Call numbers and subject headings for road maps

Summary: This page provides examples of call numbers (both Library of Congress and AGS) for road maps, using MSU's in-house modifications, as well as example subject headings for road maps. It also details differences in call numbers and subject headings as applied to maps of cities, vs. maps of larger areas.

Example: a road map of Ohio by Rand McNally
- 090__ G4081.P2 1996 ǂb R3 Map
- 099__ 870 D-1996 Map
- 650_0 Roads ǂz Ohio ǂv Maps.
- 651_0 Ohio ǂv Maps.
- 655_7 Road maps. ǂ2 lcgft
Example: a highway map of Clinton County, Michigan, by the county road commission
- 090__ G4113.C8P2 1996 ǂb C3 Map
- 099__ 843-c D-1996 (Clinton Co.) Map
- 650_0 Roads ǂz Michigan ǂz Clinton County ǂv Maps.
- 651_0 Clinton County (Mich.) ǂv Maps.
- 655_7 Road maps. ǂ2 lcgft
Example: a street map of Lansing by American Automobile Association
- 090__ G4114.L3 1982 ǂb A4 Map
- 099__ 843-d A-1982 (Lansing) Map
- 651_0 Lansing (Mich.) ǂv Maps.
- 655_7 Road maps. ǂ2 lcgft

Road maps of cities

Note above the differences for cities compared to counties and larger entities:

the subject code “P2” is not used in the LC call number (for cities, this is reserved for specialized/unusual maps)
the subject code “D” is not used in the AGS number (for cities, this is reserved for specialized materials such as bus route maps or traffic surveys)
the LCSH “Roads” is not assigned
- (The above practices are based on the traditional assumption that depictions of streets and roads are generally inherent to maps of cities.)
For cities, we generally use LCGFT “Road maps” only for maps issued by AAA or a gas station, and/or for maps that specifically have “street map” or “road map” in the title. Otherwise use the LCGFT “Maps” (or a more specific heading as appropriate) instead.

Contact	Tim Kiser
Team	CMS
Updated	May 2018
Created	May 2018