The National Transportation Library (NTL) hosts a full-text digital repository of significant transportation resources called ROSA P. The NTL collects and maintains electronic copies of research reports and statistical documents that have long-term usefulness and value to federal, state, and local transportation decision-makers, transportation analysts, and researchers.
Community-curated online directory that indexes and provides access to high quality, open access, peer-reviewed journals at no cost. Relevant subjects are Transportation and Communication (found under Law or Social Sciences) and Transportation Engineering (found under Technology).