Final answer:
Stop completely when you see someone with a guide dog or white cane in the roadway, ensuring their safety by waiting until they have entirely cleared the street.
Step-by-step explanation:
When you see anyone in the roadway with a dog guide or a white cane, the general rule for drivers is to come to a complete stop to ensure the safety of the person crossing or navigating the street. This is not only a courtesy but often a legal requirement to protect the rights and safety of individuals with visual impairments. It is crucial to keep a safe distance, stopping at least until the person has fully and safely cleared the roadway. This rule is analogous to stopping for a pedestrian in a crosswalk and demonstrates respect for the special needs of those who rely on a guide dog or white cane for mobility.