Signal out of use (Signal außer Betrieb) § 13 (26)
Marks main, distant or protection signals that are out of use (here shown with a main signal). If there are more signals on one mast all signal which are not marked remain valid. If however the invaladition signal is attached to the mast, all signals on the mast are invalid.

Signal reference (Signalhinweis) § 36 (6)
The signal reference is located at the position where the signal should be (normally on the right hand side) and points into the direction where it actually stands (normally to the left).
Note, that there actually are situations where signal references showing to the right are necessary!

Arrow (Richtungspfeil) § 36 (8)

1. If it is not claer which track a signal refers to, it is supplemented by this arrow which points to the belonging track.
2. if there is a switch between an announcment signal and the starting signal (temporary speed restriction) or between an announcment board and the speed board (speed boards) the arrow shows for which branch the restriction is intended for.

Stop snow-ploughing (Räumarbeit einstellen) § 36 (46)
Mainly used for areas where there should be no snow by the side of the track (e.g. on level crossings or bridges crossing roads).

Raise middle snow-plough (Mittelräumer heben) § 36 (47)
This signal protects track contacts, axle counters and so on.

Start snow-ploughing (Räumarbeit aufnehmen) § 36 (49)

Suppression of emergency brakes (NBÜ-Bereich) § 36 (50)

Sections where the engine driver shall suppress emergency brakes (to avoid stops in tunnels) have the kilometre boards marked with orange stripes.

Signal phone (Signalfernsprecher)
Marks the position of a signal phone (box). Often phone boxes are labeled »Signalfernsprecher«.

Location of next signal phone
The arrows can be found on catenary masts or kilometre posts.

kilometre post

kilometre board
These boards are typically mounted on catenary masts.

orientation board (Orientierungstafel)
This orienatation board shows three items:

• The triangle at the top shows the normal direction of running (Regelfahrrichtung) on the belonging track.
• The white number is the number of the railway line (all ÖBB lines are numbered, e.g. line number 1 is the Westbahn).
• The black number indicates the track number (»Gl. 1« = Gleis 1 = track 1).

These boards were introduced in 2000. Beginning from the 1990s additional tracks and bypasses were laid on the Westbahn thus making it sometimes difficult for the driver to determine whether his train is running on the main line or on a bypass, especially were both run parallel.

Start of a new LZB loop
Shows where one LZB loop ends and another one starts. At such points it is possible to change from non-LZB to LZB operation.

Start of depot area (Beginn des Zugförderungsbereichs)
Shows the border in responsibility for shunting movements between station and depot areas.

Reminder board for halting passenger trains
Shows where halting passenger trains of a certain length (here 55, 140 and 150 m respectively) should stop. The shape of this sign is not standardized.

Labelling of entry signals (ES), exit signals (AS) and intermediate signals (ZS). Intermediate signals are addionally marked with the official abbreviation.

Exit and intermediate signal
Depending on the route this signal serves either as exit signal (route to the left to St. Pölten Alpenbahnhof) or intermediate signal.

Block signals belonging to an automatic block post (Selbstblockstelle - SBL), cross-over (Überleitstelle - ÜST) or junction (Abzweigung - Abzw).