William F. Johnson, P.E., PTOE - Wells + Associates

William F. Johnson, P.E., PTOE

Will Johnson Wells + Associates

As Vice President of Engineering, Will Johnson is a veteran traffic engineer heading our Prince William County office in Manassas. He is a licensed Professional Engineer in Virginia, Maryland, and North Carolina.

He has more than a decade of experience in transportation engineering. He is responsible for managing and overseeing a variety of projects, including traffic impact studies, bicycle and pedestrian evaluation, freeway and limited access studies, master plan studies, capacity analyses, data center traffic impact studies, roundabout analysis and design, signal warrant analysis, micro-simulation analyses, directional distribution analyses, and preparing technical reports.

Will is a former Adjunct Instructor for Civil, Environmental, and Infrastructure Engineering at George Mason University.


Johnson, William and Aimee Flannery. Estimating Speeds at High-Speed Rural Roundabouts. Third International Symposium on Highway Geometric Design. Chicago, Illinois, 2005.

Academic Positions

Adjunct Instructor (2009-2010), Department of Civil, Environmental and Infrastructure Engineering, George Mason University

CEIE 461/561 – Traffic Engineering 
CEIE 301 – Engineering and Economic Models


How did you get interested in transportation?
The first time I rode the Washington Metro when I was 11 years old. I was amazed at the sheer number of people who can travel at once. It was my first experience with a large city public transit service and got me interested in how transportation works with urban planning.
Personal life philosophy?
Never be afraid to question the world around you.
How do you relax?
I can usually unwind with an easy run listening to my favorite music, or doing a little yard work. Alternatively, I certainly don’t mind reading on the back porch or vegging on the couch watching TV.
Best advice you’ve ever received?
Perennial wisdom from my grandmother: “Don’t sweat the small stuff...”
Favorite fast food chain?
Uber or Lyft?


  • Master of Science, Civil and Infrastructure Engineering, George Mason University
  • Bachelor of Science, Civil and Infrastructure Engineering, George Mason University

Professional Registrations

  • Professional Engineer (P.E.): Maryland, North Carolina, Virginia
  • Professional Traffic Operations Engineer (PTOE): Institute of Transportation Engineers