Retrofit and refurbishment

We analyse your ventilation system and provides a new ventilation design for safe and economic operation considering the current guidelines and requirements. For the refurbishment or optimisation of an existing ventilation system, HBI provides knowledge of specialists in various disciplines such as tunnel construction, control system, simulation, fire protection, mechanical equipment etc. We provide the adequate approach meeting the requirements of your tunnel project.

Tunnel de la Vue-des-Alpes

Tunnel Rheinufer Düsseldorf

Petuel Tunnel Munich

Tunnel Isla Bella

Tunnel Arisdorf

Nordtangente Basel

Elbtunnel Hamburg

Loppertunnel

Tunnels Kirchenwald and Lopper
Tunnel ventilation, ventilation of crossways and operating centres

M5East Tunnel Sydney

Tunnel Heslach

Kiesberg tunnel Wuppertal

Bismarckring Tunnel Ulm

Tunnels Piottino

Tunnel Agnesburg, Aalen-Westhausen

Tunnel Viamala

UPlaNS Colombier – Cornaux

Seelisbergtunnel

Tunnel Albstadt-Laufen

Zurich Tonhalle

Engelbergbasetunnel

HBI Haerter Consulting Engineers conduct detailed analysis of aerodynamic coefficients of a tunnel, the ventilation system and the sensing elements. This is the foundation of the control and monitoring concept. The control usually includes following conditions:
Normal operation, for example unidirectional traffic, special case, for example oncoming traffic, event of fire and evacuation, event of fire and firefighting.

Doha Metro

Skymetro Zurich airport

Brussels Airport - Diabolo Project

Engelberg railway tunnel

Metro Panama Line 1

Pump storage station Linth-Limmern

Lusail Light Rail Transit

Engelbergbasetunnel

Heslach tunnel

Tunnel de la Vue-des-Alpes

Cross City Tunnel, Sydney

Tunnel Giswil

Petuel Tunnel Munich

Tunnel Isla Bella

Tunnel Arisdorf

Elbtunnel Hamburg

Tunnel Branisko

Tunnel Leissigen

Loppertunnel

Tunnels Kirchenwald and Lopper
Tunnel ventilation, ventilation of crossways and operating centres

Tunnel Richard-Strauss Munich

Flüelen tunnel

Balmenrain and Uznaberg tunnels

Gmünder Einhorn-Tunnel

Tunnels Piottino

Kö-Bogen Tunnel, Düsseldorf

Tunnel Agnesburg, Aalen-Westhausen

Tunnel Wimpasing, bypass Ampfing

Scheibengipfel tunnel

Bypass Meran

Ovit Tunnel

Tunnel Viamala

Western bypass Freising

New construction enclosure Schwamendingen

Tunnel Kriegsstrasse, Karlsruhe

Tunnel Kriegsstrasse, Karlsruhe

Light rail tunnel, Karlsruhe

Luise-Kiesselbach-Tunnel/Heckenstallertunnel, Munich

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