Transportation costs
Basics
Spirit’s Shutdown Exposes America’s Fragile Affordable Travel System
"Affordable travel is not a fallback. It is what makes broad mobility possible."
May 22, 2026
Op-Ed: What Cities Can Do as Micromobility Tariffs Loom
"Let’s treat micromobility like the essential service it is, so that we’re ready for whatever comes next."
April 24, 2025
