Jane Pereverzoff / Thornton Tomasetti; model: Daniel Segraves / Thornton Tomasetti.

Anaheim Regional Transportation Intermodal Center (ARTIC), Phase One



The Anaheim Regional Transportation Intermodal Center (ARTIC) in Anaheim, California is as beautiful as it is functional. A hub for rail, bus, auto and bike travel, ARTIC is also ready for high-speed trains and street cars, the region’s next-generation transportation systems. Thornton Tomasetti served as the Structural Engineer-of-Record for Phase I of the project and also provided façade consulting services during the competition and early architectural design phases.

The program includes a 68,000-square-foot terminal and the Metrolink / Amtrak concourse pedestrian bridge. The terminal houses a grand hall, ticketing and retail space beneath a soaring exposed steel structure enclosed with inflated ETFE cushions – the largest single installation structure enclosed with ETFE in the Western United States.

Thornton Tomasetti’s structural design employed long pieces of 14-inch-diameter curved, interlocking steel tubes to form the complex yet efficient structure’s diagrid shell to support the ETFE cushions and help accommodate bending and compression. This steel shell is clearly visible through the façade, creating a variety of impressive visual effects. The shell serves not only as a structural element but also as an architectural element and an iconic regional landmark.

The transit center was designed to achieve LEED Platinum certification by incorporating initiatives including energy and potable water consumption reduction, stormwater runoff, construction, operational waste, air emissions reduction, optimization of climate conditions and open space areas.

Station, train station, bus station, High Speed Rail, Intermodal, Transit Center, Subway, Metro, Intermodal Center, Rail, Commuter Rail, Intercity Rail
Read More

Related Projects

Façade Materials & Systems


Unsurpassed for transparency, tensegrity systems and cable-net façade structures can efficiently enclose long-span openings without the use of heavy, rigid trusses or frames. We use leading-edge software to design glass façades and roofs with minimal structure. Our extensive experience with form-finding for complex geometries, along with our practical knowledge of cable engineering and construction, places us at the forefront of this design trend.

Façade Materials & Systems

ETFE & Fabrics

The use of lightweight membrane structures can enhance design, budget and building performance – but only if their attributes are considered early in the design process. With the ability to span great distances, these systems are used in dynamic and sculptural forms and can be quickly modified to meet changing weather-related or programmatic needs by adjusting shading, thermal and aesthetic characteristics. Our façade engineering consultants are experts in the application of ETFE, fabric and tensioned membranes, from concept evaluation to integration of these lightweight systems into building skin designs.

Façade Materials & Systems

Glazing & Structural Glass

Glazing offers transparency that enhances a façade’s aesthetics and experience from both the interior and exterior. It provides light and a visual connection between the inside and outside. But designing with glass requires the deliberate balancing of light transmittance and the effects it has on energy performance and occupant comfort. Glazing design also requires careful consideration of material strength and safety. We provide a full range of design and engineering support for glazing and glass structures, from structural analyses to recommendations for aesthetics and energy performance. Our expertise in glazed-façade and structural-glass construction includes unitized aluminum frames, stick-built metal frames, steel cable supports, structural glass fin supports and glass stairs and balustrades.

Façade Materials & Systems


A variety of metals are used to wrap a building’s skin: aluminum, stainless steel, copper and zinc are notable examples. Each has its own special characteristics and can be used as rainscreen cladding, open screens, overhead enclosures or decorative elements with an array of possible shapes and configurations. We have used metals in a variety or project types, ranging from new façades to innovative re-cladding of existing structures. Our understanding of each material’s physical properties helps us provide designers with unique solutions that fulfill their design visions.

Specialized Structural Engineering Expertise

Computational Analysis

While the range of shapes and forms that can be designed with modern modeling tools is almost limitless, geometric discipline is still essential for budget control. When forms are still in flux, the design team can use our proprietary tools to interactively study multiple geometric options and establish optimized shapes for structural frames and building surfaces, along with related systems.

Parametric modeling applies parameters such as materials, dimensions or performance criteria to define elements or element categories within a model. Once entered, they can be altered, individually or in combination, to explore and easily incorporate design changes. These 3D models contain intelligent information and can serve as deliverables, or they can be used to generate 2D drawings. Parametric models improve documentation speed and quality, enhance visualization, quickly perform geometry-based analytical tasks and easily calculate material quantities.

Generative modeling uses scripts – instead of direct input – to generate elements, providing even greater flexibility in iterating and testing many options. It allows architects, engineers and other project stakeholders to work together to quickly evaluate any number of concepts and variations.