SOB Node Concept

SOB and SBB trains are run on the same track between Wattwil and Lichtensteig stations. This means that SOB and SBB are jointly responsible for operating the traction power supply. A traction power supply concept exists between SBB and SOB for the above-mentioned section of line, the aim of which is to keep system availability as high as possible. Increased system availability helps to prevent system failures (blackouts) such as those that occurred in 2005.

Project key figures

Project Area

Catenary Systems AT/CH/SI

Project Start


Project End



SOB AG, Herisau


Werner Schwendimann

Managing Director