NYC Subway Was Delayed by 1930s Signals. A Fix Is Finally Coming Posted by dsgerard on Monday September 23, 2019 @09:28AM from the nytimes.com dept. https://www.nytimes.com/2019/09/23/nyregion/nyc-mta-subway-signals.html ( 1 comment | 3 points | on HN )
15 years ago China built the 19 mile Shanghai maglev for $1.3 billion. Top speed is 268 mph.
https://en.wikipedia.org/wiki/Shanghai_maglev_train