Fahrtstrecken

Fahrtstrecken are defined portions of a railway line that describe the route a train travels between two specified points during a single movement. In timetable practice they correspond to the legs of a journey, separating a route into manageable segments for planning and operations.

Definition and scope

A Fahrtstrecke runs from a defined starting point, such as a station, signal box, or block boundary, to an end point further along the line. The physical length is typically expressed in kilometers from a fixed origin, often referred to as Streckenkilometer. Fahrtstrecken may include simple single-track sections as well as more complex subsections that lie between control points.

Usage and purpose

Fahrtstrecken are used to formulate timetables, determine running times, and model energy consumption and performance. By assigning speed restrictions, gradients, curvature, and other operational parameters to each Fahrtstrecke, planners can estimate travel times, braking distances, and braking points. They also serve as a data unit in railway infrastructure registers and in crew and train planning.

Relation to other terms

In railway terminology, Fahrtstrecken are related to, but distinct from, terms such as Fahrweg (the path allocated for a movement, including the rolling stock, signalling, and permissions) and Streckenabschnitt (a general section of line). While Fahrtstrecken focus on the specific legs between control points for a given movement, the other terms describe broader or different aspects of route usage and infrastructure.

Context and usage

The concept is widely used in German-speaking railways, including operations, timetable publication, and technical documentation. It provides a standardized way to break down a route into analyzable units, facilitating precise planning and execution of train services.