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Simple English; Slovenčina ... The aspect is the visual appearance of the signal; the indication is the meaning. [2] ... Highball Signal – Historic railroad signal ...
The first signals employed on an American railroad were a system of flags used on the Newcastle and Frenchtown Turnpike and Rail Road in the 1830s. The railroad then developed a more effective system consisting of wooden balls, painted red, white or black, and hoisted up or down a pole on a rope-and-pulley system.
A Class 66 locomotive (right) is waiting at a red signal while a First Great Western (now Great Western Railway) passenger train (left) crosses its path at a junction. Railway signalling (BE), or railroad signaling (AE), is a system used to control the movement of railway traffic.
Signals made by the Pennsylvania Railroad that make use of a circular disc with up to eight lights mounted in a circle, with one light in the center. The lights would line up in a straight line to give the indication. [194] [195] Power Move (PM) When multiple locomotives move within a place to get to another without railcars [citation needed]
Different legacy systems still in use, however, mean that some signal indications can be shown in several different ways. Within the United States, each railroad operator formulates its own operating practices, subject to the regulations in Title 49 Part 236 of the Code of Federal Regulations). However, there are two major groups of railroads ...
A single signal may be equipped to function both as a stop signal and a distant signal. Some distant signals are in the form of a 'fixed distant'. That is: they only ever display a 'caution' aspect and never a 'clear' one. Such signals are usually in the form of a standard distant arm fixed in the horizontal position to the signal post.
The first reached by a train is known as the home signal. The last stop signal, known as the starting or section signal, is usually located past the points etc. and controls entry to the block section ahead. The distance between the home and starting signals is usually quite short (typically a few hundred yards), and allows a train to wait for ...
A British Upper Quadrant semaphore signal. In the days of the first British railways, "policemen" were employed by every railway company. Their jobs were many and varied, but one of their key roles was the giving of hand signals to inform engine drivers as to the state of the line ahead. [3]