Traffic Signs (MUTCD R-Series) - Federal & DOT Compliant

Traffic Signs for Roads, Facilities, Parking Lots, and Private Property.

TrafficSafetyHQ supplies durable, compliant traffic signs built for commercial, municipal, and private property use. Contractors, property managers, HOAs, schools, and facility operators rely on our signs because they meet industry standards, install cleanly, and hold up under constant weather, UV exposure, and daily vehicle impact zones. Every sign is manufactured on heavy duty aluminum with long life reflective sheeting for clear visibility during day, night, and poor weather conditions.

Our catalog covers the full range of regulatory, warning, and guide signs required for roadway safety and onsite traffic control. Whether you are marking intersections, directing vehicles, controlling speed, identifying hazards, or organizing internal traffic flow on private property, our signs are built to perform in high stress environments. We supply the same specifications used across public roads and DOT governed projects, making them appropriate for commercial lots, industrial yards, campuses, hospitals, and retail centers.

Signs are available in multiple sizes, reflectivity grades, and mounting hole patterns to match U channel, square, and breakaway post systems. With professional materials and clean manufacturing, TrafficSafetyHQ ensures consistent quality, accurate messaging, and long term durability.
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Comprehensive Guide to Regulatory Signage (The R-Series)

Regulatory Signs are the primary legal instruments of the roadway. Unlike yellow warning signs (which advise of hazards) or green guide signs (which provide directions), Regulatory Signs inform road users of traffic laws or regulations. Violation of these signs typically constitutes a legal infraction. Under the Manual on Uniform Traffic Control Devices (MUTCD), these signs must adhere to strict standards of shape (vertical rectangle), color (black/red on white), and retroreflectivity to be enforceable in court.

The R-Series Classification Index

To navigate the federal code, Regulatory Signs are grouped by function:

  • R1 Series (Right-of-Way): The highest priority signs, including Stop, Yield, and Pedestrian Crossing. These define who has the right to proceed.
  • R2 Series (Speed): Includes Speed Limit, Night Speed, and Truck Speed restrictions.
  • R3 Series (Lane Usage): Critical for intersection control, covering No Left Turn, No U-Turn, One Way, and HOV lanes.
  • R5 Series (Exclusion): Prohibits entry to specific traffic types, such as Do Not Enter, Wrong Way, and No Trucks.
  • R7 & R8 Series (Parking): The most common signs for private property, covering No Parking, Tow-Away Zones, and Fire Lanes.

Reflectivity & DOT Compliance

To be legally valid at night, all Regulatory Signs must use Retroreflective Sheeting.

  • High Intensity Prismatic (Type IV): The FHWA standard for all public right-of-way signage. Its micro-prismatic optics reflect headlights from wide angles, ensuring legibility from 500+ feet away.
  • Diamond Grade (Type XI): Recommended for critical R1 signs (Stop/Yield) in high-speed or unlit rural environments.

Private Property Requirements

A common misconception is that private roads (HOAs, Malls) can use "novelty" signs.

  • The Reality: If a private road is open to public travel, it is subject to MUTCD standards. Using a non-compliant "Stop" sign (e.g., wrong font, small size) can void traffic enforcement agreements with local police and increase liability in the event of an accident.

Frequently Asked Questions

Common questions regarding MUTCD compliance, installation standards, and material specifications for regulatory signage.
What is the difference between a Regulatory Sign and a Warning Sign?

Color and Legal Weight. Regulatory signs are White with Black/Red text (or Red Octagons). They state a Law (e.g., "Speed Limit 55"). Warning signs are Yellow Diamonds. They state a Hazard (e.g., "Curve Ahead"). You get a ticket for disobeying a Regulatory sign; you get into an accident for ignoring a Warning sign.
What gauge aluminum is required for street signs?

For post-mounted signs on public roads, the DOT standard is .080" gauge aluminum. This thickness provides the structural rigidity to withstand 90 MPH wind loads without bending. Thinner .040" aluminum is acceptable for wall-mounting, but will fail if mounted on a post in an open area.
Are your signs legal for public highways?

Yes. All our Regulatory Traffic Signs are manufactured to MUTCD 11th Edition and FHWA specifications. We use 3M™ reflective sheeting and 5052-H38 marine-grade aluminum. They are fully compliant for use on City, County, State, and Federal roadways.

Need specific code assistance?

If your project requires a specific State DOT certification or a specialized variation not listed here, please contact our Compliance Support Team for a custom specification sheet.