On one-way roads, which type of line is typically used to separate lanes?

• A. Yellow lines
• B. Green lines
• C. White lines
• D. No lines

Answer: (C)

Lane markings on one-way streets are white. Since all traffic moves in the same direction on these roads, white lines are used to divide lanes and guide drivers along the flow. Yellow lines, by contrast, are for separating traffic moving in opposite directions or marking no-passing zones on two-way roads, so they aren’t used to separate lanes on a one-way street. White lines also come in dashed and solid forms: dashed white lines mean you can change lanes when it’s safe, while solid white lines indicate you should stay in your lane. This color coding helps keep lane navigation clear and safe on one-way roads.