Which of the following is NOT one of the seven common roadway deficiencies?

• A. View/sight obstruction (on/off road)
• B. Roadway contour
• C. Reduced visibility (darkness, fog, precipitation, glare)
• D. Lighting conditions

Answer: (D)

Understanding roadway deficiencies helps explain where safety problems come from on the road. The first two items describe real issues with the road itself: a view or sight obstruction blocks what you can see ahead, and roadway contour refers to the road’s shape and grade that can limit your line of sight or handling. Reduced visibility covers environmental or situational factors like darkness, fog, precipitation, or glare that lower how far you can see. Lighting conditions, while important for safety, are about how the road is lit rather than a deficiency built into the roadway’s design or geometry. They affect visibility but aren’t a structural or systemic roadway deficiency category, so this option isn’t considered one of the seven.