This is just a set of ideas I had for where the county could REALLY use some high volume passenger rail service. The extensions to Metrorail directly should be on the same heavy rail system, as should the Okeechobee Line that goes up into southern Broward County.
I’m thinking the loop lines that go through the suburbs should be something like the Mitsubishi Heavy Industries Crystal Mover trains, since those can make tighter turns and are quieter. They run on a guideway built not entirely unlike a little freeway ramp (rubber tired trains) – the MIA Mover and several other people mover systems inside the airport already use them. And if MIA can’t kill them, nobody else can either 😉