed traffic-engineering checks.

Your checking scope.

Turn checks on or off to fit the project.

Local context stays local.

Add manual checks for agency- or project-specific requirements.

The people behind Northbound

Why we’re building Northbound.

Ollie Zhou

Ollie Zhou, TE

Co-founder & CEO
Licensed traffic engineer

I know what a Friday
deadline feels like.

I spent 12 years project-managing traffic studies. I know the feeling of finding an issue at 1 p.m. on Friday when the study is due at 5.

I’ve felt the pressure to deliver with too little time to check every number. I’ve answered city reviewers’ questions about issues I didn’t create, fielded developers’ calls to get it over the line, and gone over budget fixing things I wish I’d caught earlier.

I want to sign off knowing I can stand behind the technical quality. We built Northbound to help you do the same.

Jason Zhou

Jason Zhou

Co-founder & CTO
Software engineering leadership

Good software respects
the work it supports.

I spent 12 years managing software engineering teams at Redfin, reimagining what technology could do for a traditional industry.

I learned that meaningful change starts with respecting the people, expertise, and processes already in place. Traffic engineering isn’t a place to “move fast and break things.” The work carries real responsibility, and the software supporting it should reflect that.

I’m excited to serve this community with carefully built software that earns your trust—and helps your team do its best work.

Your workflow.
Your judgment.

A few things to know before bringing another tool into your team's process.

Ask Ollie a question
How much setup does our team need?

Before onboarding, we confirm your source files, reporting formats, enabled checks, and any firm- or project-specific requirements. Configuration is scoped with your team so you know what is supported before relying on Northbound in a live study.

How quickly do results come back?

Northbound runs the QA/QC engine and produces results in seconds. Your team then reviews the findings and makes the engineering decisions.

Do all 50+ checks run on every project?

No. Your engineer or PM can turn individual checks on or off to fit the project, and add manual checks wherever Northbound’s automated coverage ends. Northbound runs the enabled checks; your team completes the manual ones.

Does a completed QA/QC run mean the study is correct?

No. Completing the enabled automated checks is not a certification of the entire study. Review the findings, complete any manual checks, and make and record your engineering decisions.

Does Northbound replace Synchro?

No. Northbound supports the preparation and checking work around your analysis, starting with LOS and queue workflows and Synchro 12. Your team continues to own the model and the engineering decisions. Exact input formats and project fit are confirmed before onboarding.

Is this another one of those AI startups?

No. Northbound will never use AI to run QA/QC. Our QA/QC engine follows programmed engineering logic, not AI-generated judgments. You choose the scope, see the findings, and make the engineering decisions.

Can it work with our reporting templates?

Northbound prepares LOS and queue reporting outputs. Template requirements and any configuration are reviewed with your team before onboarding so you know what is supported and what setup is needed.

Do we need to share a project to join the waitlist?

No project files are needed to express interest. Before sharing confidential material, contact Ollie to discuss project fit and the applicable data-access, retention, and deletion practices.

How can our team get access?

Our pilot program is currently full. Join the waitlist to hear when access opens to more teams. Joining is an expression of interest—not immediate access or a commitment to buy.

Built for the engineering community

Want Northbound on your
next traffic study?

Join the waitlist for the next opening. We’ll confirm fit around your analysis files, reporting formats, and checking scope before you rely on Northbound in a live project.

Our pilot program is currently full.

We’ll let you know when access opens to more teams.

Seconds
QA/QC engine runtime
50+
Live engineering checks
Your call
Engineering decisions