Please, Please make a train script, this would be an epic addition to City RP (Or even observation seats in Bloko Raceway) Or even better, GSFCity maps.
Get the Patrolbot script, change the Bot model with mounts (Like the horse to avoid engine changes) And make it so you can set a path like the Blockhead form, but you can mount, stop it with commands and make it able to patrol up in the air, and then you can make a track out of bricks for effect, and even make a train mode for it (Or make a Hover taxi)
Even better, make it so that if somebody gets in the way of the train in a minigame (Or CityRP) they'll get killed, and if they drop money in CityRP, who would dare to pick them up?
And hell, an aircraft model would be epic for automated airports aswell.
And to show this is a neat idea, ever wondered what GSF New York would be like with a train?
No more nagging for noobs who say "WHEN IS TREAN COMIN!!!" or "WHEN IS AEROPLAN COMIN!!!!"""$07547", i guess.

And also, it would be nice if there was a GUI to change it's speed, if The Planets 2.0 comes out then.. Yay space taxis :D