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The AAR is headquartered in Washington, D.C., not far from the Capitol.Its information technology subsidiary, Railinc, is based in Cary, North Carolina.Railinc IT systems and information services, including the Umler system, the Interline Settlement System and Embargoes system are an integral part of the North American rail infrastructure.
AAR: Association of American Railroads: AB: Akron Barberton Cluster Railway: ABB: Akron and Barberton Belt Railroad: ABCK: Alaska British Columbia Transportation Company: ABEC: Aberdeen Electric Company: ABL: Alameda Belt Line: ABM: Texas and Pacific Railway → Missouri Pacific Railroad: ABN: Alabama Northern Railway → Ashland Railway: ABPR
AAR Corp. is an American provider of aircraft maintenance services to commercial and government customers worldwide. The company is headquartered in Wood Dale, Illinois , a Chicago suburb. The company employs about 6,000 people, operating in about 30 different countries.
The AAR wheel arrangement system is a method of classifying locomotive (or unit) wheel arrangements that was developed by the Association of American Railroads. Essentially a simplification of the European UIC classification , it is widely used in North America to describe diesel and electric locomotives (including third-rail electric ...
AAR formed its TTCI subsidiary to administer the contract in 1998 [4] and the contract was renewed periodically as a single-source award. [ 5 ] [ 6 ] In March 2021, the FRA awarded the operations and maintenance contract to ENSCO , who assumed responsibility for research and development, testing, engineering, and training services at TTC from ...
By the 1850s, railroad operating rules, often printed as pamphlets or on the back of a time card, had evolved to near universal application. On April 14, 1887 representatives of 48 railroads voted for the adoption of what is now known as the Standard Code of Operating Rules (SCOR), published by the AAR. Thus, all railroad rule books in North ...
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An after action review (AAR) is a technique for improving process and execution by analyzing the intended outcome and actual outcome of an action and identifying practices to sustain, and practices to improve or initiate, and then practicing those changes at the next iteration of the action [1] [2] AARs in the formal sense were originally developed by the U.S. Army. [3]