That is correct but it is also the color. The shape of a sign is to warn people that are maybe colored blind and can't see the "red" stop sign. So they know it a stop sign because of the 8 sides on it. Hope it helps.
Advisory speed sign
Advisory speed sign.
A foreshadow is warning sign of a future event. A friend that does that warns you of the dangers ahead, may be from other friends or something he/she has seen.
The warning sign that tells you a divided highway is ending is yellow. It has a picture of two arrows, the one on the left is pointing down and the one on the right is pointing up.
That is correct but it is also the color. The shape of a sign is to warn people that are maybe colored blind and can't see the "red" stop sign. So they know it a stop sign because of the 8 sides on it. Hope it helps.
I believe it's a triangle
A yield sign.
Bump
The meaning of a traffic sign that says road construction ahead is that there are people up ahead working on a part of the road and to proceed with caution. The sign itself is triangular in shape, orange and has black lettering.
Well, yes, it warns you that the lanes are going to merge soon into one road. If it wasn't there, drivers may not understand that they must adjust their speeds to safely merge, rather than assume other traffic must wait for them.
i still must go
The Dip sign warns a driver that the road has a sudden drop in elevation