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Traffic Control

Georgia DOT provides local governments, engineers and citizens with general information about traffic control on state maintained highways. 


Dial 5-1-1 to Report Signal Outage


Georgia DOT is committed to providing travelers with an efficient and operational transportation system.  Traffic signals are an essential component to keeping traffic flowing smoothly on our roadways.  If you see a broken traffic signal please call the 511 system  at 5-1-1 or 1-877-MY-GA-511 to report the outage to a Georgia DOT representative.   


Regional Traffic Operations





 Traffic Signals


Signal Design

Signal Design Guidelines

Public Information

Traffic Signals Public Information Document


Traffic Signals Public Information Document

 Red Light Photo Enforcement

RLRPES Locations

Red light running systems are designed to improve safety and promote compliance at signalized intersections.  Installation and operation of Red-Light-Running equipment shall comply with all State Laws including Title 40 Code Sections 40-6-20, 40-14-20, 40-14-21, 40-14-22, 40-14-23, 40-14-24, 40-14-25 and 40-14-26 of the Official Code of Georgia.


Guides & Resources

Contact Information

Paul DeNard, P.E.
General Operations Manager
(404) 635-2843


 Ramp Meters


Ramp Meter LocationsThe Ramp Meter Program was implemented to alleviate congestion and emphasize motorist safety. Ramp Meters are traffic signal devices located on entrance ramps to the freeway. They regulate the frequency of vehicles entering the flow of traffic on a freeway.   The meters work similar to traffic signals with a red and green light. All vehicles must stop when the light is red. Vehicles are only permitted to move onto the freeway when the signal turns green.


  • Reduced congestion on the freeway
  • Decreased fuel consumption
  • Maintain steadier flow on the interstate
  • Increase freeway speeds

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 Quick Links


Diverging Diamond Interchange (DDI)

I-285 at Ashford Dunwoody Road

The DDI is an innovative design that shifts the flow of traffic to the opposite side of the road to imporve traffic congestion and safety.  

DDI Project Website