What is meant by a green arrow displayed with a red or green light at the intersection?

• Pedestrians are allowed to cross the intersection.
• Vehicles should come to a complete stop.
• Right turn is prohibited.
• Vehicles may turn in the direction of the arrow if the roadway is clear.
  Explanation:

  "If you are facing a green arrow displayed with a red or green light, you have the right of way and may turn through an intersection, as long as the intersection is clear."