Algodoo

Concept of a train that will never need to stop at stations to pick up passengers.
As train approaches station it slows down to Approximately 10m/s (35 Kph) where the secondary train will slow down to "Land" at the station, whilst the other secondary train speed up to board the still moving primary train.
Once clear of the station, the primary train will speed up to full speed with secondary train locked in place ready to "Land" at the next station.


Based of of the Chinese concept train
http://www.youtube.com/watch?v=DIeRrU4_M3Q