Ballast weight is how the industry has historically answered the PCMS...
What Cleated Footplates Do That Ballast Weight Alone Cannot
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Articles
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...
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 Tip-Overs Are Not Weather Events — They’re Engineering Failures
When a portable changeable message sign goes over in a windstorm, the incident...
How to Read Controller Data to Predict Lockouts
Most lockouts don’t “just happen.” The controller almost always warns you...
Full-Size PCMS Comparison: Spyder Platform vs Traditional Message Boards
Comparison of Full-Sized, Full-Matrix Portable Message Boards This document...
Why Allowing a PCMS Slightly Canted Actually Costs You
Whether your message boards use a flat‑mounted solar deck or an Spyder...
Why Get Rid of Sandbags?
PCMS units often rely on sandbags for wind stability—sometimes 300–400 pounds...
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