As an interim measure, these lanes should be added to the map as separate roads, with the road type as Parking Lot Roads. This means that if you are not currently in one of these lanes the routing will avoid it, but if you choose to get into the lane, the routing will work correctly.
http://www.waze.com/wiki/index.php/Carp ... nsit_lanes
However, I've had two different CM's state (one in a thread, one via PM) that only the ramps onto the HOV lanes should be set as parking lot, and the HOV lanes should be set to the appropriate highway type. Scrolling around map, I see it being done both ways.
I don't care which is the correct way, I just want consistency between what the Wiki states and what is being done on the map. Do the CM's need to update their methodology, or do we need to update the wiki?