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BIM Architecture: BIG's Integrated Transportation Hub Featuring a Unique Leaf-Shaped Roof

BIG has recently unveiled the latest design for the Westerros Travel Center, a visionary project that integrates multiple modes of transportation within a single building. The centerpiece is a lightweight, undulating roof that seamlessly connects various functional areas, establishing a new landmark in the Swedish city of Westerros.

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

The architects have thoughtfully organized diverse transportation-related functions under this iconic roof. These include car terminals, travel services, bicycle garages, outdoor bike parking, taxi waiting zones, retail spaces, restaurants, offices, and areas for events and exhibitions.

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

The project is designed to cater to both fast-paced commuters and those who prefer a more leisurely visit, balancing efficiency with comfort.

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

“We use the lightweight element of ‘a roof’ to bring travelers together,
Creating a dialogue between the travel center and the surrounding urban fabric.
We invite, gather, and protect every commuter who passes through.
The streamline is the core of the Westerros Travel Center — it represents not only the flow of traffic and commuter paths but also a fast track for locals to travel between cities.”

— BIG Architecture Firm

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

The building’s raised roof corner marks the entrance to the travel center. Its zigzag roofline aligns with the surrounding column grid, freeing up internal space for flexible use.

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

Additional cuts in the roof structure allow natural light and ventilation to permeate the interior, creating a transparent and open environment that blurs the boundary between inside and outside.

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

A series of steps connects the travel center to the urban fabric around it, offering citizens a fresh and inviting space to meet and gather.

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

Separate pedestrian and bicycle lanes have been designed to ensure smooth transit for commuters moving between different transport modes.

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

“The Westerros Travel Center has created a continuous and unified urban landscape beneath a single roof, serving as a social infrastructure that bridges commuter flows and local life.
Our goal is to design a welcoming, warm, and transparent transportation hub that addresses socio-economic needs while redefining the future of urban infrastructure.”

— Bjarke Ingels

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

△ Design Process Diagram

The iconic roof of the travel center will incorporate solar energy systems, which are expected to cover 70% of the building’s energy needs.

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

△ Roof Structure Analysis Diagram

Additionally, the project features underfloor heating and cooling systems, as well as rainwater harvesting facilities, reflecting a commitment to contemporary sustainable design principles. Construction is slated to begin in 2022, with completion targeted for 2025.

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

△ Functional Zoning

Technical Drawings

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

BIM Architecture | Integrated Transportation Hub/BIG with One Leaf Roof

△ Design Process Diagram

Project Information

Project Area: 16,963 square meters

Client: Westerros Municipal Government

Project Collaboration: Tyrens (Structural and Geotechnical Engineering), Kragh & Berglund (Landscape Design), Rambøll (Project Management & Sustainable Design Coordination), Sweco Architects AB (Local Coordination Architects), VAP (Traffic Planner), Afry (Electrical), Brandprojektering AB (Fire Safety Consultant), Kadesjö (Ventilation Design Consultant), PQ Projektledning AB (Cable Management Consultant), Structor Riskbyrån AB (Risk Management), WSP (Cost Estimation)

Project Leaders: Bjarke Ingels, David Zahle

Project Management: Kamilla Heskje

Design Director: Marie Lancon

Design Team: Aileen Koh, Allen Dennis Shakir, Anders Bruntse, Anders Holden Deleuran, Dalma Ujvari, Federica Fogazzi, Geetika Bhutani, Ida Linnea Elvira Maria Lujak, Laura Wätte, Marius Tromholt-Richter, Yunus Alperen Basak

BIG Engineers: Indoom Climate; Jesper Kanstrup Petersen (BIG E), Natasha Lykke Lademann Østergaard (BIG E)

Competition Stage:

Design Director: Kamilla Heskje

Design Team: Oscar Abrahamsson, Nicolas Millot, Camila Luise de Andrade Stadler, Gwendoline Eveillard, Franck Fdida, Giedrius Mamavicius, Andre Enrico Cassettari Zanolla, Camila Luise de Andrade Stadler, Cristian Teodor Fratila, Geoffrey Eberle, Ioana Fartadi Scurtu, Ipek Akin, Johan Bergström, Laurine Louisette Marie Alard, Luca Pileri, Magnus Garvoll, Malgorzata Mutkowska, Margarida Jéronimo, Martino Hutz, Megan Fiona Cumming, Ola Sobczyk, Ovidiu Munteanu, Peter Mortensen, Rasam Aminzadeh, Rihards Dzelme, Shin Saeki, Sofia Fors Adolfsson, Tyrone James Cobcroft, Yu Xun Zhang

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