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Question

Difficulty: MediumAccident Procedures

Following a collision that leaves a commercial motor vehicle disabled on a straight, two-way undivided highway, how must the driver position the three emergency reflective triangles to protect the scene?

  1. A
    Place one triangle 10 feet behind the vehicle, one triangle 100 feet behind, and one triangle 200 feet behind in the lane of approaching traffic
  2. B
    Place all three triangles behind the vehicle at spaced intervals of 50 feet, 100 feet, and 150 feet along the roadway shoulder
  3. Place one triangle within 10 feet of the front or rear corners, one triangle 100 feet behind, and one triangle 100 feet ahead of the vehicleAnswer
  4. D
    Place one triangle 10 feet ahead of the cab, one triangle 200 feet ahead, and one triangle 200 feet behind the vehicle

Answer

Place one triangle within 10 feet of the front or rear corners, one triangle 100 feet behind, and one triangle 100 feet ahead of the vehicle
On a two-lane road carrying traffic in both directions or on an undivided highway, safety standards require warning devices to alert drivers approaching from both directions. The driver must place one warning triangle within 10 feet of the front or rear corners to mark the vehicle's location, one triangle 100 feet behind the vehicle, and one triangle 100 feet ahead of the vehicle on the shoulder or in the lane.

Step-by-Step Solution

1
Identify the roadway configuration at the collision scene
The roadway is a straight, two-way undivided highway carrying traffic in both directions.
Warning triangle deployment patterns depend directly on whether traffic travels in one direction (divided highway) or both directions (undivided road).
2
Apply federal CDL placement standards for two-way undivided roads
One warning device is placed within 10 feet of the front or rear corner to mark the vehicle, one device is placed 100 feet behind the vehicle, and one device is placed 100 feet ahead of the vehicle.
Both approaching and oncoming traffic must receive sufficient advance visual warning to avoid secondary collisions.

Key Concept

Emergency reflective triangle deployment rules on two-way undivided roadways
Estimated Time:1m 0s
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Topics

Accident Procedures

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