Heh, what I had imagined in my own little scifi vision of the future was a hub system. Everybody gets their own little single seat self driving car pod thing that drives you to the train station. But here's the twist, instead of getting out and boarding the train the pod just drives up and latches in. You're then whisked away in the comfort of your own personalized vehicle, which automatically undocks at the appropriate station and delivers you to your workplace.