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arjie • yesterday at 3:31 PM • 3 replies • view on HN

You need some combination of high-ridership and low-personnel-cost. You can get that in most of Europe and Asia, but incomes in North America are quite high and labour capture is high too. Most jurisdictions cannot afford the drivers necessary at high frequency because there isn’t enough density for it.

Skytrain bypasses this by not having drivers and perhaps as buses become AVs we could add many more of them here in the Bay Area with much higher frequency.


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throw0101c • yesterday at 5:23 PM

> You need some combination of high-ridership and low-personnel-cost.

Driverless (GoA3) and completely unattended (GoA4) rail operation is possible, which could help with personnel costs:

* https://en.wikipedia.org/wiki/Automatic_train_operation

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buuyytp • yesterday at 3:36 PM

You could do it in most American cities. You would need to remove car infrastructure to do it. Bus Rapid Transit with protected lanes and median platforms along major arterials is a method most American cities could absolutely support. Some cities might be a stretch, Houston's nightmare sprawl for instance. But I'd put money on it being feasible in 70-80% of cities.

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joe_the_user • yesterday at 3:38 PM

No you don't.

You need a state or other body committed to fixed routs and seeing their long term benefit. The American ideology that public transit must directly support itself with revenue is what has resulted the miserable transit system that we see today.

Edit: I should add that the ideology of transit supporting itself also corrodes the key idea of fixed, scheduled routs, high-lighted in the article. I know in the US that even if a town I'm happens to currently have a decent public transit system (an occasional though uncommon occurrence) I know it will be crap in a couple years as revenues fluctuate since local transit is a political football, so I'd never count on public by selling my car or other decisions.

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