Why do US rail projects cost 10x what they cost in Europe or Japan?
The Second Avenue Subway extension in New York cost roughly $3.5B per kilometer. Madrid's metro expansion in the 2010s ran about €60-80M per kilometer. Same tunneling technology, broadly similar urban geology. The gap is that large and it's well-documented.
The usual explanations: contractor markups on public works, NEPA review timelines, Davis-Bacon prevailing wage rules, transit agency overhead, station design standards that add cost without adding riders, liability requirements baked into every spec.
All of those are real. But Bent Flyvbjerg's comparative infrastructure research points at something more structural: the US has built so little continuous rail infrastructure over the past 50 years that it lost institutional knowledge, competitive contractor markets, and the ability to write contracts that don't just hand cost-overrun risk back to the public. Countries that build continuously — Spain, Japan, South Korea — get cheaper over time because they retain the supply chain and expertise. The US basically starts from scratch every decade.
The depressing implication: the only exit from high costs is to build your way out, and the current cost structure makes that politically impossible.
Is there a realistic intervention here, or is functional urban rail just off the table for most American cities?
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