You see this yellow diamond sign on approach. What should you be prepared to do at the intersection ahead?
-
A.
Slow down and yield to vehicles already in the circle Correct
-
B.
Come to a full stop before entering the circle
-
C.
Enter first because circle traffic must yield to you
-
D.
Continue at speed since the sign only marks the exit
The answer is "Slow down and yield to vehicles already in the circle"
The yellow diamond warns of a roundabout ahead, so slow on approach and be ready to obey the entry yield control that gives priority to vehicles already circulating counterclockwise. Drivers carrying the four-way-stop habit into every intersection pick the full-stop answer, reading any yellow warning as a signed halt when the diamond only announces what is coming.
The traps in the wrong answers
B. Come to a full stop before entering the circle
A roundabout entry is governed by a yield control, and a full stop is required only when no gap is available in the circulating flow. Treats the yellow warning diamond as if it carried the force of the red octagon that would command a halt at the entry.
C. Enter first because circle traffic must yield to you
Traffic already circulating has priority, and drivers entering the circle are the ones who must yield. Applies a first-arrival habit from uncontrolled intersections rather than the counterclockwise-flow priority the roundabout gives to drivers already inside it.
D. Continue at speed since the sign only marks the exit
The diamond warns of a roundabout ahead, so slow on approach and be ready to yield at the entry, not hold speed through the intersection. Confuses a yellow warning diamond with a route or guide panel that would only label the intersection ahead rather than signal a change in road condition to prepare for.
This question tests your knowledge of Warning Signs on the roads of every US state . Source: Manual on Uniform Traffic Control Devices, sign W2-6 (Circular Intersection (Roundabout))..
Related questions
- What does this Added Lane sign tell a driver about the road ahead? →
- What does the speed shown on this advisory speed plaque tell a driver? →
- You see this sign as one of a series posted along the outside of a curve. What does the series tell a driver? →
- What does this Cross Road sign warn a driver about the road ahead? →
- What should a driver understand from this Curve Right sign? →