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BLS – overview with the construction site tool

Construction and event organization made easy: using the web app developed by Puzzle, BLS is now able to manage and maintain both construction sites and planned events in a central database.


The rail network of BLS spans 420 kilometres, runs through 57 tunnels and crosses over 726 bridges. To ensure operation, this infrastructure has to be expanded and updated on an ongoing basis. Planning and organising the numerous sites takes time and requires a lot of coordination effort, work which was previously done in manual steps and using Excel tables at BLS. Comparing back and forth between the various sites was always a mammoth task. The same applies to organizing events such as the Fasnacht, where staff must be informed accordingly and often additional resources need to be made available.


In order to simplify site management and centralise data storage, Puzzle has developed the construction site tool for BLS. Sites can be entered, managed and maintained by different departments in the web app. Thanks to a central database, the tedious task of comparing and adjusting numerous separate tables is eliminated. Data quality also improves with the verification of entered values. After successfully completing this first step, the Construction Site Tool was expanded with event organization. Now, recurring events such as BSC Young Boys home games and major events such as the Bernese Fasnacht, as well as one-time events such as the Swiss Wrestling and Alpine Festival, can be managed using the Construction Site Tool.


Since December 2023, event notifications from the construction site tool have been transmitted to the data hub of the SKI (System Tasks Customer Information) on behalf of the BAV (Federal Office of Transport). The SKI publishes the data for the entire public transport system in Switzerland. This process ensures that the data is seamlessly integrated into the SBB’s online timetable, making current information about construction site influences on railway traffic accessible to the public and visible in the timetable.


BLS AG was founded in 2006 and connects people, regions and places. As one of the largest transport companies in Switzerland, it operates an extensive network in regional passenger rail.
Your point of contact

Interested in the site tool? I’d be happy to tell you more.

Joel Baldinger
Co-Lead Mobility

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