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Alon Levy

@alon-levy · 17 positions · 0 changes of mind

Mathematician turned transport researcher, a fellow at NYU's Marron Institute and a lead of the Transit Costs Project, which compares what it costs to build rail in different countries. Writes Pedestrian Observations.

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  1. Beyond the scale of a neighborhood or maybe a college town, cars and mass transit are substitutes for each other.

    Why Building Metros is Necessary for the Green Transition Away from Carspedestrianobservations.com 1st of 3 in this piece

  2. Nor does polycentricity solve the problem. Indeed, ridership in polycentric regions is weaker than in monocentric ones.

    Why Building Metros is Necessary for the Green Transition Away from Carspedestrianobservations.com 2nd of 3 in this piece

  3. This, in turn, creates serious estimation problems for the diversion rate, which is why environmental benefit-cost analyses underrate the effect of urban rail construction.

    Why Building Metros is Necessary for the Green Transition Away from Carspedestrianobservations.com 3rd of 3 in this piece

  4. 15 months earlier
  5. In truth, the UK shares high costs with more decentralized countries, and Spain shares low ones with more centralized ones.

    Low Spanish Costs are not About Decentralizationpedestrianobservations.com 1st of 4 in this piece

    Europe

  6. So Portland managed to build one very small line for fairly reasonable costs, but they were not cutting edge; this is a common pattern to Western US cities, in that the first line has reasonable costs and then things explode, even while staying self-funded and self-directed.

    Low Spanish Costs are not About Decentralizationpedestrianobservations.com 2nd of 4 in this piece

  7. The truth is that there’s nothing that can be learned from American projects within living memory except what not to do.

    Low Spanish Costs are not About Decentralizationpedestrianobservations.com 3rd of 4 in this piece

    America

  8. A single case study can lead to overlearning from the peculiarities of one place, where the right thing to do is look at a number of successes and look at what is common to all of them.

    Low Spanish Costs are not About Decentralizationpedestrianobservations.com 4th of 4 in this piece

  9. 6 months earlier
  10. In fact, even though growth in average infrastructure costs over time is documented, there is very little cross-national correlation between GDP per capita and per-km subway construction costs.

    Meme Weeding: High Wages and Baumol's Cost Diseasepedestrianobservations.com 1st of 4 in this piece

    infrastructure

  11. It’s not that the Anglosphere is rich; it’s that it’s the Anglosphere and builds inefficiently.

    Meme Weeding: High Wages and Baumol's Cost Diseasepedestrianobservations.com 2nd of 4 in this piece

    infrastructure

  12. Well, we’ve divided the New York cost premium into three tranches: labor (mostly overstaffing, not high wages), station and system design, and procurement and soft costs.

    Meme Weeding: High Wages and Baumol's Cost Diseasepedestrianobservations.com 3rd of 4 in this piece

    design

  13. It’s turned entire countries, like the United Kingdom, incapable of building more than about one line per generation.

    Meme Weeding: High Wages and Baumol's Cost Diseasepedestrianobservations.com 4th of 4 in this piece

    infrastructure

  14. 11 months earlier
  15. You can’t change the United States from a country that builds subways for $2 billion/km in New York and $1 billion/km elsewhere to a country that does so for $200 million/km if all you ever do is talk to other Americans.

    Pete Buttigieg, Bent Flyvbjerg, and My Pessimism About American Costspedestrianobservations.com

    America

  16. 7 months earlier
  17. In fact, the worst cost blowouts are for the politically most certain projects; Second Avenue Subway enjoyed unanimous support in New York politics.

    High Costs are not About Precaritypedestrianobservations.com 1st of 5 in this piece

    politics

  18. Our best explanation is that the UK adopted what we call the globalized system of procurement, privatizing planning functions to consultants and privatizing risk to contractors, which creates more conflict; the UK also has an unusually high soft cost factor.

    High Costs are not About Precaritypedestrianobservations.com 2nd of 5 in this piece

  19. This is not about precarity, because this is not a precarious project; this is about total ignorance and incuriosity about best practices, which emanate from a place that doesn’t natively speak English and doesn’t trade in American political references.

    High Costs are not About Precaritypedestrianobservations.com 3rd of 5 in this piece

    America

  20. Importantly, low-cost countries with more clientelism and politicization of the state tend to be more deferential to the expertise of engineers.

    High Costs are not About Precaritypedestrianobservations.com 4th of 5 in this piece

    America

  21. Just giving more support to agencies in their current configuration is not going to help. To the contrary, it only confirms that profligacy gets rewarded.

    High Costs are not About Precaritypedestrianobservations.com 5th of 5 in this piece