SDCL § 31-7-1: Definition of terms.

Terms used in this chapter mean:

(1) "National system of interstate highways," includes all highways that have been or may become eligible for development with funds provided by federal highway acts for use on the interstate system;

(2) "Control areas," a control area is a metropolitan area, first or second class municipality, or industrial center, defense installation, a topographic feature such as a mountain pass, a favorable river crossing, a hub road which would result in material traffic increment on the interstate route, a section of completed expressway, or a place on the common boundary of two states agreed to by the states concerned;

(3) "Intermediate control points," an intermediate control point is either end of an acceptable section on final location of an interstate route;

(4) "Department," the Department of Transportation.