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Difficulty: MediumGuide and Informational Signs

While driving on a multi-lane interstate highway, you approach an overhead green guide sign that features a smaller exit number panel mounted on its top-left corner. What does the top-left placement of this exit panel indicate to the driver?

  1. The exit ramp is located on the left side of the highway.Answer
  2. B
    The exit is designated exclusively for emergency and law enforcement vehicles.
  3. C
    The exit lane drops abruptly and requires drivers to yield to incoming ramp traffic.
  4. D
    The exit is located exactly 42 miles ahead on the right shoulder.

Answer

The top-left placement of an exit number panel on a guide sign indicates that the upcoming highway exit ramp is located on the left side of the freeway.
According to standard highway guide sign conventions, the physical placement of an exit tab on top of an overhead guide sign corresponds directly to the side of the highway where the exit ramp leaves the main roadway. A tab mounted on the top-left corner indicates a left-hand exit ramp.

Step-by-Step Solution

1
Identify the type of traffic sign in the scenario.
The sign described is a highway guide sign with an auxiliary top-mounted exit number panel.
Guide signs assist drivers with route selection and exit positioning.
2
Analyze the positioning convention for exit number panels (tabs).
Under standard traffic control standards (MUTCD), an exit number panel aligned with the left edge of the main sign indicates a left-side exit ramp, while a right-aligned tab indicates a conventional right-side exit ramp.
This visual alignment gives drivers advance notice to change lanes safely into the left lane prior to reaching the interchange.

Key Concept

Interstate Exit Panel Positioning Conventions
Estimated Time:1m 0s
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Topics

Guide and Informational Signs

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