This is an Easement for a Driveway.
The easement is a real property interest, but separate from the legal title of the owner of the underlying land. In the case of a driveway easement, it allows the person who is the beneficiary of the easement to cross the "servient" property. The land which receives the benefit of the easement is called the "dominant" property or estate. As an example, a driveway easement may be created by recording a deed that states that one neighbor owns the driveway to the halfway point, but has an easement or right of way to use the remainder; however, the adjoining home owns the other half of the driveway, with a right-of-way with respect to the portion the neighbor owns.