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The Civil Service Retirement System (CSRS) is a public pension fund organized in 1920 that has provided retirement, disability, and survivor benefits for most civilian employees in the United States federal government. Upon the creation of a new Federal Employees Retirement System (FERS) in 1987, those newly hired after that date cannot ...
The United States Department of Education is a cabinet-level department of the United States government.It began operating on May 4, 1980, having been created after the Department of Health, Education, and Welfare was split into the Department of Education and the Department of Health and Human Services by the Department of Education Organization Act, which President Jimmy Carter signed into ...
A signal light that is considerably smaller and closer to the ground than a high-mast signal; often absolute, and placed within interlocking limits, its aspects tend to differ from those conveyed by a taller signal for certain indications. Also called 'pot' or 'jack'. Dwell time The time a train spends at a scheduled stop without moving.
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The Los Angeles Metro Rail is an urban rail transit system serving Los Angeles County, California in the United States. It consists of six lines: four light rail lines (the A, C, E and K lines) and two rapid transit lines (the B and D lines), serving a total of 101 stations. The system connects with the Metro Busway bus rapid transit system ...
A signal in the Flushing–Main Street station. Most trains on the New York City Subway are manually operated. As of 2022, the system currently uses automatic block signaling, with fixed wayside signals and automatic train stops. Many portions of the signaling system were installed between the 1930s and 1960s.
North American railroad signaling. Standards for North American railroad signaling in the United States are issued by the Association of American Railroads (AAR), which is a trade association of the railroads of Canada, the US, and Mexico. Their system is loosely based on practices developed in the United Kingdom during the early years of ...