BUS Ostschweiz AG: Efficient route patterns and optimal duty schedules

Every year more than eight million passengers travel with BUS Ostschweiz AG (BOS), on a route network spanning over 440 kilometres between Lake Constance and Lake Walen, and in the Wil region. The company has been using IVU.suite products since 1999 to efficiently deploy its 900 vehicles and 200 drivers. In order to take complete advantage of the system’s potential, in 2017 BOS chose to introduce IVU.duty’s schedule optimisation as well.

For BOS it was important to further simplify the planning process and reduce the number of manual procedural steps. Planners should be able to react more swiftly to modifications and employee requests, in order to make duty schedules not only more efficient, but also fairer than before. With the planning products IVU.timetable, IVU.run, IVU.duty and IVU.crew, BOS already had a standardised planning and dispatch system for vehicles and personnel. This meant that the optimisation, as part of the duty scheduling product IVU.crew, could be integrated into the existing installation at BOS with minimum time and effort.

Due to numerous automations, the duty schedule optimisation significantly simplifies the planning processes. The basis for this is a comprehensive rule system enabling BOS to flexibly input the various occupancy guidelines. With this, it is easily possible to calculate multiple duty schedule variations and scenarios for the offer planning – planners then only have to adjust the desired parameters in the graphical rule editor. 

As compared to manual planning, the schedules created with the help of the duty schedule optimisation were several per cent more efficient. Due to the automatic creation of shifts, the company can plan much more flexibly and make adjustments much faster – a conclusive result for BOS.


  • Simplify planning processes
  • Take employee requests into account more easily
  • Better planning of route variations and offers

Specific Features

  • First introduction as pilot project with subsequent productive operation