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A panoramic view shows a red train pulling several cargo wagons behind it. In the foreground is a slope with vines. Behind the train is a small town. The Rhine can be seen behind the town, surrounded by several small mountains.
Infrastructure project

Digital interlocking (DSTW: Digitales Stellwerk) Koblenz-Trier 

The Koblenz-Trier digital interlocking project is a pre-series project of the Digital Control and Safety Technology (DLST) for the modernization of the railroad infrastructure in Rhineland-Palatinate. It improves the control of rail traffic on an important route between Koblenz and Trier. 

Route data

Route from Koblenz
Route to Trier
Route lenght approx. 69 km
Route number(s) 3010,3112

Planned measures

Digital interlocking(s) replacement of 10 old interlockings by a DSTW
Scope of equipment
  • 270 Signals
  • 83 Switches
  • 11 Level crossings
  • Design integrated operating station (DiB)
  • Fibre optic (FO) cabling in the track field
Planned speed up to 120 km/h

Technology fields

Koblenz-Trier digital interlocking 

 

The Koblenz-Trier digital interlocking (DSTW) in Rhineland-Palatinate is being built along the Moselle line between Ediger-Eller and Ehrang. As DB InfraGo AG's first DSTW in the central region, it is one of three planned pre-series projects for digital control and safety technology (DLST). Digital interlocking components and standard interfaces are being implemented as part of this project. 

The line between Koblenz and Trier (3010 Moselle line, including the branch to Traben-Trarbach (3112)) will be equipped with DLST over a total length of around 69 kilometers. This line is of great importance for both regional and freight traffic and is also used by special trains for tourists during wine festivals in the region. The line runs along the Moselle and passes numerous vineyards as well as several winegrowers' crossings, which are a special feature due to their simple turnstiles and narrow crossings. 

Track concentrators (GFK) and a technical site are being built along the route. The project will also include the signaling, the laying of cables and the connection of the field elements to the DSTW. The connection of level crossings to the DSTW technology is also being implemented as part of this pre-series project. Furthermore, a switch removal including adaptation of the overhead line is planned at Wittlich station. 

 

 

Implementation 

 

The project will be executed in several consecutive construction phases. In the first construction phase, the necessary cable ducts, track crossings and signal foundations will be created. This will be followed by the laying of new cables, the necessary structural engineering work and the renewal of the electrical switch heaters. 

A train is travelling over an old iron bridge. Which is located over a river and a mountain with a forest can be seen in the background. The trees no longer have any leaves. There is also a small fitter and a vineyard on the mountain.
A yellow excavator is positioned on the tracks and is working on the track in front of it. Two people in high-visibility waistcoats are working on the ground, while a third person in a high-visibility waistcoat oversees the process.
A small excavator in the foreground and a larger one in the background are working on railway tracks. There are mountains and green trees in the background.

As part of the pre-series projects (VSP), the new digital interlocking (DSTW) with modular interchangeable components is to be tested and prepared for the subsequent series projects. 

 

Benefit: 

- Qualified testing of all processes, subsystems and also of the overall system of digital signaling technology (DLST) 

- A secure basis for the realisation of series projects 

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