It is rather pathetic that in the first year of operation, 1967, the shinkansen achieved speeds of 137 mph while here in the US 45+ years later, we have yet to approach this average speed on our fastest line (Northeast corridor).
Admittedly, Japan benefited from a dedicated, grade-separated track, and new-build greenfield infrastructure that made efficiency and continuous improvement possible. As well as concentrated population centers with good local feeder public transport systems that could support expensive high speed rail. And ownership of the rails that allowed them to route and sequence traffic in a predictable and orderly way.
Ok, I admit that's a lot of favorable conditions that helped.
But still, you come back home to the US and wonder how we are still #1 with such shitty, shitty public transport systems, and public policymakers who care so little / are clueless about what it takes.
You take the shinkansen in Japan, or even a suburban line in Munich for that matter, and you have such a fast, quiet, vibration-free ride that you come back embarrassed about USA infrastructure. Try to take public transport to your flight at La Guardia, or the Amtrak Coast Starlight (SFO-LAX, which sometimes involves a bus), or the Boston Green Line squealing like a pig under Park Street like it's being tortured, or run away from the Chicago CTA crashing into O'Hare, and you get a sense of what it's like to be in last place among first world countries. Or for that matter, Chicago selling off it's public street parking infrastructure for 99 fucking years to the highest bidder. What moron was in charge of that one? I would hardly bet on what 5 years from now looks like, and they sold it off for 99 years.
It makes you disappointed in how dim is our current shadow of the earlier greatness that built this country.