The Corrected Subway Maps series shows what such common diagrams would look like when depicted accurately in terms of scale and dimension. This was achieved by overlaying the existing subway maps on top of Internet map-tile view of the cities New York, Boston and Washington. By doing so, they give a people information not only of train stop and routes, but also of distance and topography.
Created by Benjamin M. Schmidt, an assistant professor of history at Northeastern University in Boston and a core faculty member at the NuLab for Texts, Maps, and Networks, the Corrected Subway Maps series essentially represent the “tension between two different ways of representing the same urban spaces," as stated by the creator. He used QGIS, Leaflet, and some command-line GDAL tools.