In the presented situation, do the white reflective road studs placed on the right side of the road inform you of the edge of the roadway?

Correct answer: NO

🔍 Situation analysis: You are driving at night. Notice that the road studs located on the right side of the carriageway are red in color.

📖 Explanation of the rule: Road studs act as a supplement to horizontal road markings, improving the visibility of the road's alignment at night. According to road standards, white road studs designate the left edge of the carriageway or traffic lanes, while red ones indicate the right edge of the carriageway. Since the studs on the right are red, the premise that white ones are marking the right edge is incorrect.

💡 Tip: Treat the color of the studs as a clear code. Red always reminds you that you are at the right edge (the boundary of the carriageway), and white helps you stay in the correct lane or marks the left edge. This helps you maintain the correct trajectory even when visibility is poor.