Put an end to roadside worker fatalities, with the Guardian SmartFlagger
Save lives with the Guardian SmartFlagger
Every day, roadside workers face deadly risks. Prevent tragedy with the Guardian SmartFlagger.
Every year, hundreds of roadside workers never make it home. That’s not just a number—it’s lives lost. Enough is enough. The Guardian SmartFlagger takes your crew out of harm’s way and puts safety first.
How? Using modern technology and superior design, the Guardian SmartFlagger makes traffic control safer by taking flaggers out of harm's way, while bringing less traffic to your job site, increasing driver compliance of those who do, and immediately alerting workers if there is a work zone intrusion.
Don't wait until it's too late. Book a demo today.

The Guardian SmartFlagger
1 Person + 1 Truck + 1-2 GSF Set(s) = 1 Team
Cutting-edge solutions designed to enhance safety, productivity, and profit.
Remotely operate and monitor the work zone with one flagger
Not Your Traditional AFAD
The most advanced Automated Flagging Assistance Device (AFAD) on the market. Make your traffic control operations safer and more cost-effective with the cornerstone of Site 20/20’s game-changing approach to traffic control.
At just 24″ wide and 155 lbs., the Guardian SmartFlagger is the smallest, lightest AFAD in the industry, making it easy for one flagger to transport, deploy and operate with one truck to any job site.
On-board cameras with night vision provide a live 360-degree view, giving you complete visibility of traffic on both sides of your work zone. What’s more? Store up to 80 hours of footage for later review and to help resolve on-site disputes.

Advanced Technology for Maximum Safety & Efficiency
Remotely Operated, Away from Danger
- When you enter a work zone with the Guardian SmartFlagger in use, you’ll notice one important thing: no humans in front of traffic. Using a tablet and live video monitoring, one operator can manage up to four units from a safe distance within the work zone.
Video Surveillance Improve Driver Compliance
- Drivers are more like to comply with traffic control when they see the Guardian SmartFlagger’s cameras. As well, with 72 hours of on-board video storage, your liability is reduced with the ability to create a record and review incidents after the fact.
Advanced Connectivity
- Site 20/20’s Guardian SmartFlagger uses GPS and a 5-way antenna to provide maximum connectivity to dependably run your traffic control operation. Local LAN and live traffic integration allow for remote operation to run the job safely from inside the truck and monitor remotely from the office.

Don't wait until it's too late, book a demo today!
Secure a better return on investment
Upgrade Your Operations
Our advanced solutions, with the Guardian Smart Flagger as the foundation, streamline operations, turning your variable costs into fixed ones. Improve your ROI today and make your traffic control operations more productive and cost-effective.
Click here to book a demo and get a free ROI audit.
Frequently Asked Questions
Can the Guardian SmartFlagger (GSF) system work on mobile or dynamic work sites?
- Yes! The GSF system is designed to be versatile and quick to set up, even by newly trained operators. It can be ready in under 10 minutes, making it suitable for static sites, short-term projects, or mobile utility work.
What traffic volume is the GSF System approved for?
- The GSF is approved for any situation where human flaggers are allowed. Specific regulations vary by state or province; we work directly with local DOTs to ensure compliance. If needed, we'll provide documentation to support approval.
What support is available if I lease the system?
- Leasing provides 24/7 customer support, covering repairs, updates, and even replacements due to wear and tear. Our team also assists with compliance and operator training, ensuring your Guardian SmartFlagger unites are fully utilized.
Can I fit the system in a single truck with other equipment?
- While the system itself is compact enough to fit 2 side by side in a standard truck bed, many companies use hitch mounts or trailers to transport GSFs along with signs, cones, and other tools. These options streamline logistics and make transportation easy.
What sets the Guardian SmartFlagger apart from competitors?
- The GSF system includes unique features not offered by competitors, such as single-operator setup, real time intrusion alarms, recorded video, and advanced integrations. Combined with personnel savings, the system delivers unmatched ROIs.