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Dispatch consoles used by Denver RTD, a transit service provider in a US city. Drawing at right illustrates the controls associated with a single channel on the console. Photos courtesy of US Department of Transportation. One method for organizing assignments in a manual dispatch system is to use a zone map system.
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There is no need for block operators, as there is direct verbal communication between the dispatcher and driver. Authority to occupy a track is received directly from the dispatcher, with the train crew filling out the details on a form, similarly to as in Track Warrant Control. At the end of their authority, the crew "fulfills" the order ...
Computer-assisted dispatch systems use one or more servers located in a central dispatch office, which communicate with computer terminals in a communications center or with mobile data terminals installed in vehicles. There are a multitude of CAD programs that suit different department needs, but the fundamentals of each system are the same.
A police officer accessing a mobile data terminal in a police car. A mobile data terminal (MDT) or mobile digital computer (MDC) is a computerized device used in emergency services, public transport, taxicabs, package delivery, roadside assistance, and logistics, among other fields, to communicate with a central dispatcher.
The Manual on Uniform Traffic Control Devices for Streets and Highways (usually referred to as the Manual on Uniform Traffic Control Devices, abbreviated MUTCD) is a document issued by the Federal Highway Administration (FHWA) of the United States Department of Transportation (USDOT) to specify the standards by which traffic signs, road surface markings, and signals are designed, installed ...
These take the form of routing decisions at controlled points that authorize a train to proceed or stop. Local signaling logic will ultimately determine the exact signal to display based on track occupancy status ahead and the exact route the train needs to take, so the only input required from the CTC system amounts to the go, no-go instruction.