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NPS Road Classes

For purposes of functional classification, the routes which make up a park road system are grouped based on use into three categories: Public Use Park Roads, Administrative Park Roads, and Urban Parkways and City Streets. Note that federal or state roads may exist within National Park System lands. This section only refers to the roads that are maintained by the NPS.

The assignment of a functional classification to a park road is not based on traffic volumes or design speed, but on the intended use or function of that particular road or route.

NPS Class	Name	Description	Suggested Waze Road Treatment
I (one)	Principal Park Road, Rural Parkway	Roads which constitute the main access route, circulatory tour, or thoroughfare for park visitors.	Primary Street, Street
II (two)	Connector Park Road	Roads which provide access within a park to areas of scenic, scientific, recreational or cultural interest, such as overlooks, campgrounds, etc.	Street
III (three)	Special Purpose Park Road	Roads which provide circulation within public use areas, such as campgrounds, picnic areas, visitor center complexes, concessioneer facilities, etc. These roads generally serve low·speed traffic and are often designed for one-way circulation.	Street
IV (four)	Primitive Park Road	Roads which provide circulation through remote areas and access to primitive campgrounds and undeveloped areas. These roads frequently have no minimum design standards and their use may be limited to specially equipped vehicles.	Off road / not maintained
V (five)	Administrative Access Road	All public roads intended for access to administrative developments or structures such as park offices, employee quarters, or utility areas.	Private Road
VI (six)	Restricted Roads	All roads normally closed to the public, including patrol roads, truck trails, and other similar roads.	Private Road

The following diagram provides examples of where these road classes might be located in a typical National Park setting.