What does the speed shown on this advisory speed plaque tell a driver?
-
A.
The speed at which the hazard ahead can be comfortably negotiated. Correct
-
B.
The maximum legal speed limit that applies through the hazard.
-
C.
The minimum speed drivers must maintain through the curve.
-
D.
The speed limit that applies only in wet or icy conditions.
The answer is "The speed at which the hazard ahead can be comfortably negotiated."
An advisory speed plaque names the speed at which the hazard ahead can be comfortably negotiated, and it is a recommendation posted with a warning sign rather than a posted limit. The pull toward the legal-limit answer comes from carrying over the habit of reading any number on a roadside sign as enforceable; yellow warning signs advise, and the plaque takes its color and authority from the diamond above it.
The traps in the wrong answers
B. The maximum legal speed limit that applies through the hazard.
A regulatory speed limit rides on a white rectangular sign, not a yellow advisory plaque under a warning. This answer treats the yellow plaque as an enforceable posted limit because a number appears on a roadside sign.
C. The minimum speed drivers must maintain through the curve.
A minimum speed sign is regulatory and sets a floor for lawful travel, which is not what this plaque does. This answer confuses the advisory number with a floor drivers may not drop below on the curve ahead.
D. The speed limit that applies only in wet or icy conditions.
The advisory speed applies to the hazard shown on the sign above, not only when the pavement is slick. This answer assumes the number kicks in only when weather turns the road slick.
This question tests your knowledge of Warning Signs on the roads of every US state . Source: Manual on Uniform Traffic Control Devices, sign W13-1aP (Advisory Speed Plaque)..
Related questions
- What does this Added Lane sign tell a driver about the road ahead? →
- You see this sign as one of a series posted along the outside of a curve. What does the series tell a driver? →
- You see this yellow diamond sign on approach. What should you be prepared to do at the intersection ahead? →
- What does this Cross Road sign warn a driver about the road ahead? →
- What should a driver understand from this Curve Right sign? →