I think it means you can't turn right
The red light is the sign to come to a complete stop. That's what a red light means. Come to a complete stop!!
Generally, a red light means "stop," but in many cities, it is permitted to make a right turn on red, with caution, if it is safe to do so (no other cars are coming). But as you have noticed, there are exceptions. If you see a sign that says "no right turn on red," that means that specific red light requires a full stop, and you may not make a right turn until the light changes to green. In other words, if you do not see any signs, you generally are allowed to make a right turn on red. If you do see a sign, you are not allowed to make a right turn on red.
Yes. If there is no sign telling you 'No Turn on Red' , you can turn right on red (after coming to a complete stop and yielding the right of way to other traffic).
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The color red generally tells you "stop" or "don't." For example, stop signs are red, and a red circle and slash means that the thing pictured on the sign is prohibited. Red is universally regarded as a "warning" colour - DANGER!
You must still come to a complete stop. Even if there is a flashing red light you must stop.
Slow down and be prepared to stop if necessary.
a red traffic light means stop and a red blinking flashing light means its a stop sign
You come to a complete stop at the limit line or before entering the crosswalk/intersection of that specific red stop sign.
In the US, unless there is a sign or signal prohibiting it, you can turn right on a red light. A "right on red" turn may be executed only after a complete stop and then when the way is clear.
This would be talking about the Right Turn on Red. In the US the right turn on red is legal at all traffic lights, except where it is specified with a "No Turn on Red" sign (white background black lettering). You can legally turn right after you came to a complete stop at the traffic light, the traffic from the left has the right of way. There are times when you don't need to come to a complete stop when making the right turn on red. Some intersections have a lane median that separates the straight lanes from the right lanes (I don't know the technical term for it). These sometimes will have yield signs at the end, saying you have to yield to the traffic from the left. Really depends on the intersection whether you have to make a complete stop, if you only have to yield, or if you don't have to stop. Many so think at a regular 4-way intersection that the right turn on red is a yield, it's not, it's a stop, you must make your complete stop at the red light before proceeding to make the right turn on red, or if you can make it at all (No Turn on Red sign).
Not stop sign in the inside circle , not red in the small circle