What is the minimum distance ahead of a work zone that warning signs, advance warning vehicles, or variable message boards may be placed?
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A.
200 feet Correct
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B.
50 feet
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C.
500 feet
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D.
1,000 feet
The answer is "200 feet"
The Pennsylvania Driver Manual sets 200 feet as the minimum advance distance at which warning signs, advance warning vehicles, or variable message boards may be placed approaching a work zone. Behind C is the 500-foot visibility figure from the parking rule for a vehicle stopped on the roadway earlier in the same chapter, misapplied to a signing rule where it does not belong.
The traps in the wrong answers
B. 50 feet
Fifty feet is far short of the 200-foot minimum the manual states for work-zone advance warning. This answer borrows the 50-foot no-stopping buffer measured from the nearest rail at a railroad crossing and applies it to work-zone signing.
C. 500 feet
The manual sets the work-zone advance-warning minimum at 200 feet, not 500. This answer pulls the 500-foot visibility figure from the parking rule for a vehicle stopped on the roadway earlier in the same chapter.
D. 1,000 feet
The manual sets the work-zone advance-warning minimum at 200 feet, not 1,000. This answer borrows a 1,000-foot visibility or headlight-use figure from another rule and drops it into a work-zone signing rule.
This question tests your knowledge of Construction Signs in Pennsylvania. Source: Pennsylvania Driver Manual, "Work Zones," p.54..
Related Pennsylvania questions
- What does a FLAGGER AHEAD work zone sign tell you? →
- In a work zone, what does a flagger use to signal drivers to stop or slow down? →
- You approach a flagger in a work zone whose signal conflicts with a nearby traffic sign. Whose direction must you follow? →
- You are pulled over for a traffic violation in a work zone, and your vehicle's headlights are not turned on. What extra penalty does the manual say applies? →
- The manual says fines are doubled in active work zones for certain violations. Which violation does it specifically name? →
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