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Difficulty: Very hardRegulatory Signs

A driver is traveling along a two-lane rural highway behind a slow-moving agricultural vehicle moving at 15 mph. The driver encounters a rectangular white regulatory sign displaying the message 'DO NOT PASS.' Approximately 80 feet ahead, the roadway approaches an uncontrolled rural intersection with full forward visibility and no oncoming traffic. Under standard traffic regulations, how must the driver proceed?

  1. Remain behind the agricultural vehicle and refrain from passing until passing is explicitly permitted and the intersection has been cleared.Answer
  2. B
    Overtake the agricultural vehicle immediately because driving significantly below the posted speed limit violates the basic speed law.
  3. C
    Initiate the pass quickly before reaching the intersection threshold since high forward visibility overrides static regulatory signs.
  4. D
    Execute a full emergency stop on the roadway and yield right-of-way until the agricultural vehicle exits the highway.

Answer

The driver must remain behind the agricultural vehicle without passing until reaching a zone where passing is legally permitted and the vehicle is clear of the intersection area.
The option directing the driver to remain behind the agricultural vehicle without passing is correct because white rectangular regulatory signs carry mandatory legal force. A 'DO NOT PASS' sign strictly prohibits overtaking. Furthermore, traffic safety laws prohibit passing another vehicle within 100 feet of an intersection.

Step-by-Step Solution

1
Identify the authority and meaning of the posted regulatory sign.
The white rectangular sign reading 'DO NOT PASS' establishes a mandatory prohibition against overtaking other vehicles.
Regulatory signs communicate enforceable laws that drivers must obey regardless of road visibility or low lead-vehicle speeds.
2
Evaluate statutory passing restrictions near intersections.
Passing is legally prohibited within 100 feet of any intersection under standard traffic safety codes.
Intersections present heightened risk for sudden turns and lateral conflicts, making overtaking unsafe even without explicit signage.
3
Synthesize the regulatory command and situational constraints to select the required action.
The driver must maintain position behind the slow-moving vehicle.
Both the regulatory sign command and statutory intersection rules strictly forbid executing an overtaking maneuver.

Key Concept

Regulatory Sign Enforcement and Intersection Overtaking Restrictions
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Topics

Regulatory Signs

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