Independent transportation engineer.
I help transportation consulting and research firms win pursuits and deliver projects that strengthen their reputation.
Trusted by
A track record across the transportation stack.
Consulting & research








Technology






Public agencies





Projects & impact
Twenty years of delivering meaningful projects.
About
John MacAdam, PE.
John MacAdam, PE is an independent transportation engineer with 20 years of experience, including 16 years at Ohio DOT.
A PE who codes. A researcher who has been the client. An advisor with your interests in mind.
I work directly with consulting firms, technology companies, and state DOTs, bringing agency-side perspective to private-sector decisions and technology fluency to the public-sector ones.
Background
- Leadership Former Administrator, ODOT Office of Traffic Management
- Patent Roadway maintenance condition detection
- Author Sustainable Self-Employment: Taking the Leap
- Workshops TSMO strategy and public-sector go-to-market
- Speaking TSMO and transportation technology
- Software Award-winning mobile applications
Writing & publications
Reports, essays, and a book.
2024
Assessing Traffic Management Systems
FHWA report
2024
Documenting and Configuring a TMS Inventory
FHWA report
2025
TMS Staffing Models — white paper
FHWA report
2024
The Lake Effect: Variable Speed Limits on I-90
Essay
2025
Sustainable Self-Employment: Taking the Leap
Book
2023
Design Tips for Engineers
Essay
2022
Building a Sustainable Side Hustle
Essay
2021
Roadway Maintenance Condition Detection & Analysis
US Patent
Contact
Interested in partnering?
Phone
614.551.7040
Location
Galena, Ohio
Elsewhere
linkedin.com/in/johnmacadam →