Skip to Content


Metro’s Dorothy Peyton Gray Transportation Library and Archive is one of the most comprehensive transit operator-owned library resources in the United States. As the only multimodal transportation library in Southern California, we serve employees, the public, governments and research institutions. Our origins date back to the days of our public transportation predecessors, the Los Angeles Consolidated Electric Railway (1895) and Pacific Electric Railway (1899). Our family tree of direct predecessors can be found on PeoplePlotr and L.A.’s transportation history timeline can be found on TikiToki .

The Library was renamed The Dorothy Peyton Gray Transportation Library and Archive by the Los Angeles County Metropolitan Transportation Authority Board of Directors in October, 2001.  Our name commemorates the distinguished 13-year career that built our transportation library into one of the nation's finest.  We are recognized for providing the research, resources, history, and archives that give context to transportation issues and history in Los Angeles and Southern California, as well as leadership within the transportation research community. Our library catalog is accessible 24/7 at

We partner with a number of local, national, and international entities in cooperative ventures and information sharing. We also work with the National Transportation Library and the Transportation Research Board to improve the availability of transportation-related information needed by federal, state and local decision-makers.  We provide timely access to information supporting transportation policy, research, operations, and technology transfer. You can find more of our curated information online via our Primary Resources blog and our Los Angeles focused Transportation Headlines blog.

Our Flickr photostream contains thousands of unique historic images organized into collections and photosets to assist you with comprehensive research, searching by keyword tags or with a map depicting where photographs were taken.

Our YouTube channel brings together not only our own historic (and often humorous) video collection, but content provided by others to present a comprehensive look at Los Angeles transit and transportation via the moving image.

You can also find/follow us on Facebook , Google+ , Tumblr , HistoryPin , Twitter and the Online Archive of California .

For reference questions, please email us at