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Stack light in automated production for in-line quality inspection. Stack lights (also known as signal tower lights, indicator lights, andon lights, warning lights, industrial signal lights, or tower lights) are commonly used on equipment in industrial manufacturing and process control environments to provide visual and audible indicators of a machine's status to machine operators, technicians ...
Intake tower. An intake tower or outlet tower [1] is a vertical tubular structure with one or more openings used for capturing water from reservoirs and conveying it further to a hydroelectric or water-treatment plant. Unlike spillways, intake towers are intended for the reservoir's regular operation, conveying clean, debris-free water for ...
Tower en route control. In United States aviation, tower en route control ( TEC) is a collection of published low-altitude, short-distance IFR routes through large metropolitan areas that require no level of air traffic control higher than approach-control facilities.
Sedona Airport, in Arizona 's Verde Valley, is one of the many airports that operate without a control tower. In aviation, a non-towered airport is an airport without a control tower, or air traffic control (ATC) unit. The vast majority of the world's airports are non-towered. [citation needed] In the United States, there are close to 20,000 ...
Procedural control is a method of providing air traffic control services without the use of radar. It is used in regions of the world, specifically sparsely populated land areas and oceans, where radar coverage is either prohibitively expensive or is simply not feasible. It also may be used at very low-traffic airports, or at other airports at ...
The use of the pylon, a simple tower structure, has also helped to build railroad bridges, mass-transit systems, and harbors. Control towers are used to give visibility to help direct aviation traffic. Other. To access tall or high objects: launch tower, service tower, service structure, scaffold, tower crane
Panopticon. This plan of Jeremy Bentham's panopticon prison was drawn by Willey Reveley in 1791. The panopticon is a design of institutional building with an inbuilt system of control, originated by the English philosopher and social theorist Jeremy Bentham in the 18th century. The concept is to allow all prisoners of an institution to be ...
Anchorage Air Route Traffic Control Center. Atlanta Air Route Traffic Control Center. Boston Air Route Traffic Control Center. Chicago Air Route Traffic Control Center. Cleveland Air Route Traffic Control Center. Denver Air Route Traffic Control Center. Fort Worth Air Route Traffic Control Center.