Which factor may contribute to traffic collisions?

The factor that significantly contributes to traffic collisions is preoccupation. When a driver is preoccupied, their attention is divided, which can lead to slower reaction times and an inability to fully focus on the task of driving. This distraction might stem from various sources, such as personal issues, conversations with passengers, or even the use of mobile devices. When a driver is not fully engaged in the driving process, critical cues and changes in the environment may be missed, increasing the likelihood of a collision.

While other factors like overconfidence in driving skills, low visibility, and road construction can also contribute to accidents, preoccupation often directly leads to behaviors such as distraction and inattention, which are primary causes of many traffic incidents.