Sustainability of tunnel operation: New approaches – a PIARC briefing note and collection of case studies

René LIST¹, PIARC Technical Committee - Working Group²

1: ASFINAG, Austria; 2: PIARC - World Road Association

The Koralmtunnel as a real-world laboratory: Research work and findings during the construction of the Koralmtunnel

Helmut STEINER¹, Michael BACHER², Daniel FRUHWIRT²

1: Austrian Federal Railways, Austria; 2: Graz University of Technology, Institute of Thermodynamics and Sustainable Propulsion Systems, Austria

ASFINAG in case of a blackout – overview and measures

Günter RATTEI, Alice MAHR-SAVERSCHEL

ASFINAG SG, Austria

Safe tunnels for smart vehicles: Challenges and opportunities of automated driving in road tunnels

Regina SCHMIDT¹, Harald KAMMERER¹, Georg MAYER², Markus Hofer³, Oliver Zendel³

1: ILF Consulting Engineers Austria GmbH, Austria; 2: BUNG Ingenieure AG, Germany; 3: AIT Austrian Institute of Technology GmbH, Austria

Conformity bias influence to the walking speed in a smoke filled tunnel experiment

Miho SEIKE¹, Wenhao LI², Takao FUTAGAMI³

1: University of Tsukuba, Japan; 2: Liaodong University, China; 3: Shinshu University, Japan

Impact of group effects on the reaction and escape behaviour of users in road tunnels - results of realistic large group experiments

Frank LEISMANN¹, Christian THIENERT¹, Markus JENKI², Robert WENIGHOFER³, Anne LEHAN⁴, David STÜHLER², David CZUDNOCHOWSKI², Stefan KAUFMANN⁴, Robert GALLER³

1: STUVA e.V., Cologne, Germany; 2: CSS – Centre for Security and Society, Freiburg, Germany; 3: Technical University of Leoben, Leoben, Austria; 4: BASt, Federal Highway and Transport Research Institute, Germany

Digital Twins for road tunnels – expectations meet reality

Goetz VOLLMANN¹, Zuzan AZAD¹, Lisa VON ROESSING², Benedikt FALTIN², Anne LEHAN³, Marius NONO TAMO³, Karl HANKE⁴, Annika JODEHL⁴

1: Ruhr University Bochum, Institute for Tunnelling and Construction Management, Germany; 2: Ruhr University Bochum, Institute of Computing in Engineering, Germany; 3: BASt, Federal Highway and Transport Research Institute, Germany; 4: BUNG-Group, Germany

R&D project tunnelsensorfusion

Dietmar HARBAUER

ASFINAG Alpenstraßen GmbH, Austria

Development of a systematic approach for evaluation of the condition of the tunnel equipment

Anne LEHAN¹, Gerhard HUDECEK², Harald KAMMERER³, Frank HEIM⁴

1: BASt, Federal Highway and Transport Research Institute, Germany; 2: ASFINAG Maut Service GmbH, Austria; 3: ILF Consulting Engineers Austria GmbH, Austria; 4: Die Autobahn GmbH des Bundes, Germany

Methodology for the performance enhancement of longitudinal ventilation systems during transient stage of a fire

Miguel DEL MORAL, Alexander GRATCH, Davide D'EUSTACCHIO, Alvaro MENESES, Justo SUAREZ

Soler&Palau Ventilation Systems SLU, Spain

Performance improvement of a hybrid ventilation system via predictive control

Diego ANGELI¹, Paolo LEVONI², Pietro CINGI³, Giovanni Sebastiano BAROZZI⁴, Paolo VERRAZ⁵, Cedric PETITCOLIN⁵

1: DISMI - University of Modena and Reggio Emilia, Italy; 2: Mimesis s.r.l., Italy; 3: EN&TECH - University of Modena and Reggio Emilia, Italy; 4: DIEF - University of Modena and Reggio Emilia, Italy; 5: TMB-GEIE, Italy & France

Enhancements of tunnel ventilation system for road tunnels adopting aerodynamic control & monitoring strategies

Ka Wing Kelvin CHEUNG¹, Lung Leo CHAN¹, Anthony WAN², Hau Ming LEE²

1: Building Engineering Group, AECOM Asia Company Ltd., Hong Kong; 2: BYME Engineering (Hong Kong) Limited, Hong Kong

