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Difficulty: MediumEmergency Vehicles, School Buses, and Work Zones

When entering a marked highway construction work zone where temporary regulatory signs display a reduced speed limit, a driver observes that no construction workers or active equipment are currently present on the roadway. What speed limit is the driver legally required to observe while traveling through this designated area?

  1. The reduced work zone speed limit posted on the regulatory signs until passing the end of the construction zone.Answer
  2. B
    The standard normal highway speed limit, because work zone speed reductions apply exclusively when workers are actively present.
  3. C
    Any speed chosen by the driver, provided hazard flashers are activated to signal caution to trailing traffic.
  4. D
    The maximum posted highway speed limit minus 10 mph, regardless of the specific number displayed on the temporary work zone signs.

Answer

The driver must obey the reduced work zone speed limit posted on the regulatory signs until passing the end of the construction zone.
Official temporary regulatory signs posted in a designated construction work zone establish a legally binding speed limit. This posted limit remains enforceable continuously throughout the marked zone, even when no workers or equipment are actively operating, because underlying hazards such as lane shifts and narrow shoulders persist.

Step-by-Step Solution

1
Identify the nature of the traffic control device described in the scenario.
The temporary work zone signs are regulatory control devices establishing an enforceable speed limit.
Regulatory signs set legal speed boundaries that drivers must obey.
2
Evaluate the condition regarding worker presence versus posted regulatory requirements.
Statutory work zone speed limits take effect upon entering the marked zone defined by signs, not based on visual confirmation of personnel.
Work zones present ongoing hazards such as narrower lanes, shifted traffic patterns, and uneven pavement even when crews are off-site.
3
Determine the required driver behavior.
Maintain the posted work zone speed limit continuously until clear of the work zone.
Compliance ensures traffic safety and avoids statutory penalties for work zone speeding violations.

Key Concept

Work Zone Regulatory Speed Limit Enforcement
Estimated Time:1m 0s
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Topics

Emergency Vehicles, School Buses, and Work Zones

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