Indiana Code Title 8. Utilities and Transportation § 8-15-3-16

Sec. 16. (a) Except as provided in subsection (b), the department may designate the locations and establish, limit, and control points of ingress and egress from each tollway as necessary or desirable to:

(b) The department may not grant ingress to or egress from any tollway, service area, or toll collection area having direct access to the tollway for the operation of transient lodging facilities, including the service areas on which are located service stations and restaurants and toll plazas and paved parts of the right-of-way.

(c) The department shall erect at all points of ingress and egress suitable signs facing traffic from each direction on the tollway.  These signs must designate the number and other designations, if any, of all United States or state highways of ingress or egress, the names of all Indiana municipalities having a population of at least five thousand (5,000) within a distance of seventy-five (75) miles on the roads of ingress or egress, and the distance in miles to those designated municipalities.