What is a major direct cause of highway accidents?

Speed is recognized as a major direct cause of highway accidents because it reduces a driver's ability to steer safely around curves or objects in the roadway, extends the distance necessary to stop a vehicle, and increases the severity of crashes when they do occur. Driving at higher speeds limits the time available to react to sudden changes in traffic or roadway conditions, making it more difficult to avoid potential collisions. Additionally, the force of impact in a crash rises dramatically with speed, leading to more severe consequences for all parties involved.

While distracted driving, poor weather conditions, and fatigue also contribute to highway accidents, speed remains a primary factor that directly influences the likelihood and severity of an accident. Recognizing and adhering to speed limits is crucial for ensuring safety on the road.