Protection Signals




Hp 0

colour light
Sh 0 

stop for train and shunting movements, see also colour light signal aspects 

Sh 0 

Sh 0  Sh 0-Rückseite 
front rear
Halt! Fahrverbot! / Stop! No passing! Derailer
A sign looking like the mechanical Sh 0 is also displayed on (almost) every buffer, see also Sh 2.

See also special rules.

Sh 1 (DB)
Ra 12 (DR)

colour light
Sh 1 
Sh 1  Sh 1-Rückseite 
front rear
Fahrverbot aufgehoben / Shunting permitted.
If used in conjunction with an Hp 0 indicates that the stop aspect is void for shunting movements.
If used at a derailer indicated that the derailer is off, but gives no permission to proceed.
Is valid only for the first shunting movement, i.e. permission to proceed is given only when the driver sees the signal changing from Sh 0 to Sh 1.
If used in conjunction with a "W" board, always wait for permission by points operator
Ra 12
(at a Ra 11)

Ra 12
Ra 12 are the lit two white lamps mounted to a Ra 11

Rangierfahrtsignal / Shunting permitted. Order to proceed.

see also special rules and DR's Ra 11 camera.gif (1065 Byte) 

Sh 2  Sh 2  Schutzhalt / Protective stop:
stop (buffer at dead entry lines, drawbridges, turntables, closed gates, engineering works, etc.).
At night equipped with a single red lantern.
Usually used at dead-end tracks if this track is a direct entry line or entered by regular train movements (e.g. at  a terminal station)
Vr 0
[was Sh 3]
Sh 3  Wärtervorsignal / Expect an Sh 2 board.
At night equipped with two amber lanterns. This is a mobile board placed by staff when there is a need to announce an Sh 2 board. Since the aspect and meaning are the same as (semaphore) distant signal announcing halt, the signal has been renamed to Vr 0.
Sh 3 Kreissignal  Kreissignal ("Circle Signal") / Stop immediately.
This signal is given by swinging a white-red-white flag or a red lantern in a circular manner.
The signal can also be given by swinging any object, your arm, or any light in a circular manner.
Sh 5 ooo  ooo  ooo  speaker.gif (924 Byte)  Horn- und Pfeifsignal ("Horn and Whistle Signal") / Stop immediately.
Three short tones repeated multiple times.

Some special rules for track blocking signals:

For shunting movements usually an indication of a clear track permits proceeding but does not order to proceed (for an explanation of this subtle difference see the signalling basics page).

The reason for the signals not being a proceed order is that it is sometimes forgotten to reset a manually operated line-close signal to stop after is was passed by a shunting movement. To minimise the dangers involved with that a movement must not proceed a clear signal unless ordered to do so by additional signal or order.

DB Raute  [obsolete]
Raute ("Diamond"): Could be mounted to Sh 0/Sh 1 mechanical signals. An Sh 1 mechanical signal was a permission to proceed but not an order, i.e. unaccompanied shunting movements might proceed only if ordered to do so, e.g. by Ra 1 or verbal order. If the signal was equipped with the diamond, the Sh 1 is to be interpreted as a proceed order.
In the 1999 edition of the Signal Book the Diamond Board has disappeared, now a mechanical signal is never an order, just a permission.
DR Kreisscheibe  [obsolete]
Kreisscheibe ("Circle Board"): A Ra 12 or Gsp 1 (mechanical Sh 1) is a proceed order. Rule abandoned as of 2006 edition of the Signal Book.

On DR lines instead of the Sh 0/1 colour light signal you will often see a box like the one below:

Ra 11/Ra 12-Zwergsignal  This is a device combining a Ra 11 Waiting board a Ra 12 light signal and often a Kreisscheibe (Circle Board). The white box at the lower right contains the signal's number. The "W" is transparently illuminated. If the two white lights are off it means 'stop for shunting movements', see also Ra 11. If they are on, they are an order to proceed (without the Kreisscheibe it would be just a permission). camera.gif (1065 Byte)