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Legend (FunctionalClass)

National Highway System (0)
Mainline Mainline
Intermodal Connector Intermodal Connector
Functional Class (1)
RURAL RURAL
(01) Principal Arterial Interstate (01) Principal Arterial Interstate
(02) Principal Arterial Expressway (02) Principal Arterial Expressway
(04) Principal Arterial Other (04) Principal Arterial Other
(06) Minor Arterial (06) Minor Arterial
(07) Major Collector (07) Major Collector
(08) Minor Collector (08) Minor Collector
URBAN URBAN
(11) Principal Arterial Interstate (11) Principal Arterial Interstate
(12) Principal Arterial Expressway (12) Principal Arterial Expressway
(14) Principal Arterial Other (14) Principal Arterial Other
(16) Minor Arterial (16) Minor Arterial
(17) Major Collector (17) Major Collector
(18) Minor Collector (18) Minor Collector
Urban Areas (2)