What speed over the posted limit necessitates attending a high speed hearing?

The requirement to attend a high speed hearing in Pennsylvania is triggered when a driver exceeds the posted speed limit by a significant margin. Specifically, a speed of 31 mph or more above the posted limit is the threshold that necessitates such a hearing. This regulation is in place because driving at such high speeds poses a greater risk to public safety, meriting a more serious review of the driver's actions and potential consequences.

While other options present different speed thresholds, only exceeding the speed limit by 31 mph or more is explicitly linked to the need for a high speed hearing. This reflects an understanding of the increasing danger associated with higher rates of speed, as well as the legal framework established to address this concern through appropriate hearing procedures.