Question

Difficulty: MediumSpeed Limits and Speed Regulation

A driver approaches a designated school zone on a weekday morning where a speed limit sign reads '20 mph20\text{ mph} When Flashing'. The yellow beacon lights on the sign are actively flashing, but the driver notices that no children are currently visible near the crosswalks or sidewalks. Which of the following describes the driver's legal obligation regarding speed?

  1. Reduce speed to 20 mph20\text{ mph} or lower while passing through the school zone because the flashing signals are active.Answer
  2. B
    Maintain the standard posted road speed limit of 35 mph35\text{ mph} because no children are physically present in the immediate area.
  3. C
    Drive at the regular posted speed limit until a pedestrian or child is observed attempting to step into the crosswalk.
  4. D
    Exceed the reduced speed limit by up to 10 mph10\text{ mph} provided hazard lights are activated to warn trailing traffic.

Answer

The driver must reduce speed to 20 mph20\text{ mph} or lower while traveling through the school zone because the flashing warning lights are active.
When school zone speed signs feature active flashing yellow lights, the reduced numerical limit is legally binding. Drivers are required to obey the reduced limit for the safety of pedestrians, even if no children are directly visible at that moment.

Step-by-Step Solution

1
Identify the regulatory condition set by the school zone sign.
The sign specifies a conditional speed limit of 20 mph20\text{ mph} triggered when flashing lights are activated.
Speed limits in school zones are legally enforced when active flashing beacons indicate school hours or student activity.
2
Evaluate the current road scenario against the regulatory condition.
The yellow beacon lights are actively flashing.
Active flashing lights make the 20 mph20\text{ mph} limit mandatory regardless of whether children are currently visible from the vehicle.

Key Concept

School zone speed regulation and active flashing signal compliance
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