Spatial Databases

Overview An introduction of spatial datasets Applications Selected applications of these spatial datasets by state and local agencies Full Documentation Documentation of specific databases including:general description,data dictionary, applications at state and MPO level Partial Documentation Documentation including: general description, how the data could be used.

An Introduction to Spatial Datasets

• What are spatial data?
• What are the most commonly used sources?
• How are these data sources used in transportation?
• What are some issues and problems?
• Other, complementary data sources?

Applications of Federal Spatial Databases at State and MPO level

National Transportation Atlas Databases 1997 (NTAD)

North American Transportation Atlas (NORTAD) CD-ROM

TIGER/Line Files

*U.S. Geological Survey Digital Line Graphs (DLGs)

Digital Elevation Models (DEMs)

Digital Orthophoto Quadrangles

Digital Raster Graphics

Digital Satellite Images

Land Use and Land Cover Digital Data

Geographic Names Information System (GNIS)

National Atlas of the United States