Practice question

What are the standard advance warning sign placement distances (A, B, and C) specified by Caltrans for freeway lane closures?

  1. 100 feet, 250 feet, and 500 feet upstream of the merging taper for local street closures.
  2. 250 feet, 500 feet, and 1,000 feet upstream of the merging taper.
  3. 500 feet, 1,000 feet, and 1,500 feet upstream of the merging taper.
  4. 1,000 feet, 1,500 feet, and 2,640 feet (1/2 mile) upstream of the taper.

Answer: D — 1,000 feet, 1,500 feet, and 2,640 feet (1/2 mile) upstream of the taper.

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: C-31 Traffic Control Practice Questions - California CSLB C-31 Construction Zone Traffic Control Examination Exam →