What is the minimum distance reflectors must be visible at night when directly in front of lawful lower beams of headlamps?

The minimum distance at which reflectors must be visible when illuminated by lawful lower beams of headlamps is indeed 600 feet. This requirement is established to ensure that drivers have adequate visibility of signs, objects, and other vehicles at night, enhancing safety on the road. The specification for 600 feet is based on providing sufficient time for a driver to react to potential hazards or changes in the roadway, thus reducing the risk of accidents.

This distance allows drivers to see reflectors clearly and gauge their proximity to them, contributing to better decision-making while driving at night. Understanding this regulation emphasizes the importance of proper vehicle lighting and visibility when navigating at night. Other distances, while they may be established for different lighting conditions or scenarios, do not meet the minimum standard specified for lawful lower beam headlamps.