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Signal types. North American signals are commonly of three types. Absolute – Absolute signals are usually connected to an interlocking controlled by a block operator or train dispatcher. Their most restrictive aspect is "stop" and trains cannot pass them at stop unless they obtain special authority.
A railway signal is a visual display device that conveys instructions or provides warning of instructions regarding the driver's authority to proceed. [ 1 ] The driver interprets the signal's indication and acts accordingly. Typically, a signal might inform the driver of the speed at which the train may safely proceed or it may instruct the ...
Norwegian railway signaling. The signalling system used on the rail transport in Norway is regulated by the Regulations of December 4, 2001 no. 1336 about signals and signs on the state's railway network and connected private tracks. The first signalling system on the Norwegian railway system was a mechanically operated semaphore system ...
Glossary of North American railway terms. This article contains a list of terms, jargon, and slang used to varying degrees by railfans and railroad employees in the United States and Canada. Although not exhaustive, many of the entries in this list appear from time to time in specialist, rail-related publications.
The railway signalling system used across the majority of the United Kingdom rail network uses lineside signals to control the movement and speed of trains. The modern-day system mostly uses two, three, and four aspect colour-light signals using track circuit – or axle counter – block signalling. [1][2] It is a development of the original ...
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 ...
Reichsbahn. Originally, the railway company of each German state had its own signalling system. After these companies were merged into the German Imperial Railway (Deutsche Reichsbahn), a common signalling system, the H/V system, was created based on two key types of signal. However, Bavaria was permitted to use its own designs of signal, with ...
Application of railway signals. Semaphore stop signals protecting the convergence of two tracks into one. The application of railway signals on a rail layout is determined by various factors, principally the location of points of potential conflict, as well as the speed and frequency of trains and the movements they require to make.