North American Transportation Atlas Data (NORTAD) Save
Published by the US Bureau of Transportation Statistics. Provides geospatial databases of airports, highways, railroads and political boundaries.
http://www.bts.gov/publications/north...   

Omnitrax Save
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.
http://www.omnitrax.com/   

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