Consulting, expert opinion and research

We provide professional consultancy services in all relevant aspects on tunnel ventilation, aerodynamic, climate, safety and risk analysis, tunnel equipment, and pollution dispersion. We prepare expert opinions in these areas on behalf of constructors and public authorities. We draw on our long-term experience of more than 1000 international projects and the continuous engagement in research and development.

Transrapid Munich

High-speed rail tunnels in Sweden

Cross City Tunnel, Sydney

Tunnel Giswil

Munich - Mittlerer Ring south-west

Petuel Tunnel Munich

Bypass-Tunnel Starnberg

Loppertunnel

Frauenfeld – F21 Bypass

Gotschnatunnel, bypass Klosters

West bypass Freising

Balmenrain and Uznaberg tunnels

Kö-Bogen Tunnel, Düsseldorf

Tunnel Agnesburg, Aalen-Westhausen

Tunnel Wimpasing, bypass Ampfing

Bypass Meran

Arlberg Street Tunnel

Gallery of Dormagen-Horrem

Gmünder Einhorn-Tunnel

Western bypass Freising

Seelisbergtunnel

Luise-Kiesselbach-Tunnel/Heckenstallertunnel, Munich

Zurich Tonhalle

Research project REHSTRAIN

EU research project RICAS2020

M4 East, WestConnex Stage 1, Sydney

M8 (New M5), WestConnex Stage 2, Sydney

New or adapted norms and guidelines lead to changing requirements for tunnel constructions. Changes of the usage requirements can lead to new performance requirements. With the check of the functional and safety requirements of existing tunnels by HBI, the safety level is determined and the need for action and the measures to be realized are demonstrated.

Gotthard base tunnel

Young Dong railway tunnel

Tunnel Groene Hart, Dordtsche Kil and Rotterdam Noordrand

Guadarrama tunnel

Bonn city railway

Stuttgart city railway: U12 Hallschlag-Münster

Augsburg mobility hub

Tunnel Rheinufer Düsseldorf

City Tunnel Freiburg

Tunnel Böhämmer

Nordtangente Basel

Kiesberg tunnel Wuppertal

Bismarckring Tunnel Ulm

Sharq Crossing Doha

Arlberg Street Tunnel

Gallery of Dormagen-Horrem

Western bypass Freising

Frankenschnellweg

EU research project RICAS2020

Lötschberg base tunnel

HBI has the high level of competence and broad experience required to serve as an independent inspection entity. The service that includes assessment of the safety and scrutiny of the safety documentation is targeted to assist in particular the administrative authority. The EU-Directive 2004/54/EC dated 29 April 2004 on minimum safety requirements for tunnels in the trans-European road network prescribes that a safety documentation has to exits. Moreover, the organization shall persist of various entities with clearly defined roles and responsibilities: administrative authority, tunnel manager, inspections entity and safety officer.

Gmünder Einhorn-Tunnel