_________ lane is intended to be used for passing slower vehicles, on multi-lane roads.

The leftmost lane on multi-lane roads is designated for passing slower vehicles. This lane is typically used for overtaking, allowing faster-moving traffic to maneuver around slower vehicles that are traveling in the right lanes. In many regions, including Wyoming, traffic laws encourage drivers to keep to the right unless they are actively passing another vehicle.

Using the leftmost lane for passing helps maintain smoother traffic flow and reduces the risk of accidents that can occur when slower vehicles obstruct faster traffic. It's important for drivers to return to their original lane after completing the pass to ensure they aren't unnecessarily blocking faster-moving vehicles. The other lanes, such as the rightmost and center lanes, are usually meant for general travel and slower-moving traffic. The service lane is a separate lane often used for access to businesses and is not intended for through traffic or passing.