The major contributing factor in Nebraska crashes resulting in death and/or serious injury is:

The major contributing factor in crashes resulting in death and/or serious injury in Nebraska is often linked to drivers being under the influence of alcohol or other drugs. This factor significantly impairs a driver's ability to operate a vehicle safely, leading to poor judgment, decreased reaction times, and an inability to assess or respond to road conditions effectively. Driving while impaired dramatically increases the risk of serious accidents because it affects cognitive functions and motor skills essential for safe driving.

While other factors like speeding, distracted driving, and challenging weather conditions can contribute to accidents, alcohol and drug impairment create a unique level of risk that drastically elevates the potential for fatal or severe outcomes. This makes understanding the impact of substance use on driving critical for any driver seeking to improve road safety and reduce their risk of being involved in a serious crash.