As the standard-setting organization for North America's railroads, AAR establishes standards that provide for seamless and safe operations across America's 140,000 mile freight rail network.
Through its two subsidiaries, TTCI and Railinc, AAR supports continued research and development projects to enhance the safety, security, and efficiency of the railroad industry. TTCI is the world's leading research, development, and testing facility, and develops next-generation advancements in safety and operational efficiency. Railinc serves as the rail industry's leading resource for rail data, information technology, and information services, and uses one of the world's largest data networks to track customer shipments. AAR also supports the Railroad Research Foundation, a world-class policy research organization dedicated to sustaining a safe, secure, and technologically advanced rail network.