for the sigma n-transcription factor activator protein in prokaryotes, see ntrc the national transportation research center (ntrc) is an institution, located in knoxville, tennessee, that conducts research and development aimed at increasing the efficiency and safety of transportation systems and reducing their energy utilization and effects on the environment. it is operated as a partnership between the united states department of energy, the university of tennessee, and oak ridge national laboratory (ornl) and is located approximately half-way between the university campus and the ornl site in oak ridge. about two-thirds of the  ntrc building contains research laboratories. ==external links== *ntrc official web site 
Buildings_and_structures_in_Anderson_County,_Tennessee Oak_Ridge_National_Laboratory Organizations_based_in_Knoxville,_Tennessee Transportation_in_the_United_States