Transportation Technology Center, Inc. (TTCI), a wholly owned subsidiary of the Association of American Railroads. TTCI is a ... world-class transportation research and testing organization, providing emerging technology solutions for the railway industry throughout North America and the world. Headquartered near Pueblo, Colorado, TTCI performs extensive railway and surface transportation research and testing in service, in controlled simulated service environments and at state-of-the-art laboratory facilities. Our highly talented engineering and support staff to make TTCI the obvious choice for meeting your research and testing needs. We encourage you to explore our web site, learn more about us, and contact us to discuss how we can work together. read more