Not a rule that only matters when a driver is going over the posted limit, and not a free pass to drive at the speed sign no matter what is happening around you. A basic speed law requires every driver to travel at a speed that is reasonable and prudent for the actual conditions on the road, even when that speed is below the posted maximum. Rain, fog, heavy traffic, snow, ice, poor visibility, curves, animals near the roadway, or stopped traffic ahead can all make a lawful posted speed unsafe.

That matters fast after a crash because a driver can be cited or found negligent without ever exceeding the speed limit. In New Hampshire, RSA 265:60 requires drivers to operate at a careful and prudent speed considering traffic, road surface, width, and hazards. On mountain passes during a nor'easter, or at dusk in Coos County where moose strikes are a known risk, the question is not just "How fast were you going?" but "Was that speed safe right then?"

For an injury claim, a basic speed law violation can support an argument that a driver breached their duty of care. That can affect fault, insurance negotiations, and a personal injury case. If a ticket was issued, or if the crash report points to unsafe speed for conditions, act quickly before evidence disappears and memories fade. Road conditions, skid marks, dashcam footage, and witness accounts can make the difference.