Question 7670
Which of the three risk factors is a primary cause to a lesser degree than the other two factors?
- The vehicle factor.
- The road and its environment factor.
- The human factor.
Show answer and explanation
Correct answer: The vehicle factor.
The vehicle factor. Studies identify the human factor as the primary cause of 70% to 90% of crashes, the road and its surroundings as the primary cause of 10% to 35%, and the vehicle as the primary cause of 4% to 13%. Also, many vehicle failures result from poor maintenance.