Tunnel & Traffic Solutions

Technical infrastructure solutions for your safety

Picture of an empty three-lane tunnel © STRABAG Infrastructure & Safety Solutions GmbH

Operational and safety technology in road traffic by SISS

To ensure and continuously improve road safety, we develop innovative, intelligent and comprehensive solutions in the field of technical infrastructure.

These range from traffic and incident monitoring to systems for recording, controlling and managing individual traffic through to complete operating and safety technology for road and rail tunnels. In doing so, we integrate all systems available on the market into one optimized overall solution – tailored specifically to meet our customers’ requirements.

As a general contractor, we take care of the planning, delivery, installation and commissioning of your traffic infrastructure project and subsequently also provide maintenance and servicing. In this way, we ensure your project is built on a solid foundation right from the start and guarantee its long-term functionality.

Our services in tunnel & traffic solutions

Since our foundation, we have equipped more than 307 km of tunnel routes with electromechanical systems and implemented telematic infrastructure across approximately 1,140 km of high-level road networks (as of October 1, 2025).
Our service and maintenance activities during the operation of our systems complete our portfolio.

Increased road safety at home and abroad

The tunnels on Austria’s motorways and expressways are among the safest in Europe. We are proud to have contributed significantly to improving road safety for over two decades – not only in Austria, but also internationally, especially in Germany, as well as in Hungary, Sweden and Ireland.

  • Each project presents an exciting new challenge for us: equipping newly constructed or modernized roads and tunnels with our electromechanical systems to deliver the final technical  touches – and in doing so, making a significant contribution to improving traffic safety.

    Stefan Volgger
    Technical Business Unit Manager - Tunnel and Traffic Solutions

Get in touch with us! We will be happy to advise you personally.

STRABAG Infrastructure & Safety Solutions GmbH
Breitwies 32
5303 Thalgau