But its not like the Japanese model can't be applied area-by-area. No one's asking you to connect Austin to NYC but Houston roads look like this and there's still not one commuter railpic.twitter.com/GcgXOF6hW7
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ngl that kind of stop spacing is a bit too close imo, half-mile minimum is a good rule of thumb
In Manhattan, they're every 4, but then the express is every 25, so...
right, but even where the stop spacing is adequate, you still want to have local/express variations in service
Of course, that requires digging 4 tunnels, which is really expensive unless you're doing cut-and-cover and also requires a rather wide right-of-way.
you can run four tracks in a single tunnel if you're so inclined, and there's no rule stipulating that such a thing must be underground, but more to the point: you can run high frequency express and local service variants on a two-track line if a few stations on it have 4 tracks
heck, the stations part is optional if the overall line isn't too long
That's basically called Caltrain and that exact service pattern coupled with the state banning level boarding for wheelchairs was why I had a 52 minute gap between trains in the mornings.
wait wait wait Cali BANNED high platforms?
but regardless I'm not talking about how C*ltrain fucks things up I'm talking about actual high frequency service on a mixed service pattern on a mostly-or-entirely two-track line, which I have observed in Japan
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