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  • About
    • About Us
    • News and Updates
    • Our Primary Resources in Action
    • Policies
  • Knowledge Hub
  • LA Transportation History
    • Past Visions: 1920s
    • Past Visions: 1930s
    • Past Visions: 1940s
    • Historic Traffic Plans: 1911-1957
    • Archive
      • Online Archive of California
      • Search Digitized Material
        • Search California Highways and Public Works Magazine: 1924-1967
        • Search CEO Briefs & Every Voice Counts 2005-present
        • Search Electric Railway Journal 1884-1931
        • Search Employee News Magazines: 1918-2009
        • Search Metro Library’s Digitized Documents
        • Search Metro’s Board Records 1993-2015 and its Predecessors Meeting Minutes 1951-1993
        • Search Metro Board Correspondence/Board Box 1993-present
        • Search Los Angeles Metro Press Releases 1993 – Present
  • Resources to Know
    • Start Here: An Approach to Transportation Research
    • Transportation Data and Related Resources
    • Databases and eBooks
    • Environmental Studies
    • Timeline of Los Angeles Transit
    • Search the Library Catalog
Resources and research support

Start Here: An Approach to Transportation Research

Transportation is a multidisciplinary field, so knowing exactly where to begin your research journey can be quite a challenge.

Luckily, there is an independent network of librarians, archivists, and other information professionals working throughout the field to gather, describe, and share everything from recent reports and data to historic images and maps. The Metro Transportation Research Library and Archive is happy to help our patrons with their research through continually adding to the thousands of online resources we host, providing direct reference services when needed, and through self-guided tutorials like this one.

Below, you’ll find some initial physical and digital resources that you can utilize for research on most transportation topics. Aren’t finding what your looking for? Reach out to library@metro.net for support or fill out the form at the bottom of this guide.

Books, reports, studies, dissertations, and journal titles

Journal articles, conference proceedings, serials, and more

Transportation studies, theses, dissertations, academic research

Guidelines, policies, standards, conference presentations

Books, reports, studies, dissertations, and journal titles

Available through our Library

  • Search approximately 50,000 items in the Metro Research Library & Archive online catalog
  • Take note of any additional keyword vocabulary contained in the cataloging records. Approximately 20% of the records contain links to on-line full text publications.
  • After locating books, reports, studies, dissertations and journals, look for bibliographies or sources used in those items for additional research material.
  • A significant portion of the research collection is contained on microfiche. These reports can be distinguished by Call Numbers beginning with the letters “PB.”

Depending on the subject, a search of Metro’s Board of Directors website and its archive of pre-2015 materials, including Board meeting minutes from the predecessor agencies back to 1951 (approximately 25,000 items) and internally, Metro Board-approved Policies (90+ major policies) may also yield important information on public policy decisions and their background.

 

Available at other transportation libraries

  • Search OCLC WorldCat for the holdings of other libraries, including transportation libraries with results in order of the libraries closest to your location.

 

Additional full text reports

  • Search the National Technical Reports Library (NTRL) online catalog. Beginning in 1996, reports have been digitized and can be downloaded, but the NTRL catalog has reports dating back many years earlier.
  • If you need anything prior to 1996 and Metro Library doesn’t have it in its collection, you may contact the NTIS Customer Service Center. They digitize reports as requested for older materials. Metro Library subscribed to NTIS transportation reports on microfiche (in order to save shelf space) from 1971 until approximately 2004 when they became available online. There is a microfiche digitization/printing station in the library for this collection of approximately 20,000 reports. Metro Library pays for employee/internal only access to this database.

Journal articles, conference proceedings, serials, and more

  • Search the National Transportation Library and Transportation Research Board’s integrated Transportation Research Information Database Service (TRID), a bibliographic database for over 1 million abstracts of articles published in journals, conference proceedings, reports, and serial publications.
  • Note the titles and Transportation Research Thesaurus (TRT) vocabulary terms used to describe your topic. If the search yields a transportation journal, you can search the Metro Library catalog for journal holdings and for specific volumes/dates needed. About 15% of the abstracts have links to full text items available online, some free and some for purchase. Contact the Library if you’d like us to purchase an article. We will also add it to the Library’s research collection.

