What does this sign indicate?

• The lane is reserved for vehicles with two or more people, including the driver.
  Explanation:

  "This is a High-Occupancy Vehicle (HOV) lane sign, which indicates that the lane is reserved for vehicles with two or more people, including the driver."
• The lane is open to all traffic regardless of the number of occupants.
• The lane is reserved for buses only.
• The lane is a toll lane and requires payment regardless of the number of occupants.