Your rights will be based on the property records . Are there easements for ingress and egress that are recorded? They may be on the individual deeds for one or both of the properties or an easement may be on a separate document for the subdivision unit the property is a part of.
Should there be no easement for using the drive/road you can put up no trespassing signs . The neighbor will then have to prove they have a right to use the drive/road. Be certain there really are NO use rights for your neighbor on any of the recorded records or community zoning regulations before you stop their use.
-Marion W. Cain Law Offices of Marion W. Cain, P.C., 127 Lewis Street, San Antonio, Texas 78212 (210) 226-2161 website: www.marioncainlaw.com email: firstname.lastname@example.org. This posting is provided for “information purposes” only and should not be relied upon as "legal advice". Nothing transmitted from this posting constitutes the establishment of an attorney-client relationship.