CMS Board
What’s a CMS Board?
A CMS Board, or Changeable Message Sign Board, is a display mounted on the truck that transmits work zone location data to approaching motorists.
What It Does:
- Alerts drivers to upcoming work zones or hazards
- Improves road safety by providing real-time information
- Enhances visibility for drivers in low-visibility conditions
- Mounted on the upper rear section of the truck
- Can display customizable messages for different scenarios.
- Often integrates with traffic management systems
Mounted on the sides of the bed
- Mounted on the sides of the bed
- Can be placed on one or both sides
Available Types:
- Standard CMS Board – Basic model for essential messaging
- LED CMS Board – High-visibility option with brighter displays
- Solar-Powered CMS Board – Eco-friendly with extended runtime


Additional information:
Western Highways Traffic Safety Products emphasizes top-notch safety devices that protect drivers while maintaining visibility, suggesting their CMS Boards are designed with high-quality fit and finish to ensure reliability in highway work zones. These boards are likely compliant with federal highway safety standards, such as those set by the Federal Highway Administration (FHWA), ensuring they meet visibility and readability requirements for day and night use.
Practical Application:
In a busy highway work zone, the CMS Board might display messages like “SLOW DOWN – WORKERS AHEAD” or “MERGE LEFT – LANE CLOSED,” helping to reduce the risk of accidents in areas with heavy traffic.