Commonly Used Terms
Association of American Railroads
What is the Association Of American Railroads?
The Association of American Railroads, AAR, is an organization representing the major freight railroads of North America and some other regional commuter railroads. When required, the AAR represents its members' interests to the public at large and to Congress and government regulators in particular. American freight railroads make sizable investments across the country that enable an efficient freight rail network in moving the goods that make modern life possible, and connecting American businesses to markets from coast to coast and beyond.
What do they do?
Some of their functions are:
- Policymaking: The AAR, along with the requisite authority, makes public policies in the interest of the industry to make it a more efficiently running system.
- Standard-setting: The AAR has the authority to establish safety, security, operating standards that provide seamless operations across the country.
- Industry Data, Reports, and Publications: AAR prepares weekly, quarterly, and annual statistical reports to provide comprehensive insight into the operations of North America's freight railroads.
- Research and Technology Initiatives: The AAR has two subsidiaries, The Transportation Technology Centre, Inc. (TTCI), and Railinc. These subsidiaries research and development projects to increase the safety, security, and efficiency of the railroad industry. Railinc provides 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.
The AAR ensures that standards are maintained throughout the railroad network. They constantly update these standards in alliance with elected officials and leaders. These are a comprehensive set of guidelines that are followed in order to maintain an efficiently running system throughout the country. The AAR also plays a significant role in contributing to the economy by lowering transportation costs that might, if freight trains did not exist, be a costly affair.
Average Payment Period (for materials)
Average Cost per Unit
Available to Sell (ATS)
Available to Promise (ATP)
Automated Storage-Retrieval System (AS-RS)
Automated Manifest System (AMS)
Automated Guiding Vehicle System (AGVS)
Automated Commercial Environment (ACE)
Automated Clearing House (ACH)
Automated Call Distribution
Automated Broker Interface (ABI)
Association of American Railroads
Approved Vendor List (AVL)
Any Quantity Rate (AQ)
Anticipated Delay Report
American Waterways Operators
American Trucking Association (ATA)
American Standard Code for Information Interchange
American Society of Transportation & Logistics
American Society for Training and Development (ASTD)
American Society for Testing and Materials (ASTM)
American Society for Quality (ASQ)
American National Standards Institute (ANSI)
American Customer Satisfaction Index (ACSI)
All Cargo Carrier
Airport and Airway Trust Fund
Airline Terminal Fee (ATF)
Air Transport Association of America
Air Cargo Containers
Aggregate Tender Rate
Aggregate Inventory Management
After Sale Service
Advanced Shipping Notice
Advanced Planning and Scheduling (APS)
Advance Material Request
Actual to Theoretical Cycle Time
Actual Cost System
Activity Network Diagram
Activity Based Planning (ABP)
Activity Based Management (ABM)
Activity Based Costing System
Activity Based Costing Model
Activity Based Costing (ABC)
Activity Based Budgeting (ABB)
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