What does this signal indicate?

• The red light is about to appear for the traffic in the left-turn lane, vehicles in that lane should not start left turn.
  Explanation:

  "After the left-turn green arrow, a yellow light appears for left-turning vehicles only. If they are in the intersection, they should complete their turn with caution"
• The green light is about to appear for the traffic in the left-turn lane, vehicles in that lane should prepare to start a left turn.
• The traffic on the lane other than the left-turn lane can make a left turn.
• The traffic on the left-turn lane can make a right turn.