The Ideal Flagger Safety PTS System

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SQ2® NCHRP 350 TL-3 Accepted Portable Traffic Signal

SQ2® Type TR2 PTS
A True Alternative to Flagging

The SQ2 Portable Traffic Signal System has been designed for fast, efficient deployment without sacrificing quality or versatility.  The software-based operating system conforms to NEMA performance standards and features an integrated conflict monitor, programming storage, and is actuation ready.  Failsafe programming is quick and easy with options for fixed time, actuated, or fully manual modes.  The SQ2 system is ideal for daily or short term traffic control applications, as it provides increased work zone safety while maximizing traffic flow.

The SQ2 Portable Traffic Signal meets and exceeds NEMA TS-5 specifications for Type TR2 PTS.

NCHRP 350 TL-3 Accepted

The Horizon SQ2 is the only Portable Traffic Signal System (PTSS) available that meets NCHRP Crash Testing Level 3 requirements.

Component Options

Horizon Signals are engineered from the ground up to be component-based systems.  The SQ2 is available with a wide variety of optional components, enabling you to meet your specific project requirements.  Click here for more information.

NCHRP 350 TL-3 Portable Traffic Signal

Essential Work Zone Equipment

The SQ2 Portable Traffic Signal

  • Fully MUTCD and NCHRP 350 compliant
  • Conforms to NEMA TS5 performance standards
  • Data logger records signal functions
  • Durable aluminum signal heads
  • work zone indication light provides visual cues within work area
  • Secure reliable long range wireless
  • Setup and operational in minutes
  • Heavy duty signal carts
  • Controls multiple traffic phases
  • Solar collection option
  • Optional outrigger package
  • Optional custom transport trailer
  • Actuation ready

SQ2 NCHRP 350 TL-3 Accepted

NCHRP 350 TL-3 Accepted

Although trailer mounted portable traffic signals are exempt from crash testing, the FHWA has determined that temporary traffic signals mounted on pedestals must be crash tested:
“Temporary traffic signals mounted on bases or pedestals are considered Category II work zone devices as they are similar in overall configuration to portable sign stands that are routinely crash tested.”

The SQ2 has been successfully tested to NCHRP-350 Test Level 3 crash testing requirements by an accredited independent test facility. The successful test report shall has been accepted by the FHWA with supporting documentation available upon request.

NCHRP 350 TL-3

The Only Accepted NCHRP 350 TL-3 Category II Device

Easy To Deploy & Remove From any Job Site

The Global Standard for Mobile Traffic Control Zones

SQ2 Applications

Component Options

  • Transport Trailer

    Portable Traffic Signal System Transport Trailer

    Includes lockdown pegs, custom flooring with painted guide lines, diamond plate stone guard and structural supports.

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  • Solar Package

    Portable Traffic Signal System Solar Charging

    Use this option to increase battery run time. Also includes the cart outrigger package to add stability and expedites cart leveling.

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  • Remote Control

    Portable Traffic Signal System Control Options

    Can be used in wireless or wired configurations. Wireless range is .5 mile. Wired can be ordered with a 25ft or 50ft cable.

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  • Outrigger Package

    Portable Traffic Signal System Outrigger Package

    Designed to enhance windload capacity and for ease-of-leveling on uneven ground. The outrigger package is can be installed on any SQ2 Cart.

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  • Remote Montioring

    Portable Traffic Signal System Transport Trailer

    Allows an authorized user to manage and monitor location, run-time battery status and system logs for their fleet of SQ2 Signals.

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  • Third Battery

    Additional Battery for Portable Traffic Signal Systems

    A third 12V battery can be included to increase run time by 30%. An third battery also increases ballast to enhances wind load capacity.

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  • Pilot Car Module

    Portable Traffic Signal System Transport Trailer

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

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  • Cabled Toggle Switch

    Portable Traffic Signal System Transport Trailer

    Allows  a flagger to operate the SQ2 System remotely from up to 100 ft. (30m) away using a hand held transmitter with selectable green times.

    Get Brochure

Want to find out more about portable traffic signals in your area?