By "fast lane", I believe icey is refering to lane 5, not HOV. He is saying lane 4 is better than lane 5 because of all the people switching between land five

By "fast lane", I believe icey is refering to lane 5, not HOV. He is saying lane 4 is better than lane 5 because of all the people switching between land five and HOV. He's not saying that lane 5 is better than HOV.