R.I. Gen. Laws § 24-10.1-10: Advertising in safety rest areas.

In order to provide information in the specific interest of the traveling public, the director of transportation is hereby authorized to maintain maps and to permit informational directories and advertising pamphlets to be made available at safety rest areas, and to establish information centers at safety rest areas for the purpose of informing the public of places of interest within the state and providing such other information as may be considered desirable.