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Encyclopedia > Norwegian railway signals
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The signaling 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 Norwegian railway system comprises 4,058 km of standard gauge (1. ... Jump to: navigation, search December 4 is the 338th day (339th on leap years) of the Gregorian calendar. ... Jump to: navigation, search 2001: A Space Odyssey. ...


The first signalling system on the Norwegian railway system was a mechanically operated semaphore system introduced at Drammen station in 1893. The first electrically operated light signal system was delivered by AEG in 1924. Today, only electrically operated light signals are used. The semaphore line was a signalling system invented by the Chappe brothers in France. ... County Buskerud Landscape Municipality NO-0602 Administrative centre Drammen Mayor (2003) Tore Opdal Hansen (H) Official language form Neutral Area  - Total  - Land  - Percentage Ranked 366 137 km² 135 km² 0. ... Jump to: navigation, search 1893 was a common year starting on Sunday (see link for calendar). ... AEG (Allgemeine Elektrizitäts-Gesellschaft) (English Translation: General Electricity Company) is a German producer of electronics and electrical equipment. ... Jump to: navigation, search 1924 was a leap year starting on Tuesday (link will take you to calendar). ...

Contents


Signalling remedies

The following signalling remedies are used:

  • Signal flags
  • Hand-held signal lamps
  • Signal whistle
  • The signal giver's arms
  • Fixed light signals
  • Fixed sound signals
  • Signal signs
  • Orientation poles
  • Locomotive whistle
  • Locomotive and train signal lamps

The fundamental meaning of the signal colors

  • Red does always indicate "stop".
  • Violet indicates that the appurtenant level crossing signal shows "Stop short of the level crossing".
  • Yellow indicates "caution".
  • Green indicates "permission to run".
  • White indicates "clear line".

Light signals

The regular light signals show one of these signals:


Main signals

Image Signal Meaning Used in
Image:Signal20A.gif Signal 20A - Stop - flashes The train must stop short of the signal. Home signals, block signals.
Image:Signal20B.gif  Image:Signal20B-enkel.gif Signal 20B - Stop The train must stop short of the signal. Departure signals, inner signals.
Image:Signal21.gif  Image:Signal21-enkel.gif Signal 21 - Proceed (in different track) The train can proceed, usually via one or more deviant switches. Home signals, departure signals, inner signals, block signals.
Image:Signal22.gif Signal 22 - Proceed The train can proceed, not via deviant switches. Home signals, departure signals, inner signals, block signals.

Norwegian railway signal 20A - Stop. ... Norwegian railway signal 20B - Stop. ... Norwegian railway signal 20B - Stop (alternative version). ... Norwegian railway signal 21 - Proceed (in different track). ... Norwegian railway signal 21 - Proceed (in different track) (alternative version). ... Double switch aka scissors crossovers A railroad switch (known in British and Australian English as (a set of) points or, in technical usage, a turnout) is a mechanical installation provided at a point where rail track A divides into two tracks B and C. It can be set in either... Norwegian railway signal 22 - Proceed. ...

Fail Safe

If one of the green lights in signal 22 fails, the indication becomes the lower speed signal 21 - this is fail-safe. Other nearby countries reverse the role of the single green aspect and double green aspect. Safety engineering is used to assure that a life-critical system behaves as needed even when pieces fail. ...


Distant signals

Image Signal Meaning
Image:Signal23.gif Signal 23 - Expect stop - flashes The appurtenant main signal shows signal 20A or 20B.
Image:Signal24.gif Signal 24 - Expect to proceed (in different track) - flashes The appurtenant main signal shows signal 21.
Image:Signal25.gif Signal 25 - Expect to proceed - flashes The appurtenant main signal shows signal 22.

Norwegian railway signal 23 - Expect stop. ... Norwegian railway signal 24 - Expect to proceed (in different track). ... Norwegian railway signal 25 - Expect to proceed. ...

Wrong side failure

If the yellow light in signal 24 fails, the signal displays a higher speed indication, which would be a wrong side failure. To prevent this, the yellow light would be proved to be operating before the green light is displayed. A false clear or wrong side failure is a railway signal that shows a green for proceed indication when it should be showing a red for stop indication. ...


Warning systems

Norway uses the Ericsson ATP warning system, also used on Perth's suburban railway network. Perth is the name of several towns and cities: Perth, Scotland is the original Perth, after which the others are named, and the administrative town of the region of Perth and Kinross in Scotland. ...


See also


  Results from FactBites:
 
Norwegian railway signals - Wikipedia, the free encyclopedia (312 words)
The signaling 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.
If the yellow light in signal 24 fails, the signal displays a higher speed indication, which would be a wrong side failure.
Encyclopedia: Norwegian railway signals (712 words)
A false clear or wrong side failure is a railway signal that shows a green for proceed indication when it should be showing a red for stop indication.
Rail stubs Jump to: navigation, search In railway signalling, a home signal (British English and sometimes in American English as well) or absolute signal (US English) is a signal that protects junctions, points (switches in American terminology), movable bridges platforms, or block sections.
Overview In railway signalling, a distant signal (British English) or approach signal (US English) is a signal that repeats the aspects of a signal some distance ahead.
  More results at FactBites »


 

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