I think this is a really neat idea. Imagine cars arranging themselves and coupling into a train and then seamlessly decoupling as they need to exit. That would

I think this is a really neat idea. Imagine cars arranging themselves and coupling into a train and then seamlessly decoupling as they need to exit. That would save energy (air resistance) and be a more efficient way to move more cars down the same piece of road faster. It also removes the lost time of intermodal transportation. No idea if it's practical.