What if you combined a tram with a train? Oh wait, they already did: https://en.wikipedia.org/wiki/Tram-train https://en.wikipedia.org/wiki/Tram-train Or do

What if you combined a tram with a train? Oh wait, they already did: https://en.wikipedia.org/wiki/Tram-train https://en.wikipedia.org/wiki/Tram-train Or do what actually happens in cities, namely hub'n'spoke: tram lines to each city's central station, high-speed/capacity lines between cities.