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Question

Difficulty: MediumSpeed Control and Following Distance

A driver is traveling at 35 mph on a multi-lane roadway and enters a designated school zone while yellow warning lights are actively flashing. The posted school zone speed limit is 20 mph when flashing. The driver notices no children are currently visible on the sidewalk or near the crosswalk. Under traffic safety regulations and speed control laws, which action is the driver required to take?

  1. A
    Maintain 35 mph until children are observed attempting to cross the street.
  2. Reduce speed immediately to 20 mph or lower for the entire length of the school zone.Answer
  3. C
    Maintain 35 mph as long as a minimum three-second following distance is kept behind preceding traffic.
  4. D
    Slow down only if weather or road conditions present immediate physical hazards.

Answer

Reduce speed immediately to 20 mph or lower for the entire length of the school zone.
When school zone warning lights are flashing, the lower posted speed limit is legally active and mandatory. Drivers must reduce their speed to the specified limit (20 mph in this scenario) upon entering the zone, regardless of whether pedestrians or children are visible at that exact moment.

Step-by-Step Solution

1
Identify active control signals
Recognize that active flashing yellow lights signal enforcement of the school zone speed limit.
School zone timing indicators communicate legally binding temporary speed reductions.
2
Determine required speed adjustment
Decelerate from 35 mph to at most 20 mph before entering the designated zone.
Drivers must comply with designated reduced speed limits as soon as the active zone begins, regardless of visible pedestrian presence.

Key Concept

School Zone Speed Compliance and Control
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Topics

Speed Control and Following Distance

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