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A railway signal is a visual display device that conveys instructions or provides warning of instructions regarding ... rather than their colour, determines the ...
There are two main types of signaling aspect systems found in North America, speed signaling and weak route signaling. [citation needed] Speed signaling transmits information regarding how fast the train is permitted to be going in the upcoming segment of track; weak route signaling transmits information related to the route a train will be taking through a junction, and it is incumbent upon ...
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 introduced at Drammen station in 1893.
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]
In North American railway traffic control, a Form 19 or 31 train order would modify their schedule. An order which did not require a train to stop was called a "Y" (yellow) train order. An order which did not require a train to stop was called a "Y" (yellow) train order.
The driver uses their route knowledge, reinforced by speed restriction signs fixed at the lineside, to drive the train at the correct speed for the route to be taken. This method has the disadvantage that the driver may be unfamiliar with the required speed over a junction onto which they have been diverted due to some emergency condition.
The result is that the signal aspects (patterns of lights) and indications (meanings) differ widely, both between the former State systems and even within States. Mechanical signalling has effectively vanished from the Australian non-preserved railway scene, leaving the divergent power signalling schemes. This causes conflicts between the systems.
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.