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Basel Railway Junction

Basel SBB Railway Under­ground Station 

As part of the planning of the “Herzstück” project for the Basel Regional S-Bahn, different railway line variants were evaluated. At the Basel railway station, a new underground station constituted the core of the “Herzstück” for two underground variants. As part of the feasibility study for this underground station, Gruner AG’s Infrastructure Division evaluated several variants for the vertical and horizontal position. In an additional step, the railway station layout (platform layout, entrances and exits) was developed and the structural feasibility (construction methods, construction process) was verified.


Based on a defined load case, extensive pedestrian flow simulations were carried out using VisWalk (PTV).

The services included:

  • Variant analysis
  • Feasibility verifications
  • Pedestrian flow simulations
  • Rough cost estimate