Guiding Drivers Through Dangerous Curves With A True-To-Shape Chevron Sign

Sequential Chevron and Curve Warning systems are the ideal MUTCD Compliant solution being deployed on roads and highways that have the potential for crashes resulting from vehicle lane departures.

Most curve-related injuries and fatal crashes involve single vehicles leaving the roadway and striking fixed obstacles.  The greatest number of fatalities don’t necessarily occur on highways but rather occur on rural county or urban conventional roads.

Our Sequential Chevron System is engineered to give drivers a higher level of visual guidance when approaching these curves.  This is being successfully accomplished through an Effective 15° Angularity.

Multiple chevron signs in a single location are configured in a single wireless network and flash sequentially in the direction of traffic.

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Lightning Fast Installation

Less planning, more warning- our Curve Warning System retrofits to the existing signs and infrastructure on the road. Go live in a hurry with installation as easy as installing the signs you’re enhancing.

We’ve taken care of the MUTCD compliance- our flash patterns, sequencing, and illumination technique are truest to the intent of the standards.

We offer a variety of solar engines integrated with our controlling hardware onboard, all engineered in house with uncompromising specs that balance cost, reliability, and efficiency.

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Incredible Specs

  • Intelligent Solar Charging to maximize available sunlight

  • 3000′ Wireless Collaboration for sequencing around any curve

  • Ultra dense LED panel maintains MUTCD Chevron shape even if LEDs are damaged

  • Solar engine, flashing control, collaborating radio all unified in a single box

  •  Full configuration utility accessible via Wi-Fi, no download required

The TraffiCalm™ Curve Warning System is engineered for ease-of-use and ultimate reliability. Where applicable, all electronics are hermetically sealed to maximize weather resistance exceeding a Nema 4X rating

Specifications and Details

All TraffiCalm Warning and Chevron components are designed to easily adapt and mount to existing infrastructure … including existing signage.

One-piece hermetically sealed LED flasher plate providing the ultimate protection against the elements.

Full-length flasher plate made of .080″ 5052 highway grade aluminum and powder coated black for long-term durability.

New for 2021! TxDOT 6350 Compliant Cloud-Connected Controllers provide centralized access to remote devices.


80 LEDs on an 18×24 W1-8 Chevron

112 LEDs on a 24×30 W1-8 Chevron

128 LEDs on a 30×36 W1-8 Chevron

160 LEDs  on a 36×48 W1-8 Chevron

High-Quality LEDs rated for 100,00 hours

1,000,000 millicandella total sign output (nominal daylight maximum)

LEDs specifically wired in string to activate simultaneously (required by the MUTCD)

All LEDs will continue to flash in the event of an individual LED failure

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