What Does a Blank Out Sign Display?

December 28, 2025

Blank out signs are useful traffic control devices that display symbols or messages in their illuminations. Here at National Sign & Signal, we offer blank out signs that have set the standard for ultra-bright, fail-safe traffic control applications.

In this month’s blog, we’re discussing what blank out signs display and why National Sign & Signal’s blank out sign is the most reliable for the job.

What do Blank Out Signs Display?

Blank out signs, also commonly known as lane control signs, display specific messages or symbols to drivers once they’re turned on. When they’re off, they’re obviously blanked out, hence the name.

These signs are commonly used for:

  • Lane control symbols like lane closures, reversible lane changes, or turn restrictions
  • Hazard warnings like road closures or over-height vehicles
  • Specific instructions like directions for weigh stations, detours, or prohibited items

Benefits of Blank Out Signs

Blank out signs also have many benefits for drivers when they’re used:

  • By providing clear and concise information, they help reduce driver confusion and potential accidents.
  • They can easily be updated or changed to adapt to changing traffic conditions or situations.
  • They can be seamlessly integrated with existing traffic management systems

Why Use NS&S Blank Out Signs

Here at National Sign & Signal, our signs can:

  • Display multiple necessary messages in all standard Institute of Transportation Engineers (ITE) colors
  • Have exceptional message visibility and clarity
  • Industry leading reliability and service

The bright LEDs make blank out signs a noticeable road sign for travelers, helping them to navigate roadways more safely and more easily. Other notable features of our blank out signs are:

  • 2-3x brighter than standard mercury vapor signs
  • Shatter-resistant fiberglass circuit boards
  • Tri-stud or rigid mounting available
  • 60,000 hr. LED life expectancy with minimal to no light degradation
  • Cool white 7500K LEDs with 120-degree spread
  • Color Rendering Index (CRX): 80
  • 720 Lumens or 5500 lux per sq. ft.

Help Drivers Steer with Our Blank Out Signs

If you’re looking for effective blank out signs to inform your city’s drivers, contact us at National Sign & Signal today!