Version 2011 of the Fixed-Guideway Transit Network is a network database of the nation's fixed-guideway transit systems. The data set covers systems in cities defined as FTA's universe of cities and includes heavy rail, light rail, monorail, cable car, inclined plane, and automated guideway.The data provide users with information about the location and type of fixed-guideway transit and terminal facilities primarily for regional cartographic, spatial and network analysis purposes.Developed by the University of Tennessee Center for Transportation Research GIS Group. This map service displays data from the 2011 National Transportation Atlas Databases (NTAD). NTAD is a collection of geospatial datasets from various government agencies and administrations within the Department of Transportation. NTAD is compiled and released by the Department of Transportation, Research and Innovative Technology Administration, Bureau of Transportation Statistics.