The Portable Traffic Signal
Leader Since 1988.


SQ2 Portable Traffic Signal

SQ2® System

The SQ2 Pedestal Mount Portable Traffic Signals is designed for fast deployment and is ideal for daily and short-term traffic control applications. Quickly set up a lane closure for maintenance work, signalize a haul road, or even use them as a temporary ramp meter. The possibilities are endless.

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SQ2T Portable Traffic Signal

SQ2T® System

The SQ2T Trailer Mounted Portable Traffic Signal Lights are perfect for medium to long-term deployments.  With a larger battery bank and integrated solar panel, the SQ2T PTS System offers all the benefits of the standard SQ2, with the added flexibility of a trailer towable unit.

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SQ3 Portable Traffic Signal

DAD System

The Driveway Assistance Device (DAD), engineered exclusively by Horizon Signal Technologies, has been designed to address the need to control residential driveways that fall within one-lane work zones.

The Driveway Assistance Device is the only system on the market today that can maintain signaling in multiple driveways in a work zone simultaneously. The DAD keeps cycle times low while maintaining a high level of safety.

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SQ3 Portable Traffic Signal

SQ3TS® System


The SQ3TS Trailer-Mounted PTS is the most dynamic and dependable signal available today.  With a multitude of add-on components, and a 25-year design life, the SQ3TS Portable Traffic Signal is the work zone workhorse that you can rely on year after year.   From a simple one-lane bridge repair project, to complete intersection control, the SQ3TS System has you covered, under even the most demanding conditions.

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SQ3 Portable Traffic Signal

Engineered Systems


HST engineers have spent over 30 years custom making portable traffic signal systems to meet just about any need. Our team is here and available to help. Contact us today to find out more.

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We Design, Manufacture, and Supply
The Most Powerful Portable Traffic Signals
In The World.

Why Choose Horizon?

Our systems deliver the versatility and reliability that is vital to the traffic control industry.

We back each and every signal we produce with unmatched service and support.

Our network of key regional distribution, maintenance and support centers throughout North America mean you will receive your system on time, every time.

Regional Centers:

  • Philadelphia, Pennsylvania
  • Birmingham, Alabama
  • Chicago, Illinois
  • Fargo, North Dakota
  • Indianapolis, Indiana
  • Waco, Texas
  • Phoenix, Arizona
  • St. Catharines, Ontario
  • Nationwide Local Distribution Network

 Horizon Portable Traffic Signal Systems conform to U.S. State DOT and Federal Guidelines. Our signals also meet Canadian Provincial DOT and MTO requirements.

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Read how Horizon Signal engineers have helped build solutions for some of the toughest traffic control problems  by using state of the art Automated Traffic Management Systems designed to bolt on to new or existing Horizon Signal Portable Traffic Signal Systems.

Alert motorists entering a one-lane work zone to the direction of traffic.
Driveway Assistance Device
Control event traffic even when population swells by 1000%.
Sturgis Motorcycle Rally