Metadata & Attribute Data Sources US Census Census Shapefiles TIGER block group block county county subdivision place puma state tract urban area zip Census Gazetteers TIGER county cbsa_combined cbsa_metro cbsa_metro_micro cbsa_new_england cbsa_new_england_div tract county subdivision place puma urban area zip Census American Community Survey (ACS) PUMS data FHWA FHWA Shapefiles FHWA GIS download form for MPOBoundary AltFuelCorridors NYSMPOS The shapes were taken from the FHWA Shapefiles. Map of MPOs TEA-21 Brochure Used to get the abbreviations etc State Abbreviations data/ directory structure