For a divided highway, where should reflective triangles be placed relative to the apparatus?

• A. 10 feet behind, 100 feet behind, and 200 feet behind
• B. 10 feet in front, 50 feet behind, and 100 feet behind
• C. 10 feet behind, 100 feet behind, and 200 feet in front
• D. 100 feet in front, 200 feet in front, and 300 feet behind

Answer: (A)

For a divided highway, the warning triangles should be placed behind the apparatus in a three-triangle pattern: 10 feet behind, 100 feet behind, and 200 feet behind. This arrangement provides an immediate alert to drivers close to the vehicle and two longer-range warnings down the roadway, giving approaching motorists in the same direction enough time to slow down and proceed with caution. Placing triangles in front or at other distances would not deliver the standard, gradual warning that road crews rely on for traffic flow on divided highways.