UDOT Library

Library Services
UDOT’s Lester F. Wire Library houses a small in-house collection of legal reference books. Interlibrary loan service is available to access journal articles and other materials from libraries around the world. A growing digital library, featuring mostly AASHTO publications, is hosted in UDOT’s Learning Portal for the use of UDOT employees.
A variety of publication sources are linked below; all of them are free.
Literature searches are also available.
Contact UDOT’s librarian for more information or assistance with any of these services.
About Lester Farnsworth Wire

Left: Replica of the first electric traffic signal; Center: Lester Wire, circa 1912; Right: Lester Wire with a later model of his invention
“He Invented the World’s First Traffic Light” (unknown magazine, 1956)
“Lester F. Wire Invents the Traffic Light” (Utah State Historical Society, reposted to FamilySearch)
“When Inventor’s Light Went On, Traffic Control Changed Forever” (Deseret News)
“Utah Policeman Never Got Credit for Inventing Contraption That Was the First Electric Traffic Light” (Salt Lake Tribune, 1985)
“Peak Named for Inventor” (Deseret News, 1967) [partial]
The World’s First Electric Traffic Light (postcard, 1965)
Online Resources
Utah Code
Utah Government Digital Library
Utah Government Digital Library
Searchable database of state agency publications. Maintained by the Utah State Library.
National Transportation Library
National Transportation Library
The NTL provides access to transportation-related research, reports, data, and reference services. Their Ask a Librarian feature allows patrons to submit research and reference requests and get answers via email, chat, or phone.
ROSA P (Repository and Open Science Access Portal)
NTL’s Digital Library. This is an excellent resource for transportation statistics on a variety of topics.
Publications
Digital Library
The digital library is comprised mainly of complimentary publications released by AASHTO along with a few we have bought. You can browse the AASHTO Bookstore for other publications available for purchase. If you need an AASHTO publication that is not in our digital library, please contact the librarian to see if funds are available to buy it. Making one purchase for the library instead of multiple purchases of the same item for different groups in UDOT saves money. Join the AASHTO publications mailing list to receive their catalog and alerts about new releases.
We’re also beginning to add UDOT and TRB items to the digital library.
NCHRP Reports
Search TRID for a Publication
TRID is a comprehensive database resource for transportation research and literature searches.
Transportation Industry Magazines
Intelligent Transport

ITS International

Public Roads (published by USDOT/FHWA)

Roads & Bridges

TRB Publications
UDOT Research Reports
Contact UDOT’s Librarian, Joni DeMille (jdemille@utah.gov), for assistance.