For an undivided highway, what is the placement sequence of reflective triangles?

For an undivided highway, what is the placement sequence of reflective triangles?

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

Answer: (A)

The idea is to create warning coverage for traffic in both directions when you’re stopped on an undivided highway. Place the first triangle about 10 feet behind your vehicle so the closest approaching drivers notice you right away. Put the second triangle roughly 100 feet behind to extend the warning for following traffic. Finally, place a triangle about 100 feet in front of your vehicle to alert drivers coming from the opposite direction in time to react. This arrangement ensures drivers approaching from either direction have a clear cue to slow down or stop, reducing the risk of a secondary crash. Other sequences either don’t provide warning in both directions or place markers at distances that don’t give enough reaction time.

The idea is to create warning coverage for traffic in both directions when you’re stopped on an undivided highway. Place the first triangle about 10 feet behind your vehicle so the closest approaching drivers notice you right away. Put the second triangle roughly 100 feet behind to extend the warning for following traffic. Finally, place a triangle about 100 feet in front of your vehicle to alert drivers coming from the opposite direction in time to react. This arrangement ensures drivers approaching from either direction have a clear cue to slow down or stop, reducing the risk of a secondary crash. Other sequences either don’t provide warning in both directions or place markers at distances that don’t give enough reaction time.