block signaling - definição. O que é block signaling. Significado, conceito
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O que (quem) é block signaling - definição

SYSTEM WITH SIGNALS USED TO CONTROL RAILWAY TRAFFIC
Railway signalling/Temp; Railway signaling; Railway Signalling; Block signaling; Railroad signaling; Block signals; Block signal; Railroad traffic control; Railway traffic control; Train detection; Signalling systems; Railway signaling system; Railway signalling system; Railway Signaling; Fixed block; Time interval working
  • Vertical colour light signal on the [[Enshū Railway Line]], Japan
  • First Great Western]] passenger train (left) crosses its path at a junction.
  • Traditional mechanical signals on display at a railway station in [[Steinfurt]], Germany
  • Original 1932 operation of Sydney's speed controlled trips. Note: The signal that allows the trains to proceed into the platform is a "call on" signal and conflicting sources say that the small lower light was either white, yellow or green.
  • ''stop and stay'' aspect]]). The next closest signal is yellow (''proceed with caution''), and the nearest signal shows green (''proceed'').

Automatic block signaling         
  • access-date=February 21, 2022 }} {{Registration required}}</ref>
  • position light signals]] each governing one direction of travel on [[Norfolk Southern Railway]]'s [[Enola Branch]] (former [[Pennsylvania Railroad]])
RAILROAD COMMUNICATIONS SYSTEM
Automatic block signalling; Automatic block signal; Automatic Block Signal; Automatic Block System; Automatic Block Signaling
Automatic block signaling (ABS), spelled automatic block signalling or called track circuit block (TCB ) in the UK, is a railroad communications system that consists of a series of signals that divide a railway line into a series of sections, called blocks. The system controls the movement of trains between the blocks using automatic signals.
Block signal         
·add. ·- One of the danger signals or safety signals which guide the movement of trains in a block system. The signal is often so coupled with a switch that act of opening or closing the switch operates the signal also.
Absolute block signalling         
  • The location of signals at signal boxes A, B and C. Up is defined as being towards C, and only signals in the Up direction are shown for clarity. Our example train will travel in the Up direction.
SIGNALLING SCHEME DESIGNED TO ENSURE THE SAFE OPERATION OF A RAILWAY BY ALLOWING ONLY ONE TRAIN TO OCCUPY A DEFINED SECTION OF TRACK (BLOCK) AT ANY TIME
Block section; Absolute Block; Block apparatus; Block instruments; Block telegraph; Absolute block; British absolute block signalling
Absolute block signalling is a British signalling scheme designed to ensure the safe operation of a railway by allowing only one train to occupy a defined section of track (block) at a time. This system is used on double or multiple lines where use of each line is assigned a direction of travel.

Wikipédia

Railway signalling

Railway signalling (BE), also called railroad signaling (AE), is a system used to control the movement of railway traffic. Trains move on fixed rails, making them uniquely susceptible to collision. This susceptibility is exacerbated by the enormous weight and inertia of a train, which makes it difficult to quickly stop when encountering an obstacle. In the UK, the Regulation of Railways Act 1889 introduced a series of requirements on matters such as the implementation of interlocked block signalling and other safety measures as a direct result of the Armagh rail disaster in that year.

Most forms of train control involve movement authority being passed from those responsible for each section of a rail network (e.g. a signalman or stationmaster) to the train crew. The set of rules and the physical equipment used to accomplish this determine what is known as the method of working (UK), method of operation (US) or safeworking (Aus.). Not all these methods require the use of physical signals, and some systems are specific to single track railways.

The earliest rail cars were hauled by horses or mules. A mounted flagman on a horse preceded some early trains. Hand and arm signals were used to direct the "train drivers". Foggy and poor-visibility conditions later gave rise to flags and lanterns. Wayside signalling dates back as far as 1832, and used elevated flags or balls that could be seen from afar.