Transportation (Subscribe)
Links
North American Transportation Atlas Data (NORTAD)
http://www.bts.gov/publications/north_american_transportation_atlas_data/
Published by the US Bureau of Transportation Statistics. Provides geospatial databases of airports, highways, railroads and political boundaries.
Omnitrax
Information on the largest, privately held, rail services company in North America. Offers employment opportunities and contacts, a corporate overview and details of services to clients in industrial and transportation sectors.