What do these markings on the road indicate?

• They mark lanes where traffic flows in one direction during certain hours and in the opposite direction during others.
  Explanation:

  "These markings indicate reversible lanes, where traffic flow direction changes depending on the time of day or traffic demand. These lanes help manage congestion by allowing traffic to flow in the most efficient direction during peak hours."
• They indicate lanes reserved for high-occupancy vehicles only.
• They signal that the lane is closed to all traffic.
• They designate lanes for bicycles and pedestrians.