A flashing yellow arrow means you may turn in the direction the arrow points after yielding to oncoming traffic and pedestrians. You do not have the right-of-way, and you do not need to stop. The signal is telling you to find a safe gap and proceed with caution.
Permissive, Not Protected
Traffic engineers call this a permissive turn. You’re allowed to go, but oncoming traffic has a green light at the same time, so judging whether you can clear the intersection safely is your responsibility. The Manual on Uniform Traffic Control Devices defines the signal’s meaning as: proceed with caution in the direction of the arrow, yielding to pedestrians and other vehicles in your path.1U.S. Department of Transportation, Federal Highway Administration. MUTCD 11th Edition – Section 4A.04
This is not a solid green arrow. On a green arrow, opposing traffic is stopped and the turn is yours. On a flashing yellow arrow, opposing traffic is coming toward you, and if you misjudge the gap the collision is almost certainly your fault.
How to Make the Turn
The most common mistake is treating the flashing yellow arrow like a stop sign. It isn’t. The signal requires yielding, not stopping. Stopping backs up the drivers behind you and invites a rear-end collision. Pull into the intersection, watch for a gap, and turn when it’s safe.
Before you commit, check two things: oncoming vehicles close enough to be a hazard, and pedestrians in or approaching the crosswalk you’ll cross during the turn. You have to yield to both.2Manual on Uniform Traffic Control Devices (MUTCD). Chapter 4D Traffic Control Signal Features – Section 4D.04 If traffic is heavy and no gap opens before the signal changes, don’t force it. Wait for the next cycle.
Pedestrians deserve extra attention. While you’re hunting for a gap in oncoming cars, people may be crossing the street you’re turning onto. Splitting your focus is where drivers get caught out. Scan the crosswalk before you commit, not after.
What Happens When the Signal Changes
A flashing yellow arrow doesn’t stay on indefinitely, and knowing what comes next keeps you from getting caught mid-intersection.
If your lane is about to go red, the flashing yellow arrow switches first to a steady yellow arrow. That steady yellow is the warning: finish the turn if you’re already in the intersection, or prepare to stop if you haven’t entered.2Manual on Uniform Traffic Control Devices (MUTCD). Chapter 4D Traffic Control Signal Features – Section 4D.04
At intersections running a protected-permissive sequence, the signal can jump straight from a flashing yellow arrow to a solid green arrow. When that happens, oncoming traffic gets a red light and your turn becomes protected. The FHWA requires this switch to happen without a steady yellow in between, because a yellow signal sandwiched between two “go” phases would confuse drivers.3U.S. Department of Transportation, Federal Highway Administration. Interim Approval for Optional Use of Flashing Yellow Arrow for Permissive Left Turns (IA-10)
How the Four Arrow Signals Differ
Four arrow indications can appear in a turn signal head, and each one means something different.
- Solid green arrow: a protected turn. Opposing traffic is stopped. Watch for pedestrians already in the crosswalk, but you have the right-of-way over oncoming vehicles.2Manual on Uniform Traffic Control Devices (MUTCD). Chapter 4D Traffic Control Signal Features – Section 4D.04
- Flashing yellow arrow: you may turn, but oncoming traffic has a green light. Yield to all vehicles and pedestrians before proceeding.2Manual on Uniform Traffic Control Devices (MUTCD). Chapter 4D Traffic Control Signal Features – Section 4D.04
- Solid yellow arrow: the current phase is ending. Finish the turn if you’ve already entered the intersection; otherwise prepare to stop.2Manual on Uniform Traffic Control Devices (MUTCD). Chapter 4D Traffic Control Signal Features – Section 4D.04
- Flashing red arrow: treat it like a stop sign. Come to a complete stop, then turn when traffic and pedestrians are clear.2Manual on Uniform Traffic Control Devices (MUTCD). Chapter 4D Traffic Control Signal Features – Section 4D.04
The dangerous confusion is between the flashing yellow and the solid green. A solid green means you’re protected. A flashing yellow means you’re permitted but exposed to oncoming traffic. The flashing motion is the clue: the intersection is shared.
U-Turns
The MUTCD’s definition of the flashing yellow arrow covers vehicles making U-turns, so a U-turn on a flashing yellow arrow is legal under the same yielding rules that apply to left turns.2Manual on Uniform Traffic Control Devices (MUTCD). Chapter 4D Traffic Control Signal Features – Section 4D.04 A local “No U-Turn” sign overrides this. The arrow doesn’t give you permission to ignore a posted prohibition.
If You Don’t Yield
Running a flashing yellow arrow without yielding is treated as a failure-to-yield violation in most jurisdictions. Specific fines and point penalties vary by state and municipality, but a ticket typically means a fine and points on your driving record. If the violation causes a crash, the penalties climb and you face civil liability for injuries and property damage.
When a turning driver collides with an oncoming vehicle during a permissive turn phase, the turning driver usually carries the primary fault. The reasoning is direct: the flashing yellow arrow explicitly required you to yield, so a collision with oncoming traffic is strong evidence you turned when it wasn’t safe.
Fault isn’t always one-sided. If the oncoming driver was speeding, ran a red, or was driving without headlights at night, part of the blame can shift. Most states apply some form of comparative negligence, so each driver’s share of fault affects what they can recover. In a few states, any fault on your part bars you from recovering damages at all.
If you’re not sure you have the room, wait. Being right about the gap doesn’t help if you turn out to be wrong, and the legal presumption starts against you.