Entry signal

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Ks signal as the entrance signal for Limburg Süd station . Signal aspect: Drive at 100 km / h (Ks 1 with Zs 3) and expect to drive, as marked by the yellow mast sign as the main signal with distant signal function.
Entry signal for Friedrichsdorf station . Signal aspect: Slow travel at 60 km / h as well as expect a stop and expect a drive at 30 km / h (Hp 2 with Zs 3 and Vr 0 with Zs 3v)
The contradiction expecting a stop at 30 km / h arises from a standalone speed indicator
Form entry signal of the Bf Fridingen (2018)
(location)

The entry signal (abbreviation: Esig ) is a railway signal . It is one of the main signals and marks the boundary between the station and the open route (“station boundary ”). If it is not available, the station boundary is on the trapezoidal board (Ne 1) or, if there is no trapezoidal board, at the tip of the entry switch. With the driving position of the entry signal, the dispatcher gives his approval for a train to enter the station.

As usual with main signals, it is at a precisely defined distance from the first danger point to which the arriving train is exposed if it does not stop before the entry signal. This distance is called the danger point distance and is designed for the speed permitted in front of the signal. In contrast to the slip path behind intermediate and exit signals, it is always kept free. As a rule, this is the first switch in the entry path, known as the entry switch . If it has to be driven over more often when maneuvering, the entry signal is shifted further towards the free route, which also shifts the relevant danger point accordingly. In this case, the danger point is marked with a shunting stop sign with the meaning "Stop for shunting trips" (signal Ra 10).

The station boundary or the danger point is relevant both for the incoming train and for maneuvering within the station. When maneuvering in the direction of the entry signal, the drive-in switch or the shunting stop board may only be driven over in exceptional cases with a written order from the dispatcher (which contains a precise time indication of when the maneuvering beyond the danger point must be completed). In this case, no train may be allowed into the block section before the entry signal during shunting .

As a rule, in Germany the entrances to train stations on main lines must always be secured with entry signals; however, they can be dispensed with on branch lines where the entry speed does not exceed 50 km / h .

literature

  • Ferdinand Hein: Operate Sp Dr 60 signal boxes - in regular operation . 3. Edition. Eisenbahn-Fachverlag, Heidelberg / Mainz 2000.
  • Wolfgang Fenner, Peter Naumann, Jochen Trinckauf: Railway safety technology: controlling, securing and monitoring of routes and speeds in rail traffic . 2nd Edition. Publicis Publishing, Erlangen 2004.
  • Anita Hausmann, Dirk H. Enders: Basics of rail operations . 2nd Edition. Bahn Fachverlag, Heidelberg / Mainz 2007.
  • Jörn Pachl: System technology for rail transport . 7th edition. Springer Vieweg, Wiesbaden 2013.
  • Lothar Fendrich, Wolfgang Fengler: Railway Infrastructure Manual . 2nd Edition. Springer Vieweg, Berlin / Heidelberg 2013.

Web links

Wiktionary: Entrance signal  - explanations of meanings, word origins, synonyms, translations

Individual evidence

  1. ↑ § 14 Paragraph 2 EBO