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Difficulty: MediumRegulatory Signs

A rectangular black-and-white regulatory sign stating 'SLOWER TRAFFIC KEEP RIGHT' is an advisory notice, allowing slower drivers to stay in the left lane as long as they do not exceed the posted speed limit.

Answer: Answer

Answer

False. Black-and-white rectangular signs are legally enforceable regulatory signs. The 'SLOWER TRAFFIC KEEP RIGHT' sign mandates that vehicles moving slower than the standard speed of surrounding traffic must occupy the right-hand lane.
The statement is false because rectangular white-and-black signs enforce mandatory regulatory rules rather than optional recommendations. Drivers traveling at speeds slower than the surrounding traffic flow must move to the right-hand lane.

Step-by-Step Solution

1
Identify the sign classification by shape and color
Black lettering on a white rectangular background designates a regulatory sign, which indicates legally mandatory traffic laws.
Understanding sign color and shape rules clarifies whether a sign is advisory (yellow/warning) or regulatory (white/black).
2
Evaluate the rule specified by the 'SLOWER TRAFFIC KEEP RIGHT' sign
The sign imposes a mandatory requirement for slower vehicles to yield the left lanes to faster traffic flow.
Regulatory signs enforce traffic laws designed to maintain smooth traffic flow and safety.

Key Concept

Mandatory nature of rectangular regulatory lane regulation signs
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Topics

Regulatory Signs

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