What does the term 20-20-12 refer to in vehicle inspection?

The term 20-20-12 in vehicle inspection refers to the stopping distance and lane width for passenger vehicles, emphasizing standards that ensure safe operation on the road. Specifically, this term highlights critical measurements for drivers to maintain safe distances when stopping, as well as appropriate lane widths that facilitate safe travel and maneuvering for passenger cars.

In the context of vehicle inspections, ensuring vehicles meet these criteria is essential for road safety, as improper stopping distances or inadequate lane width can lead to accidents. The other options provided do not align with the specific meaning of 20-20-12; for example, tread depth pertains to tire maintenance rather than vehicle dimensions for safety, while speed limits and weight restrictions relate to regulations rather than direct vehicle inspection parameters.