How does a flashing yellow left-turn arrow work?

A flashing yellow arrow means that left turns are permitted, but drivers must first yield to oncoming traffic and pedestrians and then proceed with caution. The flashing yellow means the same thing as the green "ball" indication for a yielding left turn. The flashing yellow arrow does not replace the solid yellow arrow and its meaning.

  • Solid green arrow = Left turns have the right-of-way
    • Drivers may proceed and must turn left.  Oncoming traffic and pedestrians are stopped.
  • Flashing yellow arrow = Turns are permitted when there are acceptable gaps in traffic
    • Drivers must yield to oncoming traffic and pedestrians, then proceed with caution.
  • Solid yellow arrow = Signal is about to change to red
    • Drivers may only complete their turn if they legally entered the intersection and there are no conflicting vehicles or pedestrians.
  • Solid red arrow = Stop
    • Drivers turning left must stop.

Show All Answers

1. What do I do when I see a dark or flashing traffic signal?
2. What happens to Jefferson County traffic signals when they lose power?
3. Who regulates traffic in Jefferson County?
4. Who builds and maintains traffic signals in Jefferson County?
5. How do traffic signals work?
6. Who maintains flashing school zone beacons?
7. How does the county decide when a traffic signal should be installed? Will a traffic signal reduce accidents at an intersection?
8. What is the purpose of cameras at signalized intersections?
9. Are traffic signals in Jefferson County coordinated to reduce or eliminate the need to stop at red lights?
10. Once a driver turns onto a street where the traffic signals are coordinated, is it correct that the driver should not have to stop?
11. Do any traffic signals not run in coordination with other traffic signals?
12. Why is there a “Walk” symbol when no pedestrians are present?
13. How do signals for pedestrians work?
14. Why do I have to wait so long to get a green light or a “Walk” signal?
15. Do emergency vehicles get priority at signalized intersections in Jefferson County?
16. Is it possible for two conflicting directions of traffic at a signalized intersection to receive green lights at the same time?
17. How does a flashing yellow left-turn arrow work?