Components to Meet Your Requirements

Portable Traffic Signal Components to Meet Your Requirements



Clearance Time Extender

The Clearance Time Extension System increases safety in the work zone by detecting slow moving vehicles and extending the red clearance interval accordingly. If traffic has not cleared the work zone at the time the clearance interval expires, the Clearance Time Extension System will increase the programmed red time to allow for the remaining vehicles to clear the zone safely.  All green indications will be held until the system no longer detects traffic traveling through the work zone.


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Generator Enclosure

The Generator Enclosure add-on provides backup power for Horizon Portable Signal Systems operating in areas with limited solar collection capabilities. The unit features a lockdown coupler which allows for convenient storage on the rear of the Horizon Signal SQ3TS System, keeping the unit out of sight from passing motorists. The enclosure is designed to be used with a Honda EU2000i generator, which features quiet operation and low fuel consumption. The EU2000i’s 1.1 gallon fuel tank provides up to 10 hours of run time, depending on battery levels in the SQ3TS System. The Generator Enclosure component is available individually or as a package including the Honda EU2000i generator.


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Message Board Interface System

A message board can be wirelessly interconnected with a Horizon Portable Traffic Signal to provide the motorist with an advanced notice of a signal ahead. The wireless interconnect between the signal and the message board allows the message board to display the signal status of the Horizon portable traffic signal, i.e.…Red Signal Ahead, Proceed with Caution Works ahead etc…. The radio interconnect allows for fast efficient deployment and reliable service. The Message Board Interface System is compatible with most major full matrix message board systems.

The SQ3TS Portable Traffic Signal communicates via radio link with the message board. Custom messages can be programmed to alert the motorist of the signal status of the portable traffic signal ahead. Typically, when a signal goes to “Red” the Message board displays “Red Signal Ahead” to motorists and when the signal goes to “Green” The message board displays “Traffic Signal Ahead” to motorists. This ITS System is ideal for work zones with limited sight distance and new traffic patterns.


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Pedestrian Signal Indicators

The Horizon Signal Technologies Pedestrian Signal System includes MUTCD compliant indications exclusively intended for controlling pedestrian traffic. The signal indications consist of the illuminated symbols of a walking person (symbolizing walk) and an upraised hand (symbolizing don’t walk). The HST pedestrian signal indications can easily be integrated into our SQ3TS trailer mounted portable traffic signal or be furnished on a stand alone cart. In addition to being compatible with all Horizon portable traffic signal systems, the HST Pedestrian Signal System can be integrated into most NEMA compliant traffic signal controllers. Communication is accomplished via hardwire or wireless radio link.


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Pilot Car Module

The Pilot Car / Flagger Module allows a pilot car driver or flagger to operate a Horizon Signal System remotely using a hand held transmitter. The use of Horizon Signal Systems equipped with our Pilot Car / Flagger Module increases safety for both the worker and the motorist. The Pilot Car/ Flagger Module features two modes of operation, “timed” and “flagged” to allow for simple and efficient traffic control.

Three selectable green time options are available and can be selected by the pilot car operator via wireless remote.
The wireless remote allows the pilot car operator to select green time in 15 second increments based on traffic volume.


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Pre-Emption for Emergency Vehicles

Traffic Signal Pre-emption Systems have been developed to preempt the normal operation of traffic signal systems in order to provide a green indication in travel direction of emergency vehicles. The use of pre-emption systems on permanent traffic signals have reduced response times of emergency personnel and increased safety. Horizon Portable Traffic Signals can be equipped with a modular add-on pre-emption system. We have employed known proven technology to offer pre-emption as an option on all of our portable traffic signal systems.

The Horizon Pre-Emption System is activated by emergency vehicles equipped with appropriate optical emitters. Optional handheld emitters are available as required.

The emergency vehicle approaching the traffic light sends a signal via the optical emitter. The signal is received at the traffic light and triggers a pre-emption of the currently operating program. A confirmation light on the traffic light is illuminated providing a confirmation that the pre-emption command has been accepted. Conflicting traffic lights within the traffic signal setup are changed to red.

After appropriate red clearance, times expire the traffic signal in the direction of the approaching emergency vehicle will change to green allowing the emergency vehicle to move safely through the traffic signal setup. Once the emergency vehicle has cleared the area, the Horizon Signal System will resume normal operation after an all red clearance interval.


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Pre-Emption for Railroad Crossings

The Horizon Railroad Pre-Emption system preempts the active signal program in the event of a train intersecting the work zone. The system is activated by the railroad crossing gate controls via a hard-wired or wireless connection. All signals within the system revert to a solid red indication at the same time the railroad gates are activated by an oncoming train. The signals will remain in solid red mode until the train has safely cleared the work area, at which point the Horizon Signal system returns to normal operation. Horizon Portable Traffic Signals can be equipped with a modular add-on pre-emption system. We have employed known proven technology to offer pre-emption as an option on all of our portable traffic signal systems.

