Its Morse Code, there are many combinations of letters and numbers to create sentences, best of all it's internationally recognised (all ship officers should understand morse, as per STCW 95)
A flashing red traffic light is used the same way as a stop sign. You treat a flashing red traffic light the same way you do as a stop sign. If the traffic light is "blacked-out", it's to be treated as an all-way stop. What I do when I come up to a flashing red traffic light, I look at the cross-traffic signals to see if they're also flashing red, or if they're flashing yellow to see if they stop or if they don't stop.
No, they do not have traditional turn signals but have flashing lights.
A flashing green light indicates that you can proceed into the river lock. This signal means it is safe to enter and that the lock is ready for you. Always ensure to follow any additional signals or instructions from lock personnel for a safe passage.
A flashing yellow arrow in traffic signals means that you can turn left, but you must yield to oncoming traffic and pedestrians.
If you mean the light gun signals from the control tower- to vehicles, and aircraft on the ground, get off the runway. For aircraft in flight, runway is unsafe, do not land.
A flashing green and red light on a tower typically indicates specific operational or safety signals. The green light often signifies that the tower is operational or that conditions are safe, while the red light may indicate a warning or alert status. These signals can vary depending on the type of tower—such as communication, aviation, or maritime—and local regulations. It's important to consult relevant guidelines or authorities for precise interpretations.
It's legal but redundant since the four-way flashing signals are quasi stop signs.
A flashing green light typically indicates that a vehicle is allowed to proceed with caution, often seen at certain traffic signals or in emergency vehicle situations. It may also signal the presence of a pedestrian crossing or indicate that a traffic light is about to change. In some contexts, such as aviation, a flashing green light can denote that an aircraft is cleared for takeoff or landing. Always refer to local traffic laws for specific meanings.
Flashing red lights may be permanent or temporary (e.g. when the programmed sequence fails).A flashing red light means STOP, then proceed when safe.If it is a 4-way flashing red, cross traffic will also stop, and the intersection becomes identical to one with stop signs. This is a safety feature in some programmed signals. If only one direction has the flashing red (such as a road that intersects a busy highway), the traffic entering the highway must stop, and never has the right-of-way.* Some international traffic signals use a flashing red in place of steady red, to attract the attention of drivers where there is a profusion of commercial lights.
U.S. Navy uses Morse for visual communications with a flashing light as well as radio coded signals sent
A flashing yellow light in aviation terms is a runway guard light.
A flashing amber traffic light typically indicates that drivers should proceed with caution. It signals that they should slow down and be prepared to yield to other vehicles or pedestrians. This light often appears at intersections or pedestrian crossings where full stops are not required, but awareness of surrounding traffic is essential.