100 trucks running right up next to each other is a train. I could imagine train operators converting their right of ways to a system where each train car can be autonomous and can leave the train and track without disruption. As the train comes by an exit ___location (station), the cars that need to get off just come out of the train and leave while the train tightens up again for aerodynamic efficiency and continues on without even slowing down.
These single tracks could even allow individuals to run their own single/double cars on them if the track was not to crowded and premium price was paid. With automatic vehicles, a reality on such controlled tracks today, our current infrastructure for transportation is definitely a failure compared to what it could be.
I don't see that happening. Train cars are incredibly simple things that have barely changed in many decades, probably because it's hard to introduce changes when all the cars need to be compatible with one another. Train cars don't even have electrical hook-ups, just air brake lines.
True for freight, but not true across for all rail. High speed rail in particular is usually a different gauge and has electric hookups for all cars, because every wheel needs to be driven to hit those speeds.
These single tracks could even allow individuals to run their own single/double cars on them if the track was not to crowded and premium price was paid. With automatic vehicles, a reality on such controlled tracks today, our current infrastructure for transportation is definitely a failure compared to what it could be.