Final answer:
Red reflectors on the lane lines facing you indicate a stop sign ahead.
Step-by-step explanation:
If you see red reflectors on the lane lines facing you while driving, it means that you are approaching a stop sign ahead. These reflectors are typically used in conjunction with the stop sign to provide additional visibility for drivers. When you see red reflectors, it is important to come to a complete stop at the stop sign and proceed with caution.