This site offers many links arranged by transportation mode and topics in addition to providing extensive links for transportation research.
Links to full-text documents in 16 different transportation categories.
A listing of transportation databases, article indexes and informational web sites.
Published and hosted by the National Transportation Library and compiled by members of the Special Libraries Association's Transportation Division. This site consists of comprehensive bibliographies encompassing a variety of formats across many different transportation fields.
Provides a listing to transportation resources by subject categories, a state-by-state listing arranged by various transportation topics and links to online full-text research reports.