Some fourty passenger and freight undertakings use the SBB, BLS and SOB networks. The train path allocation process coordinates their timetable aspirations. The total of all the paths allocated forms the timetable. It includes pathing details for all the trains including routing, days of running and journey times. A good timetable must satisfy three objectives:
- Meet the needs of the market: The individual paths must meet the needs of undertakings as closely as possible.
- Stability: The timetable must support punctual running. It must allow disruption to be contained within a small area and short duration.
- Performance: The timetable must allow as many trains as possible to run over the long term whilst allowing for stability and track maintenance.
These objectives can only be realised in an iterative process between infrastructure managers, applicants and trasse.ch. The process begins in the planning phase with feasibility studies for potential new services. The various timetable aspirations are coordinated with each other in the train path allocation process. trasse.ch manages this process and thus ensures that all the undertakings are treated equally.