What is the number one cause of motor vehicle collisions?

The number one cause of motor vehicle collisions is distracted driving, which includes activities such as texting, talking on the phone, or interacting with in-car entertainment systems. These distractions significantly impair a driver's attention to the road, increasing the likelihood of accidents. Other factors contributing to collisions include speeding, driving under the influence of alcohol or drugs, and adverse weather conditions. However, distracted driving remains the leading cause overall.