Unsigned highway

Highways are left unsigned for a variety of reasons, and examples are found throughout the world.

Depending on the policy of the agency that maintains the highway, and the reason for not signing the route, the route may instead be signed a different designation from its actual number, with small inventory markers for internal use, or with nothing at all.

Several highway maintenance agencies have multiple numbering systems for the different classes of routes they maintain (freeways, expressways, rural roads, etc.).

In such cases, one or more class of numbers may be reserved for minor routes and these may or may not be signed.

There are several instances where a route has officially been given a name by government agencies, and is signed with that name, but the route is also assigned a number by the highway maintenance agencies as to fit in their maintenance and inventory systems.

Reference routes are a class of highways in New York that are only identified by small inventory markers like this. This marker is designating New York State Route 940U .
Sign at the junction of U.S. Route 50 with Utah State Route 64 in Holden, Utah . SR 64 is a short connector between US 50 and Interstate 15 . This sign emphasizes the connection to the freeway, omitting the actual numbered designation of the road.
Road sign along Interstate 70 in Utah signaling traffic destined for the towns of Sigurd and Aurora to exit the freeway. The road at this exit is officially designated SR 259 , a short connector; however, the sign instead shows SR 24 , the highway at the other end of the connector.