The World’s Leading PTS System

The Versatile Portable Traffic Signal

The SQ3TS Portable Traffic Signal System combines fast efficient setup with highly reliable performance. The multitude of modular add-on components makes the SQ3TS the most versatile portable traffic signal system available today. The SQ3TS is the smart choice for a wide variety of short and long term traffic control applications. From a simple one lane bridge repair project to complete intersection control the SQ3TS has the attributes to provide safe efficient traffic control.

The Sq3TS Portable Traffic Signal meets and exceeds NEMA TS-5 specifications for Type TR1 PTS.

Component Options

Horizon Signals are engineered from the ground up to be component-based systems.  The SQ3TS is available with a wide variety of optional components, enabling you to meet your specific project requirements.  Click here for more information.

Innovative Applications

As the most versatile Portable Traffic Signal in the world, the SQ3TS is easily adapted to unique applications. For example, the system can be configured to wirelessly communicate with permanent intersection control systems in the event of a signal knockdown, traffic pattern reconfiguration, or nearby construction requiring synchronization of signals.  The SQ3TS’s quick and easy deployment means your intersection can be back up and running in no time.

Built To Last

Horizon Signal understands that work zones are harsh environments. That’s why the SQ3TS has been independently tested and certified to operate during extreme weather. The SQ3TS system can withstand sustained wind speeds of 100 mph and wind gusts of up to 110 mph — the highest ratings in the industry. Wind load tests have been calculated and verified by independent, third-party licensed engineers. In addition the SQ3TS achieves a 25 year design life on trailers and is backed by an industry leading ten year warranty.
Many Horizon Signal trailers built twenty years ago are still in operation today because of this heavy duty design. Plus bolt-on upgrade kits are available as software and system technology evolves.

Case Study

SDDOT asks, "How can we deploy traffic control for an event where a town's population grows by 1000% for one weekend a year?"

Read More

Innovative Advancements in Work Zone Safety Technology

SQ3TS Features and Benefits

  • Conforms to NEMA TS5 performance standards
  • Conflict monitoring
  • Video motion and in-ground loop actuation ready
  • Data logger records signal functions
  • Complies with AASHTO 90mph wind load requirement
  • Heavy duty trailer with 25-year design life
  • Durable aluminum signal heads
  • Secure reliable long range wireless communication system
  • Fast efficient setup
  • Tandem tow signal trailers with electric brakes
  • Heavy duty hydraulic lift system
  • Signal heads rotate 180 degrees
  • Lifting ring for lift and place deployment
  • Year round operation regardless of location or climate
  • 440 watts of solar collection capacity
  • Equipped with batteries sufficient for 30 day autonomous run time

MUTCD Recommended

17′ 9″ Vertical Clearance

One-touch Lifting Mechanism

Innovative Advancements in Work Zone Safety Technology

Component Options

Message Board Interface

A message board can be connected to the SQ3TS that provides motorists with an advanced notice of a signal ahead.

Remote Monitoring

Allows an authorized user to monitor an entire fleet of Portable Traffic Signals for location, voltage, operating hours and system status.

Pre-Emption System

Provides a green phase in the direction of an approaching emergency vehicle. Indication lights will confirm the system is functioning.

Wireless Knockdown System

Allows the SQ3TS to be wirelessly operated from a standard controller. The System allows for easy substitution of a permanent signal.

Video Detection

Combines performance, functionality and ease of use to provide non-intrusive true presence video detection.

Clearance Time Extension

Increases the programmed red time to allow for the remaining slower vehicles to clear the zone safely.

Display System

The Wait Time / Fault Display System (WTFDS) provides drivers with a visual to show the amount of time remaining before green.

Pilot Car Module

Allows a pilot car driver or flagger to operate the SQ2 System remotely using a hand held transmitter with selectable green times.