After appropriate red clearance, times expire the traffic signal in the direction of the approaching emergency vehicle will change to green allowing the emergency vehicle to move safely through the traffic signal setup. Once the emergency vehicle has cleared the area, the Horizon Signal System will resume normal operation after an all red clearance interval.


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Remote Monitoring System

The Advanced Remote Monitoring (ARM) system allows an authorized user to manage and monitor their fleet of Horizon Portable Traffic Signals, complete with location, run time, battery status, and system logs.

Users can remotely access program data and event logs from active signal systems outfitted with the ARM system. In the event of a system fault, the ARM system provides specific information concerning the source of the fault. This unique feature expedites the signal’s return to full operation. Daily status updates can also be configured to notify users of battery levels before voltages drop too low.

The Remote Monitoring System meets stndards set forth by NEMA TS-5 as a Remote Management and Notification System


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Transport Trailer for SQ2 Systems

The SQ2 Transport Trailer has been customized to provide secure storage for the SQ2 Portable Traffic Signal System and add-on components. It includes custom lockdown pegs to secure the SQ2 carts during transport, a one piece aluminum roof, plywood floor with custom painted guide lines, diamond plate stone guards and an interior lighting package . Additional structural supports have been added to ensure the SQ2 Transport Trailer is equipped to meet the demands of the work zone. It comes equipped with the necessary components to facilitate battery charging via any 110-volt external power source.


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Video Detection

Video Detection Systems offered by Horizon Signal Technologies for traffic actuation combine performance, functionality and ease of use to provide non-intrusive true presence detection. Highly sophisticated algorithms ensure accurate detection zones that can be configured to meet site specific requirements.

  • True presence detection
  • Non-intrusive above ground installation
  • Flexible detection zone placement
  • Multi-zone detection capability
  • Easy Installation and configuration
  • Optional Windows® based programming

The Video Detection System consists of a camera and processor system. The camera features high resolution, remote zooms, and focus functions. It is also equipped with a high sensitivity color imager to ensure accurate vehicle detection regardless of lighting conditions. The sophisticated processor helps ensure reliable true presence detection.

Non-intrusive detection zones are configured during the system setup process by utilizing the video imaging screen to determine the detection zone placement. After the detections zones have been created and placed in the traffic lanes, the system quickly learns the configuration, and begins real-time true presence detection.


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Wait Time, Fault Display System

The Wait Time / Fault Display System (WTFDS) provides drivers with a visual representation of the amount of time remaining before the next green indication. It is also configured to display a special message in the event of a signal error or fault, alerting drivers how to proceed, or to seek an alternate route.
The WTFDS’s primary application is one-lane, bi-directional work zones utilizing Horizon Signal SQ3TS systems. Consisting of only a variable message sign, and a simple connection to the Horizon PTS, the system provides a convenient and easy way to communicate with motorists.


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Wireless Knockdown System

The Wireless Knockdown System allows a Horizon Signal Portable Traffic Signal System to be wirelessly operated by a standard street corner controller. This system allows for a quick and easy temporary signal substitution of a permanent signal in the event of a knockdown, relocation, or traffic pattern reconfiguration. The Horizon Portable Traffic Signal can be connected to the street corner controller within 30 minutes.

  • Full Conflict Monitoring of Remote Signal
  • Communicates Up to ¼ Mile from Control Cabinet
  • Simple Wireless Connection from Horizon Signal Trailer to Street Corner Controller

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Wireless Remote Control

The wireless hand held remote is an option available with all Horizon Signal Systems.

The operation mode can be changed from the automatic to the manual mode and back to the automatic mode via the wireless handheld remote The wireless handheld remote provides a confirmation that a command has been accepted\. The rugged wireless handheld remote has a ½ mile range form the Master Remote Control Module.


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Cabled Toggle Control Switch

In addition to using the Micro-Terminal to manually cycle signals, an all-weather toggle switch is also available. The Cabled Toggle Control Switch is ideal for two phase work zone projects.

  • The cabled toggle control switch can be connected to any controller within the signal setup via a quick plug attachment.
  • The cabled toggle control switch is available in lengths that assure the operator can control the signal system from a safe convenient location.
  • Allows user to request green times without possibility of conflict

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Work Zone Luminaire

The Work Zone Luminaire increases safety within the work zone by illuminating the portable traffic signal trailer and associated work area during periods of low visibility. A photocell sensor automatically activates the light at dusk, and deactivates it at dawn for convenient, automatic operation.


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