A segment of Trunk Highway 100 (T.H. 100 commonly called "Belt Line") has served since the 1930's as a circumferential and urban distributor route on the western side of the Twin Cities metropolitan area. A segment of the proposed Interstate Freeway system, to be opened around the year 1965, will provide a new "super" Belt Line located west of the present one. This is a comparative study of the present and proposed Belt Line routes.
