The Year of RSRG tunnel expertise

The Rhomberg Sersa Rail Group has more skills, know-how, expertise and experience in equipping and renovating railroad tunnels than almost any other company in Europe and worldwide. The service catalog and reference list of the Austrian-Swiss full-service provider of railroad technology in this field are correspondingly full. Reason enough for us to declare the 2025/26 financial year the “Year of RSRG tunnel expertise”.   

Immerse yourself in the fascinating world of tunnel construction with us in the coming months and let us convince you of our services and references.

Without railway tunnels, the Rhomberg Sersa Rail Group might not exist in its current form at all: During the outfitting of the Lötschberg Tunnel starting in 2002, Rhomberg Bahntechnik and Sersa AG worked together for the first time. And they did so with such excellence, trust, and mutual respect that it quickly led to more. Especially since the company representatives, Koni Schnyder (Sersa) and Hubert Rhomberg (Rhomberg Bahntechnik), also personally saw eye to eye.  

To kick off our special feature, the two look back on how it all began: 

To meet the comprehensive requirements of constructing new railway tunnels or rehabilitating existing ones, extensive know-how, years of experience – and the right tools – are essential! The Rhomberg Sersa Rail Group possesses all of these like hardly any other railway technology company in Europe or worldwide! Don’t believe it? Here’s the proof: 

• Tunnel vault renovation  
• Tunnel vault replacement  
• Tunnel vault reinforcement  
• Tunnel vault-drainage  
• Light expansion  
• Bed Lowering  
• Renewing tunnel drainage systems  
• Renewal cabling  
• Track renewal  
• Track replacement, installation slab track  
• Installing safety lighting  
• Installing LED-handrails  

• Rail Power Supply  
• Catenary  
• Electrical infrastructure  
• Electromechanical systems  
• Control, safety and communication systems  
• Signalling outdoor and cable systems  

• Track Civil Engineering  
• Cable Foundation Engineering  
• Slab Track Construcion and Ballast Superstructure  

• ZOKA  
  • Access Systems  
  • Positioning Systems / Person Identification  
  • Communication Systems / Radio Technology  
  • Network Technology  
  • Construction Site Alarm Systems  
  • Construction Site Video Surveillance  
  • Construction Site Monitoring  
• System Control  
• Construction Site Lighting  
• Power Supply  

(for both the construction process and the completed project)) 

• BIM as-built model  
• Calibrating measuring track  
• Construction process and logistics simulations  
• Customized developments for your construction site management  
• Data preparation for 3D machine control and construction surveying  
• Geodata Services  
• Information an project management system  
• Inventory  
• Reporting and project monitoring  
• Static and kinematic laser scanning  
• Transparent construction site with Q-tainer  
• Virtual walk-through  
• Visualisation  

Introduction: To manage the anticipated influx of visitors to the 2001 Alpine Ski World Championships in St. Anton am Arlberg, the Arlberg railway line was upgraded in advance between St. Jakob and St. Anton, and the St. Anton railway station was relocated. The experts of what is now the Rhomberg Sersa Rail Group played a key role in all the necessary tunnel works – from the construction of the Wolfsgruben and Blisadona tunnels to the rehabilitation of the Arlberg Tunnel itself!  

Repdigit: Austria has a total of 444 railway tunnels. Switzerland has 696, and Germany even 1,079.