Transportation studies, theses, dissertations, academic research

  • Search the University Transportation Centers‘ (UTC) websites. The United States Department of Transportation (USDOT) selects new host campuses by various subject areas every six years.
  • Notable ongoing programs include the Texas A&M Transportation Institute, the San José State University’s Mineta Transportation Institute, the University of California, Berkeley Harmer E. Davis Transportation Library, the University of South Florida’s Urban Transportation Research Center, and the Northwestern University Transportation Library. Locally, both the UCLA Institute of Transportation Studies and the USC / CSULB Metrans Consortium are or have been participants in the UTC program.

 

Studies from the National Academy of the Sciences’ Transportation Review Board (TRB)

  • Search the Transportation Research Board’s online publications for free reports. The series most applicable to Metro is the Transit Cooperative Research Program (TCRP). After locating reports, look for the bibliography of source material to find additional related resources. Also available via the staff intranet only is access to TRB’s Transportation Research Record (TRR) series of approximately 7,000 peer-reviewed technical reports.

 

Research in Progress (Research that may not be published yet)

  • Search TRB’s Research In Progress database provides access to research projects not yet published.  Search here for research announcements, scope and contact information of researchers. It is a rich resource for finding out who is currently in the process of performing research and/or projects not yet funded.

Guidelines, policies, standards, conference presentations

  • Search the websites of professional industry associations such as the American Public Transportation Association (APTA), the American Association of State Highway and Transportation Officials (AASHTO), the American Planning Association (APA), and the European Union’s International Association of Public Transport (UITP)

A note on transportation data

Transportation data is vital part of this field’s information ecosystem. Due to its complexity and the wide range of resources available, check out our separate guide on datasets and related resources.

You can also begin your research by exploring the Bureau of Transportation Statistics. Their mission is data collection, analysis, and reporting and to ensure the most cost-effective use of transportation-monitoring resources. For transit agency level data, the National Transit Database (NTD) collects information from across all transit agencies and publishes it online as data sets.

For easier access to NTD data, the American Public Transportation Association (APTA) re-publishes extracts on its statistics page.

Transportation Dictionaries

Metro has developed an internal taxonomy tool that is used to tag board reports on https://boardagendas.metro.net  Outside of this resource, we also encourage researchers to spend time looking through the below dicitionaries, glossaries, and acronyms guides. Each provides context on terms frequently found in the field of transportation research.
 
