3 ms·

It really doesn't seem practical though. Instead of a 20 minute metro trip to the other side of town, you're looking at a 2 hour ride...

• zardo 4y ago
  No the article says it's a 20 minute ride to the other side of the city. Next you're going to say that a sky bridge 300m above the ground with a shin high guard rail is impractical.
  • divbzero 4y ago
    As described in OP: > A transport system running the length of the megastructure would be designed to connect both ends of the city within 20 minutes. It would take a 500 km/h train to cover 170 km in 20 minutes. I think only maglevs [1] approach that speed. [1]: https://en.wikipedia.org/wiki/Maglev https://en.wikipedia.org/wiki/Maglev
    • ncmncm 4y ago
      It would take more than 20 minutes if it had to stop in the middle. So, I guess it stops only at the ends?
      • divbzero 4y ago
        I suppose so? The Shanghai maglev train [2] might be the only high-speed maglev in operation [3]. The train has a cruising speed of 431 km/h, but averages 250 km/h in actual operation — covering 30 km in 8 minutes with no stops in the middle. [2]: https://en.wikipedia.org/wiki/Shanghai_maglev_train https://en.wikipedia.org/wiki/Shanghai_maglev_train [3]: Maglevs in Beijing, Changsha, Incheon, and Aichi Prefecture all operate at ~100 km/h or less.