otimon

Developing and simulating timetables

The timetable serves both as a promise to customers and as the foundation for operations. Only when travel times, connections and operational processes are reliably planned can the service be delivered consistently under real-world conditions – and the promise to customers be fulfilled.

Time-distance diagram of a timetable with crossing train paths
Time-distance diagram: the basis of every timetable analysis.
Timetable view in the TRENO planning software
Timetable construction in TRENO.

Example: managing crossing conflicts

We focus on “meets instead of crossings” in order to avoid crossing conflicts.

Schematic comparison between a crossing and a meet of two trains
Meets instead of crossings.

Example: accelerated freight services Basel – Chiasso

Time-distance diagram of freight traffic on the Gotthard axis between Basel and Chiasso
Freight traffic on the Gotthard axis.

Example: simulation

We go beyond planning alone: we analyse how individual infrastructure elements work – from switches and platforms to bottlenecks – while also taking into account the specific characteristics of the rolling stock in use. On this detailed basis we develop optimal timetables for the entire network, aligned with operational realities and customer expectations.

But planning alone is not enough. To assess the stability of our timetables objectively, we rely on stochastic simulations. These allow us to model irregularities, disruptions or delays realistically and to understand their impact on the overall system.

This data-driven, simulation-based approach enables us to plan robust timetables, identify potential weaknesses early and resolve them before they cause problems in daily operations. The result: a resilient timetable that works not only on paper, but in practice.

Stable. Realistic. Resilient.

Simulation result in Trenissimo, view 1 Simulation result in Trenissimo, view 2 Simulation result in Trenissimo, view 3