  • Arkansas Highways Transportation Glossary
  • APTA’s Public Transportation Definitions
  • APTA’s Glossary of Transit Terminology
  • Bureau of Transportation Statistics Transportation Expressions Guide and Acronym Guide
  • California Air Resources Board, Glossary of Air Pollution Terms
  • California High Speed Blog Glossary
  • CalTrans Transportation Acronyms
  • Centers for Disease Control and Prevention Transportation Recommendations Glossary
  • Clean Air Act Amendments of 1990: Glossary of Terms
  • Commercial Vehicle Information Systems and Networks Glossary
  • Community Transportation Association Glossary of Transportation Terms
  • Department of Energy, Energy Information Administration Glossary
  • Department of Energy, Glossary of Transportation/Packaging Terms
  • Dictionary of Florida Transportation Acronyms
  • Economic Commission for Europe (UN/ECE), Terminology on Combined Transport (French; English; German; Russian)
  • El Paso County Colorado Glossary of Transportation Terms
  • Eye for Transport Glossary of Transportation Terms (freight)
  • Federal Aviation Administration (FAA) Air Traffic Management Glossary
  • Federal Aviation Administration (FAA) Airports Acronym Glossary
  • Federal Aviation Administration (FAA) Guide for Aviation Medical Examiners Glossary/Acronyms
  • Federal Highway Administration (FHWA) Freight Glossary
  • Federal Highway Administration (FHWA) International Organization Acronyms
  • Federal Highway Administration (FHWA) Planning for Operations Glossary
  • Federal Highway Administration (FHWA) Planning Glossary
  • Federal Motor Carriers Safety Administration (FMCSA) Protect Your Move Glossary of Terms
  • Federal Transit Administration (FTA) Glossary of Budget Terms
  • Federal Transit Administration (FTA) Transit Glossary
  • Florida Department of Transportation (FDOT) Transportation Glossary
  • Foreign Trade Glossary of Terms
  • Glossary of Air Pollution Terms (California Air Resources Board)
  • Glossary of National Transit Database Terms
  • Glossary of Railroad Signal Terms
  • Idaho Transportation Department
  • Industry Canada: Glossary of Automotive Terms
  • ITS Standards Program Glossary of Terms
  • Maritime Administration (MARAD) Glossary of Shipping Terms
  • Metropolitan Transportation Commission Glossary of Planning Acronyms and Terms
  • Mineta Transportation Institute Glossary of Transportation Terms
  • Minnesota Department of Transportation, General Glossary of Terms
  • National ITS Architecture Glossary/U.S. DOT
  • Northeastern Vermont Development Association Transportation Glossary
  • Online TDM Encyclopedia
  • Pipeline and Hazardous Materials Safety Administration (PHMSA) Gas Integrity Management Glossary
  • Pipeline and Hazardous Materials Safety Administration (PHMSA) Hazardous materials and pipeline terms
  • Pipeline and Hazardous Materials Safety Administration (PHMSA) Pipeline Glossary
  • Railroad Retirement Board, Glossary of Railroad Retirement Board Terms
  • Railway Technical Web Pages Glossaries
  • RTAMS Transportation Terminology Glossary
  • Small Urban and Rural Transit Center (SURTC) Transportation Glossary
  • Transportation Expressions/Transportation Acronym Guide
  • TranStats Glossary
  • Twin Cities Metropolitan Council Air Transportation Glossary
  • Union Pacific Railroad Terms Glossary
  • United Nations Economic Commission for Europe, Glossary for Transport Statistics
  • US Highways Glossary of Highway Terms

Additional Transit & Transportation Research and History Resources

  • Transportation Research Information Database (TRID) Transportation Research Board
  • APTA Historical Archives (George Mason University)
  • California Center For Innovative Transportation (UC Berkeley)
  • California Center for Sustainable Energy
  • California Partners For Advanced Transit And Highways, Berkeley Institute Of Transportation Studies
  • Caltrans Transportation Library & History Center
  • Global Metropolitan Studies, UC Berkeley Institute Of Urban And Regional Development
  • Institute For Transportation & Development Policy
  • Metropolitan Transportation Commission Library (San Francisco Bay Area)
  • Mineta Transportation Institute
  • National Center for Bicycling & Walking
  • National Transportation Library Sources of Information In Transportation
  • Northwestern University Transportation Library
  • OECD Online Access to Global Transport Knowledge
  • RAND Corporation Transportation and Infrastructure
  • Safe Transportation Research & Education Center, UC Berkeley
  • Texas A&M Texas Transportation Institute
  • The World Bank: Transport
  • Tranzinfo: The Australian And New Zealand Network Of Transport Libraries
  • TRB Online International Transport Sources
  • U.S. National Transportation Library
  • U.S. National Transportation Library Directory of Transportation Libraries and Information Centers
  • U.S. RITA University Transportation Centers
  • U.S. Transportation Research Board
  • UC Berkeley Transportation Sustainability Research Center
  • UC Irvine Institute of Transportation Studies
  • UCLA Institute of Transportation Studies
  • University Of California Institute Of Transportation Studies Transportation Library
  • University of California Transportation Center
  • University Of Michigan Transportation Research Institute
  • University Of South Florida National Center For Transit Research
  • USC Archives: The Red Cars of Los Angeles
  • USC/CSULB METRANS University Transportation Centers Custom Search
  • Victoria Transport Policy Institute
  • Volpe National Transportation Systems Center, Technical Resources : knowledge repository for the U.S. DOT Volpe Center, houses more than 50 years of transportation research including more than 4,500 U.S. DOT Volpe Center staff-authored publications, 18,000 books, and 75 journal subscriptions.

STILL NEED SUPPORT?

For reference questions, please email us at library@metro.net or fill out the following form:

  • Last Updated April 28, 2026

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