Discussion about Florida passenger rail operations including proposals. Official web-sites:
Miami/Dade Metrorail, Sunrail (Orlando), and Tri-County Commuter Rail Authority
For Virgin Rail/Brightline: Virgin Trains Worldwide (includes Brightline)

Moderator: Kurt-Trirail

  by RRspatch
west point wrote: Wed Jul 15, 2020 12:18 pm I notice a few comments about monorail slow. How many others have ridden a monorail. There is a historic problem with monorails that has never been solved. Monorails above 30 - 35 MPH are dynamically unstable. That is they will shake them selves apart at those speeds. That is why Disney limits theirs to 25 MPH. Research has shown that active controls can dampen the unstable but what happens if it fails at high speed ? To get an idea of the cost the F-16 has active controls that almost double the cost of the aircraft.
Sao Paulo in Brazil has two monorail lines as part of it's rapid transit network. Below is a video shot from the head-end of a monorail train on line 15 -


I'm guessing 30 to 40 mph

Map of the Sao Paulo system -