When you approach a HAWK signal, the rules for drivers are simple once you know the sequence: a dark signal means proceed normally, a flashing yellow means slow down, a steady yellow means prepare to stop, two solid red lenses mean stop and stay stopped, and alternating flashing red lenses mean stop and then proceed like a stop sign if the crosswalk is clear. The whole device stays dark until a pedestrian pushes a button, so most of the time you drive through at normal speed with no signal to obey at all.1Federal Highway Administration. Pedestrian Hybrid Beacons
A Dark Signal Means Go
The HAWK signal head does not look like a normal traffic light. Three circular lenses sit in a rough “T” shape: two red lenses side by side on top, with a single yellow lens centered below them.2Federal Highway Administration. Manual on Uniform Traffic Control Devices 11th Edition – Part 4 There is no green. Between pedestrian activations, every lens is off, and that dark state is your signal to drive through at normal speed. Drivers unfamiliar with the device sometimes slow or stop at a dark HAWK signal expecting a green to appear. It won’t. Dark means you have the right of way.
The cycle only begins when someone pushes the call button at the crosswalk.1Federal Highway Administration. Pedestrian Hybrid Beacons That press starts a timed sequence that moves through four phases before shutting back off.
The Four Active Phases
Flashing Yellow: Slow Down
The bottom yellow lens starts flashing first. A pedestrian has requested the crossing, and the signal is winding up. Ease off the accelerator and get ready to stop. The length of this interval is set by local traffic engineers based on conditions at each location.2Federal Highway Administration. Manual on Uniform Traffic Control Devices 11th Edition – Part 4
Steady Yellow: Prepare to Stop
The flashing stops and the yellow lens holds steady. This works the same as yellow at any traffic light. Stop at the marked stop bar unless you’re already too close to stop safely. Entering the crosswalk after this interval expires is a traffic violation under the standard signal laws that apply to any yellow-to-red transition.
Steady Double Red: Full Stop, No Turns
Both top lenses light solid red, and the pedestrian gets a Walk symbol. All vehicles must stop at the stop bar and remain stopped. One important difference from a normal red light: there is no right turn on red at a HAWK signal. The two solid reds mean a pedestrian is actively entering the roadway, and you cannot proceed in any direction, including turning, until the signal changes.2Federal Highway Administration. Manual on Uniform Traffic Control Devices 11th Edition – Part 4
Alternating Flashing Red: Stop, Then Go if Clear
After the Walk interval ends, the two red lenses begin flashing in an alternating “wig-wag” pattern. On the pedestrian side, a flashing Don’t Walk countdown tells anyone in the crosswalk to finish crossing. For drivers, this phase operates under stop-sign rules. Come to a complete stop at the stop bar, then proceed if the crosswalk is clear of pedestrians.3Federal Highway Administration. Manual on Uniform Traffic Control Devices 11th Edition Turns are also permitted after stopping, the same as at any stop sign.
This is where most driver mistakes happen. Some sit through the entire flashing red waiting for a green that never comes. Others roll straight through without stopping because they don’t recognize the alternating pattern. Neither is correct. Stop fully, check the crosswalk, and go when it’s clear.1Federal Highway Administration. Pedestrian Hybrid Beacons If a person is still in your side of the crosswalk, wait.
After the alternating red ends, all three lenses go dark and traffic returns to normal flow until the next button press.2Federal Highway Administration. Manual on Uniform Traffic Control Devices 11th Edition – Part 4
Multi-Lane Roads With a Median
HAWK signals usually sit on wide, multi-lane roads, so the question of exactly when you can go during the flashing red phase matters. You may proceed after stopping once the pedestrian has cleared the travel lanes on your side of the road. If a raised median or refuge island separates the directions of travel, you don’t have to wait until the pedestrian reaches the far curb.
On divided roads with a median wide enough for pedestrians to wait safely, the signal timing can run independently for each direction of traffic.4Federal Highway Administration. Manual on Uniform Traffic Control Devices 11th Edition You might get the all-clear while a pedestrian is still waiting in the median for the opposite direction to cycle.
Don’t Confuse It With a Rectangular Rapid Flashing Beacon
Rectangular Rapid Flashing Beacons (RRFBs) are different devices with different rules. An RRFB is a bright yellow LED bar attached to a crosswalk warning sign, usually at eye level on both sides of the road, flashing to get your attention. At an RRFB, your duty is to yield to pedestrians in the crosswalk. At a HAWK signal, red means stop. Running a flashing red HAWK signal without stopping carries the same consequence as running a stop sign, not the lower consequence of failing to yield.
If you’re not sure which one you’re looking at: HAWK signals hang overhead on a mast arm with the two-over-one red-and-yellow lens arrangement. RRFBs are rectangular yellow light bars mounted on the sign post itself. HAWK signals are typically installed on roads with speeds at or above 40 mph; RRFBs tend to appear on slower roads.
Penalties for Running a HAWK Signal
Because a HAWK signal is a traffic control device, violating it draws the same category of citation as any other signal or sign violation. Driving through during the steady double red is charged as a red-light violation. Driving through the alternating flashing red without stopping is charged as a stop-sign violation.
Specific fines and points vary by state. In most jurisdictions, a red-light or stop-sign ticket runs roughly $100 to $500, with points that count toward license suspension thresholds. Repeat offenses escalate. If a violation results in hitting a pedestrian, the exposure jumps sharply and can include reckless driving charges, license suspension, and civil liability for the pedestrian’s injuries. Enforcement at these locations tends to be strict for a straightforward reason: the only time the light is red is when a person is physically in the road.