Regarding my earlier post about light rail, I learned the proper name for a self-propelled passenger rail car. "Doodlebug."
To make them competitive with buses, though, I still think you'd need to make the rail gauge 7' or so instead of the standard gauge of 4' 8.5". Again, the chief driver of the weight of a rail carriage is the need to keep the center of mass/force between the rails, so a wider gauge allows lighter weight, better stability, higher speed, less vibration, and more.
Aussie stupdity quotage. - I like Australia. It is warm (and that is always attractive in a Southern winter) than New Zealand, richer than New Zealand, and they made Aussie Rules. Yo...
6 hours ago