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Difficulty: Very hardSpeed Control and Following Distance

Under the Basic Speed Law, maintaining the maximum posted speed limit of 55 mph55\text{ mph} while navigating a blind curve on a rural two-lane roadway is legally compliant as long as no yellow advisory speed sign is posted and the vehicle remains entirely within its lane.

Answer: Answer

Answer

The statement is false. The Basic Speed Law requires drivers to adjust speed based on visibility and road geometry, regardless of posted maximum limits or the absence of advisory signs.
The correct answer is false. The Basic Speed Law explicitly requires drivers to reduce speed when vision is obstructed, such as on blind curves, to ensure the vehicle can be safely stopped within the visible distance ahead, regardless of whether a warning or advisory speed sign is posted.

Step-by-Step Solution

1
Analyze the legal distinction between posted speed limits and the Basic Speed Law.
Recognize that posted speed limits indicate maximum allowable speed under ideal conditions, whereas the Basic Speed Law requires driving at a speed that is reasonable and prudent for actual existing conditions.
Roadway geometry such as blind curves limits forward sight distance regardless of regulatory speed signs.
2
Evaluate stopping distance relative to sight distance on a blind curve.
Determine that maintaining 55 mph55\text{ mph} around a curve with obstructed visibility causes the vehicle's total stopping distance to exceed the visible clear distance ahead.
If an unexpected hazard exists beyond the line of sight, a driver traveling too fast will be unable to stop before colliding with it.
3
Determine the true/false value of the statement.
Confirm that the absence of a yellow advisory speed sign does not relieve a driver of the legal obligation under the Basic Speed Law to reduce speed for a blind curve.
Drivers must proactively control their speed to ensure they can stop within the clear distance visible ahead at all times.

Key Concept

Basic Speed Law and Sight Distance Control
Estimated Time:1m 0s
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Topics

Speed Control and Following Distance

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