Resources
Portable Changeable Message Boards—Insights, Applications, Performance.
Focused knowledge, reliable practices, and information designed for traffic safety professionals.
Message Boards
Operation. Planning. Use.
Considerations that influence PCMS management, deployment, power, and operational efficiency across different applications.
Articles
The Real Cost of a Two-Person PCMS Setup Crew
Two-person PCMS setup has been standard practice long enough that most...
Why Setup Time Matters More Than You Think on Active Roadways
Setup time is how long a deployment takes. Most operations track it loosely —...
Single-Operator PCMS Deployment Cuts Roadside Risk
Every minute a worker spends on a live shoulder is a minute of documented...
What Is LFP Charge Management?
LFP charge management refers to the rules, controls, and protections required...
What Cleated Footplates Do That Ballast Weight Alone Cannot
Ballast weight is how the industry has historically answered the PCMS...
How Slope Capability Determines Where a Message Board Can Legally and Safely Sit
Slope is rarely the first thing an operator thinks about when selecting a PCMS...
PCMS Trailer Theft: What Gets Stolen, Part by Part
If you manage a PCMS fleet long enough, you stop being surprised by what turns...
What the AASHTO 18-Foot Guideline Actually Means for Your Operation
There is a number that shows up in roadside safety guidance that most traffic...
Why PCMS Placement Distance From Traffic Is a Design Problem, Not a Site Decision
Ask most traffic control operators where they place a PCMS unit, and the...
What An MPPT Is— And Why It Matters For PCMS Units
An MPPT (Maximum Power Point Tracking) controller is a smart solar charge...
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