§17-4-2. Definitions of roads comprising state road system.

The following meanings shall be ascribed to roads comprising the state road system:

 (a) "Expressway." -- Serves major intrastate and interstate travel, including federal interstate routes.

 (b) "Trunkline." -- Serves major city to city travel.

 (c) "Feeder." -- Serves community to community travel or collects and feeds traffic to the higher systems or both.

 (d) "State local service." -- Localized arterial and spur roads which provide land access and socioeconomic benefits to abutting properties.

 (e) "Park and forest." -- Serves travel within state parks, state forests and public hunting and fishing areas.