Ventilation control optimisation for short longitudinally ventilated road tunnels in case of temporary bidirectional traffic operation

Oliver HEGER, Gregor SCHMÖLZER

ILF Consulting Engineers Austria GmbH, Austria

External smoke movement and its impact on station design – Guidance for ventilation layout

Jolyon THOMPSON, Mark GILBEY

WSP UK Ltd, United Kingdom

Safety challenges of highway lids in the US

Petr POSPISIL¹, Colin SANTANGELO², Bernd HAGENAH¹

1: Tunnel Safety & Ventilation Consultant, United States of America; 2: HNTB Corporation, United States of America

The best that FEDRO has provided us with in recent years! Experience from over 50 operating concepts for Swiss road tunnels

Ralf WETZEL¹, Christian JÄGER²

1: ILF Beratende Ingenieure AG, Switzerland; 2: WSP Ingenieure AG, Switzerland

Thrust comparison of conventional jet fans and fans with shaped silencers in an Italian road tunnel based on In-Situ measurements

Fathi TARADA¹, Luca STANTERO², Pier BERTACCHE¹, Natalino DANIELE BOFFA³, Francesco BEZZI³, Natalino LUCATELLI⁴

1: Mosen Ltd, United Kingdom; 2: Risk Design Engineering, Italy; 3: ANAS SpA, Italy; 4: De Cardenas Fans & Service SRL, Italy

Experimental investigation of thermal runaway in lithium-ion batteries: Implications for tunnel safety and structural integrity

Davide PAPURELLO^1,2, Luca MUSSO^1,2, Carlo BARBETTA³, Romano BORCHIELLINI^1,2, Maciej SOBOTKA⁴, Daniel FRUHWIRT⁵

1: Department of Energy, Politecnico di Torino, IT; 2: Energy Center, Politecnico di Torino, Italy; 3: Systemair GmbH, Germany / Systemair Srl, Italy; 4: Wrocław University of Science and Technology, Faculty of Civil Engineering, Poland; 5: Graz University of Technology, Institute of Thermodynamics and Sustainable Propulsion Systems, Austria

Cultural differences in road tunnel fire safety

Conrad STACEY, Michael BEYER

Stacey Agnew Pty Ltd, Australia

Acceptance criteria for design of longitudinal ventilation systems in road tunnels: Theoretical framework

Matteo PACHERA, Ranjit CHAUDHARY, Stefaan VERNIEUWE, Jef VAN NEROM

Sweco, Belgium

State of the art and lines of development for the Artu risk analysis software

Rugiada SCOZZARI, Michele FRONTERRÈ

Cantene s.r.l, Italy

Heat transmission between ground and tunnel air for different configurations and uses

Juan Manuel SANZ SACRISTÁN

Sener Mobility SA, Spain

Enhancement of the dispersion of pollutants near a tunnel ending in a street canyon, a CFD case study

Gabriel REMION¹, Thierry KUBWIMANA¹, Bruno VIDAL¹, Marouane YAGHZAR¹, Antoine MOS¹, Romain BOISSAT², Edwige REVELAT², Alexis STEPANIAN²

1: CETU, France; 2: AtmoSud, France

Smoke recirculation at road-tunnel portals

Marco TOBLER, Marco BETTELINI, Raphaël DEFERT

Amberg Engineering, Switzerland

Application of low-tech and lean-tech concepts to road tunnels for greater energy efficiency

Tristan REGNIER, Florent GUIRAL, Olivier MARTINETTO

Egis, France

Effects of contributing to decarbonization by model-based predictive ventilation control (MPVC) on expressways

Hiroki UEDA¹, Atsushi ICHIKAWA², Minoru YUHARA³, Masaki HIRO¹, Yuichiro FUJITA¹, Wataru TAKAHASHI⁴, Alan VARDY⁵

1: Nippon Expressway Research Institute Company Limited, Japan; 2: East Nippon Expressway Company Limited, Japan; 3: AMEC Consultants Company Limited, Japan; 4: Central Nippon Highway Engineering Nagoya Company Limited, Japan; 5: University of Dundee, United Kingdom

