America's freight railroads operate the safest, most efficient, cost - effective and environmentally sound freight transportation system in the world.

Positive Train Control

Positive Train Control

Communication Based Train Control


We’re looking forward to meeting old friends and new partners in the railroad industry.

AAR 32nd Annual Quality Assurance Conference
Jan 28-30, 2020, Forth Worth, TX
Click here for more information

Click here to register.

Download Program Guide


Welcome to 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 in Pueblo, Colorado, 21 miles northeast of Pueblo Airport, TTCI manages extensive track facilities, state-of-the-art laboratory facilities, and a 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.


To be the provider of choice for advancing railway safety and technology.


Mission & Values

We provide our customers with highly effective and efficient railway research, testing, training and technical support.

In doing so, we stand by the following guiding principles:

  • We believe integrity and respect are at the core of everything we do.
  • We encourage personal growth, cultivate positive teams, and foster a family spirit.
  • We never sacrifice safety or quality - ever.


TTCI manages the Federal Railroad Administration's (FRA) Transportation Technology Center (TTC), located just 21 miles northeast of Pueblo, Colorado. TTC is operated under a care, custody, and control contract with the FRA. This 52-square mile, secure and remote site operates with a vast array of specialized laboratories and track. TTC enables isolated testing for all categories of freight and passenger rolling stock, vehicle and track components, and safety devices.

There are 48 miles of railroad track available for testing locomotives, vehicles, track components, and signaling devices at the Transportation Technology Center (TTC), Pueblo, Colorado. Specialized tracks are used to evaluate vehicle stability, safety, endurance, reliability, and ride comfort. Using TTC's tracks eliminates the interferences, delays, and safety issues encountered on an operating rail system.

Test Tracks



2019 Annual Review Presentations

AAR-TTCI R-reports & TDs_Catalog & order forms

AAR Radio Frequency

Recent FCC report and orders regarding mandatory narrow band migrations have resulted in mandatory licensing restrictions.

Migration Information

AAR Intermodal

Intermodal Interchange Rules and Free Intermodal Publications

AAR Intermodal Interchange Rules - April 2019

Appendix F Complete Matrix - April 2019                         

Form J-2

AAR Automotive

Chock Instructions

OEM Inop Procedures