What is the purpose of a shared-lane marking?

• To designate a lane for bicycles only
• To indicate a turn lane for both cars and bicycles
• To remind drivers to share the lane with bicycles and show cyclists where to position themselves
  Explanation:

  "Purposes of shared lane marking: 1. Guides cyclists on proper lane positioning, especially near parked cars or narrow lanes. 2. Alerts drivers to expect cyclists and share the road. 3. Encourages safe passing by showing cyclists' expected position. 4. Helps prevent dooring incidents by promoting safe lane use."
• To designate a parking lane for bicycles