Improving energy efficiency in road tunnels

Lorenz KIRCHEBNER¹, Alexander WIERER¹, Christof SISTENICH², Michael BACHER³, Marlene HINTERHOFER³, Thomas MARCHER⁴, Georg KAML⁴

1: crypta.sec conceptum GmbH, Austria; 2: BASt, Federal Highway and Transport Research Institute, Germany; 3: Graz University of Technology, Institute of Thermodynamics and Sustainable Propulsion Systems, Austria; 4: Graz University of Technology, Institute of Rock Mechanics and Tunnelling, Austria

On smoke detection systems in road tunnels - a quantitative comparison

Samuel GEHRIG¹, Simon FREY², Benjamin POLLINGER¹, Reto BUCHMANN³, Bernard CRAUSAZ⁴

1: AFRY Switzerland AG, Switzerland; 2: HBI Haerter, Switzerland; 3: buntech GmbH, Switzerland; 4: Federal Roads Office FEDRO, Switzerland

Optimization of the main fans and associated drives for the E4 Stockholm bypass

Rune BRANDT^1,2, Peter STEVELINK³

1: HBI Haerter, Switzerland; 2: Trafikverket, Sweden; 3: Zitron, Netherlands

Web-SCADA: A web-based supervisory control and data acquisition platform for road tunnel safety in Japan

Leon DICKEL¹, Jean ROUGE¹, Yen-Hung LAI¹, Mathis RUFFIEUX¹, Masahide NAKAMURA², Alan VARDY³

1: Sohatsu Systems Laboratory Inc., Japan; 2: Kobe University, Japan; 3: University of Dundee, United Kingdom

Towards accurate tunnel fire simulations: Grid sensitivity and les model comparison in fire dynamics simulator

Mahfuz SARWAR¹, K.A.M. MOINUDDIN²

1: Fire Rescue Victoria (FRV), Major Community Infrastructure Unit (MCIU), Australia; 2: Centre for Environmental Safety and Risk Engineering (CESARE), Victoria University, Australia

On the flow resistance of tunnel fires – validation by full-scale fire tests

Ingo RIESS¹, Rajdeep DEB², Alex WEBER²

1: Riess Ingenieur-GmbH, Switzerland; 2: OST Ostschweizer Fachhochschule, Switzerland

Effect of road tunnel fitout on smoke control

Michael BEYER, Conrad STACEY

Stacey Agnew Pty Ltd, Australia

Consequences from large EV fires in a tunnel - a DACH research activitiy

Daniel FRUHWIRT¹, Alexander KORES¹, Bastiaan LOTTMAN², Simon FREY³, Christoh SCHNEIDER⁴, Robert GALLER⁵, Robert WENIGHOFER⁵, Christian THIENERT⁶, Frank LEISMANN⁶

1: Graz University of Technology, Institute of Thermodynamics and Sustainable Propulsion Systems, Austria; 2: ILF Consulting Engineers Austria GmbH, Austria; 3: HBI Haerter AG, Switzerland; 4: WSP, Switzerland; 5: University ofLeoben, Austria; 6: Studiengesellschaft für Tunnel und Verkehrsanlagen – STUVA – e. V., Germany

Modeling airborne brake wear particle transport in subway systems: A line-scale framework

Rodrigo HERRERO, Carla SÁNCHEZ, Laura RODRIGUEZ

Metro de Madrid (MdM), Spain

From motion to understanding: How deep learning enhances automatic incident detection

Emmanuel MARCHAND, Maciej SEKULA, Christophe COLOMBEL

Citilog, France

Influence of the tunnel cross-section on tunnel aerodynamics

Verena LANGNER, Andreas HUBER, Johannes RODLER

Gruner GmbH Wien, Austria

Air speeds near services on tunnel walls

Mark GILBEY¹, Dami AJEWOLE¹, David SOPER², Mike JESSON², Ian STRUDWICK³

1: WSP UK Ltd, United Kingdom; 2: University of Birmingham, United Kingdom; 3: HS2 Ltd, United Kingdom

Train-induced aerodynamic loads acting on installations of Granitztal tunnel

Michael REITERER

REVOTEC, Austria