Functional Classification refers to the character of services that a particular roadway is intended to provide. In general, roads either serve to provide mobility for vehicles or access to locations. The process of functional classification was mandated by Intermodal Surface Transportation Efficiency Act of 1991(ISTEA) and implemented in 1993 by the Office of Transportation Planning in cooperation with the 13Regional Planning Agencies. Roadways are divided into the following three classification categories: Arterials: These roadways provide the highest level of mobility at the greatest vehicular speed for the longest uninterrupted distances and are not intended to provide access to specific locations. Arterials are further subdivided into Principal Arterials and Minor Arterials. However, for the purposes of this report they have been grouped together. Please note that Interstates are considered Arterials, but they have been given their own category in this report. Collectors: These roadways provide some level of both mobility and access. They collect traffic from Local roads and funnel it to Arterials. In rural areas, collectors are further subdivided into Major Collectors and Minor Collectors, but for the purposes of this report they have been grouped together. Locals: These roadways provide access to abutting land with little or no emphasis on mobility. The term Local road should not be confused with local jurisdiction. Most, but not all, functionally classified Local roads are under city/town jurisdiction.