What does the basic speed law imply about speed under ideal conditions?

• A. The speed limit is the maximum allowed under ideal conditions; adjust for weather, visibility, and traffic.
• B. You should always drive at the posted speed limit no matter what.
• C. You can drive faster if you are careful.
• D. The speed limit is a minimum safe speed in all conditions.

Answer: (A)

Under ideal conditions, the posted speed limit is the maximum you may drive legally. The basic speed law goes beyond that by requiring you to choose a speed that is safe for the current conditions. So you can travel up to the limit when everything is clear, but you must slow down if weather, visibility, or traffic make the higher speed unsafe. The other ideas aren’t correct because the limit isn’t a universal mandate to drive exactly at that speed, speeding up isn’t allowed just because you’re careful, and the limit is not a minimum safe speed.