Dutch railway signalling

The current Dutch railway signalling system operated by ProRail has been in effect since 1954 on the Dutch Railways network

It was designed to be one of the simplest in Europe and is integrated to the ATB, the system of cab signalling widespread on the Dutch network.

Dutch trains normally use the right-hand track and the signals are placed at the right of the track; in sections also equipped to run on the left track, the signals are placed on the left.

Light signals

Below are common forms:

raised (hooggeplaatst) signal, can be used anywhere;
ground (laaggeplaatst) or dwarf (dwergsein) signal, used in areas where speeds do not exceed 40 km/h (do not have numeric display)
distant signal (voorsein).

Their aspects are categorized according to the colour. (There is never more than one colour at a time):

Green Aspect

Green: proceed (in the case of a dwarf signal, speed restricted to 40 km/h);
Flashing green: proceed with restricted speed, max. 40 km/h;
Flashing green with number: proceed speed restricted, max. 10× the displayed number in km/h

Yellow Aspect

Yellow: reduce speed to max 40 km/h (the next signal may display a red aspect);
Yellow with number displayed: reduce speed to 10× the displayed number in km/h);
Yellow with flashing number displayed: reduce speed (to 10× the displayed digit in km/h), and keep the brake applied if the next signal still shows a yellow aspect (used to signal short sections);
Flashing yellow: proceed at sight (track beyond the signal may be occupied (such as in shunting operations)).

Red Aspect

Red: stop in front of the signal;
Flashing red: stop in front of the signal (used for sections that are out of order for engineering works).

Speed displays

	Reference speed of the line (10x the displayed digit in km/h) allows the speed increase to the indicated value, if absent: 125 km/h) when the rear of the train has passed the display.
	Speed restriction: reduce speed to the indicated value (10x the displayed digit in km/h).
	Speed restriction (10x the displayed digit in km/h) when the front of the train has passed the display. It indicates both the start of the speed restricted zone (indicated by the yellow triangle on edge) or the permission to accelerate to a speed lower than the reference speed of the line (in that case, after the rear of the train has passed the sign).

External links

all Dutch railway signals (in dutch)

Railway signalling

Block systems	Absolute block signalling Automatic block signaling Centralized traffic control Communications-based train control Direct traffic control European Train Control System Moving block Radio Electronic Token Block Token Track warrant Train order operation

Signalling control	Block post Integrated Electronic Control Centre Interlocking Lever frame Rail Operating Centre Solid State Interlocking Westlock Interlocking

Signals	Application of railway signals Cab signalling North American railroad signals Railway semaphore signal

Train detection	Axle counter Track circuit Track circuit interrupter Treadle

Train protection	ALSN ASFA Automatic train control Automatic train protection Automatic train stop Automatic Warning System Automatische treinbeïnvloeding Balise Catch points Chinese Train Control System Continuous Automatic Warning System Contrôle de vitesse par balises EBICAB IIATS Integra-Signum Interoperable Communications Based Signaling Crocodile Linienzugbeeinflussung Positive Train Control Pulse code cab signaling Punktförmige Zugbeeinflussung RS4 Codici Sistema Controllo Marcia Treno Slide fence Train Automatic Stopping Controller Train Protection & Warning System Train stop Transmission balise-locomotive Transmission Voie-Machine

Organisations	AAR AREMA FRA HMRI IRSE Transport Canada UIC

By country	Australia Belgium Canada Finland France Germany Greece Italy Japan Netherlands North America Norway Poland Sweden Switzerland United Kingdom

This article is issued from Wikipedia - version of the Friday, July 17, 2015. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.