Image:NYC subway simplified map.png

This image, asserted by the uploader to be drawn by the uploader, or modified from a map drawn by another uploader, and asserted not to be a copied image, is a map of all or part of the New York City subway system. The Metropolitan Transportation Authority (the "MTA") publishes several such maps, including two such current maps http://mta.info/nyct/maps/submap.htm and http://mta.info/nyct/maps/subwaymap.pdf, and possibly others. Their site, http://mta.info/ asserts copyright over all materials on the site, including the two referenced maps. Further, one user asserted "The design of the New York City subway system and all of its components, including maps of it and the line symbols used on those maps, are copyrighted by the MTA and its ancestors."

Questions have arisen about the copyright status of this or related maps, and in fact some of these maps have been deleted. See Commons:Undeletion_requests/Current requests#Image:NYC subway simplified map 50pct-optimized.png for discussion of this matter (diff link). Some of what follows is adapted from that discussion.

Some maps certainly are copyrighted, and some maps such as the two given above certainly are copyrighted by the MTA. Nonetheless, this map, is not copyright by the MTA under the following analysis.

• Any map that is a representation of features of the earth, drawn from knowledge of those features, and not directly a copy of another map, is not a copyright violation of any other particular map merely because it represents the same features. (for if it was it would be impossible to produce any map whatever that was free of hindrance).
• Therefore, it is possible to draw a map of the New York Subway system lines free of hindrance, which are after all features of the earth.
• Maps have markings. A map without markings is not as useful as one with. The letters and numbers used to designate the lines are a kind of knowledge of the features of the earth, just as the name of a town, or the reporting marks of a railway line, or a highway number are a kind of knowledge of the features of the earth (even if the railway reporting marks are a trademark of the railway company, they are nevertheless used on maps as identification). The markings of a map are not themselves copyrightable, only the arrangements of the markings (or the choice to include or not include specific markings) that make a particular version that version. So it is possible to correctly label such a subway map with the correct line designations, as long as in so doing one does not substantially duplicate the marking arrangement (as well as the precise choice of which markings to include or not include) on copyrighted maps.
• So then it is not impossible to create an accurate map of the subway system that is free. What remains is to determine if this map, which is substantially different in appearance than both of the maps that have been cited as evidence of copyright violation, nevertheless violates copyrights of the MTA or predecessors.
• We have ruled out the presence of features, and the markings of those features. What remains is color or symbology.
  • Color? Color choice is trade dress, not copyright. Color cannot itself be copyrighted.
  • The use of shapes for various line designation symbols? The shapes are squares and circles, not distinctive symbols that could be trademarked. They are very simple geometry, and thus not copyrightable. Only if a particular arrangement of the shapes mimics a copyrighted work, and it is an arrangment that is not logically obvious and necessary, is that arrangement an infringement.

Therefore these maps, (and this map in particular) since they are representations of features of the earth, using markings to denote the features by their commonly known names, and not using distinctive symbols, and not matching specific maps already copyrighted by the MTA are not copyright infringing of the MTA's works, despite the MTA's assertion otherwise. If a MTA copyright map is located that is an exact or substantially similar duplicate of this map, with features that are copyrightable, this map should be again proposed for deletion, citing that map.