[Ghostscale]

Any ideas how this is done? Is it thru DCC or is there an under-track sorta system?

http://www.youtube.com/watch?v=MrHp0CiQsBY&feature=player_embedded

 

[T-Man]

Something called an N scale Faller system. Faller being a german company.

[shaygetz]

There is a wire under the roadbed that guides a magnet attached to the steering mech...onboard electronics take care of the rest.