content: FTFA:  Far-less invasive and simpler infrastructure meaning they won't interfere with other ground travel like trains. So the infrastructure is easier to build and place than train tracks which require much more work to lay out since you don't have a 500-ton train moving along it, you have a 1-ton (probably less) tram car.  That also means side loops could easily be built to allow entry and exit to more places based on intended destination without interfering with other cars' travel. Individual cars could be produced and added quickly based on demand without a massive hit to scheduling. In the event of some disaster like a rail failure, it won't require a mile before the tram car stops, so no massive death toll and collateral damage from derailments.