The LAX/Metro Transit Center, scheduled to open in early 2025, will connect the Los Angeles International Airport (LAX) to the Los Angeles Metropolitan Transportation Authority (Metro) regional rail and bus network. This multimodal transit hub includes a light rail station, consolidates bus transit services in the LAX area, provides pedestrian and bicycle amenities, and allows seamless transfers to LAX via the new Automated People Mover (APM). The design team faced the challenge of creating a world class facility for Metro that would serve as the face of Los Angeles for arriving LAX passengers and function as “Union Station West”.
To resolve the tension that arises from obligations to satisfy building code and infrastructure seismic approaches simultaneously, the team implemented a peer-reviewed, performance-based seismic design approach that would meet Metro’s system wide performance expectations and the building code. Developing an alternate design approach using nonprescriptive solutions allowed for tall custom exposed steel columns, trusses, and beams to provide the structure’s lateral resistance. The structure has been designed with performance objectives for both frequent smaller earthquakes and the maximum considered earthquake, ensuring minimal downtime after a seismic event. This is crucial as the station will be a vital connection between LAX and Metro’s light rail and bus systems.
Arup’s lead structural engineer and project manager during the design phase will present the project’s unique challenges and performance-based approach including nonlinear design of Special Steel Truss Moment Frames and Special Steel Cantilever Columns using ASCE 41.
Performance-Based Design of the LAX/Metro Transit Center
Significant Projects
