Ultra-high-speed ground transportation

Challenge Seattle | Gridlock 2050: A Call to Action

Transportation

May 2026

Gridlock 2050: A Call to Action

“This report lays out a bold but achievable vision: an integrated and financially sustainable statewide transportation system that connects people, communities, and economic opportunity across all modes…”

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October 2025

Cascadia’s AI Moment?: Confronting Today’s Challenges to Become Tomorrow’s Global Leader

“The report outlines how Cascadia can strengthen its fundamentals while seizing a once-in-a-generation opportunity to lead in the defining technology of our time—artificial intelligence…”

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Transportation

June 2023

Keeping It on the Tracks: High-Speed Rail Success and Lessons Learned

This study provides information useful to transportation agencies, potential partners, and decision makers who seek to develop an ultra-high-speed line to connect Cascadia…

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Cascadia Innovation Corridor

September 2020

CASCADIA VISION 2050: How the Cascadia Innovation Corridor can serve as a global model for sustainable growth

This report provides a path forward that leverages high-speed transit to connect our existing urban centers to expanded hub cities with good jobs, affordable housing, and world-class culture…

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Transportation

May 2017

Challenge Seattle 2017 Annual Report on Transportation

We made a commitment to publish an Annual Report to track the region’s progress on achieving the vision—a user-focused transportation system that is safe, reliable, equitable, and environmentally sustainable…

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Ultra-high-speed ground transportation

Gridlock 2050: A Call to Action

Cascadia’s AI Moment?: Confronting Today’s Challenges to Become Tomorrow’s Global Leader

Keeping It on the Tracks: High-Speed Rail Success and Lessons Learned

CASCADIA VISION 2050: How the Cascadia Innovation Corridor can serve as a global model for sustainable growth

Challenge Seattle 2017 Annual Report on Transportation

Latest Reports

Gridlock 2050: A Call to Action

Challenge Seattle 2025 Annual Report

Cascadia’s AI Moment?: Confronting Today’s Challenges to Become Tomorrow’s Global Leader