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Traffic Control Equipment › Driveway Assistance Device (DAD)
Driveway Assistance Device (DAD) test
Designed for one-lane, bidirectional work zones where residential driveways intersect with active traffic, the DAD keeps vehicles moving safely without disrupting the signal cycle.
Smarter Control for Residential Work Zones
The Driveway Assistance Device (DAD) from Horizon Signal is designed to improve safety and efficiency in active work zones where residential driveways intersect with traffic. By providing clear, real-time direction to motorists, it helps reduce confusion, prevent unsafe entry, and maintain smooth traffic flow throughout the work zone.
Why Choose the Driveway Assistance Device
Flashing arrows clearly indicate the direction of traffic flow
Reduces overall signal cycle lengths
Full conflict monitoring at each device
No limit to the number of units within a work zone
Minimizes queues on mainline traffic phases
Designed to meet MUTCD compliance standards
Available in two form factors
Reduces the risk of wrong-way driving in work zones
Standards and Compliance for Work Zone Use
Managing residential driveways within a one-lane, bidirectional work zone has long been a challenge. The Driveway Assistance Device offers a proven solution by guiding drivers with clear visual signals that indicate the current direction of traffic.
As an advanced driveway traffic control system, this technology ensures that vehicles exiting driveways merge safely into the correct traffic stream, reducing delays and improving overall coordination.
How It Works
The Horizon Signal Driveway Assistance Device (DAD) is designed to manage residential driveways within a one-lane bi-directional work zone. Here’s how the system guides traffic safely and efficiently:
Sequential Operation
Each unit connects wirelessly to the signal system and updates in sequence as traffic moves through the work zone. Drivers receive real-time guidance based on current conditions.
Flashing Arrow Indications
The flashing-arrow traffic signal device clearly indicates the direction of traffic, allowing drivers to merge quickly and safely.
Solid Red Indication
A red signal is displayed when entry is not safe, clearly instructing drivers to stop and wait before entering the work zone.
Conflict Monitoring
Built-in dual-processor monitoring detects signal conflicts and automatically places the system into a safe state for reliable operation.
Advanced Features for Reliable Operation
Flashing Arrow Indications: Inform drivers of the current direction of mainline traffic flow at a glance.
Unlimited Driveway Coverage: One DAD unit is placed at each driveway, with no limit to the number of units within a work zone.
Reduced Cycle Lengths: Driveway vehicles join the active queue without disrupting the signal cycle, keeping traffic moving.
Wrong-Way Prevention: LED arrow guidance dramatically reduces the likelihood of drivers entering the work zone against traffic.
Full Conflict Monitoring: Each device features dual-processor MMS for automatic safe-state failover.
MUTCD Compliant: Meets all applicable Manual on Uniform Traffic Control Devices requirements.
Two Form Factors Available: Choose the platform that best fits your project's physical and logistical requirements.
Wireless Networked Operation: All units communicate wirelessly, enabling coordinated, sequential operation across the work zone.
Bring Smarter Control to Your Work Zone
As a solution for work zone driveway management, the Driveway Assistance Device helps contractors and traffic planners maintain access to residential properties without compromising safety or productivity.
Ready to improve safety and traffic flow in your work zone? Contact Right Traffic for pricing, product details, and expert guidance on deploying the Driveway Assistance Device.
Frequently Asked Questions
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It is used to safely manage vehicles entering and exiting residential driveways within active work zones, especially in one-lane traffic conditions.
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It provides clear visual signals that indicate when it is safe to enter traffic and which direction to follow, reducing confusion and preventing wrong-way driving.
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Yes, there is no limit to the number of units that can be deployed. They operate together as part of a coordinated system
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Yes, the device is designed to meet MUTCD standards for traffic control and safety.
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No, the system operates as part of a connected network and adjusts automatically based on traffic flow.
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It is ideal for residential areas within one-lane, bidirectional work zones where maintaining driveway access is critical.
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Right Traffic supplies dependable traffic control equipment for projects across the United States & Canada. If you’re interested in purchasing one or more of our products, complete the form below and our team will assist you promptly.
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