It's an HOV - High Occupancy Vehicle - lane. Provided the lanes are open, they're available for use by any vehicle with two or more passengers.
No. Emergency vehicles use whichever lane they need to - you simply need to stay out of their way.
You have to pull in front of it.....repededly
shoulder
On a freeway/highway, the lane which contains the diamond like shape is a separate travel lane. Specifically this lane is dedicated to the "ride share" and/or individuals carpooling.
The question is a true statement.
If there are 3 lanes on your side of the freeway, the right-hand lane is there for vehicles to merge onto the freeway and it is the place for slower moving vehicles to drive; such as big rigs or cars towing anything. The lane in the middle is the passing lane for slow moving traffic, and it is the lane for primary travel of other than slow moving vehicles. The lane to the far left is for passing only, except when designated for specific use, like a carpool lane.
A diamond lane on the freeway means it is a special lane on a highway or street that is reserved for a specific type of traffic (such as cars carrying more than one passenger). These lanes are also meant for the drivers who are not exiting any time soon.
HOV lane (High Occupancy Vehicle) 2+ passengers must be in the vehicle while driving in said lanes.
The left most lane
lane ends ahead Emergency vehicles only
If you are referring to a freeway division (as in on the road), the answer is "lane." (:
High Occupancy Vehicle (HOV) / carpooling lane - allowing only vehicles with 2 or more people inside .