What is the number one primary collision factor for injury and fatal collision?

The number one primary collision factor for injury and fatal collisions is distracted driving. This includes activities such as texting, talking on the phone, or engaging with in-car technology, which divert attention from the road. Distracted driving significantly increases the likelihood of accidents by impairing a driver's ability to react promptly to hazards. As a result, it remains a leading cause of serious traffic incidents.