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Comprehensive Plan Transportation Element Transportation to construct additional lanes for traffic. Under ISTEA, the Intermodal Surface Transportation Efficiency Act of 1991, and subsequent Federal Highway bills, funding for roadway improvements, whether widening or re -surfacing, is less dependent on jurisdictional responsibility than on functional classification. With ISTEA, federal Surface Transportation Program funds can be used on any federally classified road, except for local roads and rural collectors, regardless of jurisdictional responsibility. While Table 4.7.1 identifies the jurisdictional responsibility of each thoroughfare plan roadway within the county, Figure 4.2.1 graphically depicts the jurisdictional responsibility for each road on the major roadway network. As these indicate, the major inter -county roadways, including AIA, SR60, I-95, and US 1, are state roads. Similarly, roads such as Indian River Boulevard, CR 512, Roseland Road and others that extend through a municipality into the unincorporated area are generally county roads. I-95, SR 60 west of I-95, and the Florida Turnpike are Florida Intrastate Highway System (FIHS) roads. Functional Classification Functional classification is the process by which roads are grouped into different categories. Generally, roads are classified according to the degree of mobility and/or land access provided, with different roadway facilities providing different levels of mobility and accessibility. Generally, roads with a lower functional classification provide access to adjacent land uses, such as residential areas, employment centers, and commercial centers, with low levels of mobility. Roads with a higher functional classification are considered limited access facilities with high levels of mobility. For example, the Interstate Highway System is a sub classification of the highest functional class, principal arterials, and is characterized by long distance travel patterns and relatively high speeds. Since interstates are limited access facilities, provisions are not made for direct land use access from the Interstate system itself. Instead, interchanges with other highways are provided at discrete intervals, and land access is generally provided from those highways. According to Florida Administrative Code Section 9J -5.019(5b), comprehensive plans must depict the existing MOT roadway functional classification on the existing traffic circulation map or map series. For roadways in Indian River County, existing and future functional classifications are depicted in Figures 4.3.1 and 4.3.2 respectively. From a planning standpoint, functional classification is important for four reasons: 1. Functional classification groups together those facilities requiring the same level of technical, managerial and financial competence for design, construction, maintenance and operation; 2. It provides for the integrated and systematic planning as well as the orderly development of highway construction and improvement programs in accordance with actual needs; Community Development Department Indian River County 14