What term describes a lane used for vehicles to exit and enter an expressway?

The term that accurately describes a lane used for vehicles to exit and enter an expressway is commonly known as an exit lane. This lane is specifically designed to allow vehicles to transition safely off the expressway or onto it without significantly disrupting the flow of traffic. The purpose of an exit lane is to provide a designated space for vehicles to slow down as they prepare to leave the expressway, ensuring that the process of entering or exiting the highway is as smooth and safe as possible.

While a merge lane is associated with vehicles coming onto an expressway and merging with existing traffic, it does not serve the same function as an exit lane, which is focused on allowing vehicles to leave the expressway. Similarly, a weave lane refers to a section of roadway that combines both exiting and entering traffic, which can lead to complex driving conditions, and is different from the specific functionality of an exit lane. The term "transfer lane" is not a commonly recognized term in this context, which can create confusion regarding its relevance to exiting or entering expressways.