[jeroen]

Paris has great public transport. This is the subway (metro) map: http://media-cache-ec0.pinimg.com/originals/12/56/aa/1256aa0...

The numbers are subways, the letters are trains. There are busses too, but I never use them. And there are rental bikes in the streets: http://en.wikipedia.org/wiki/V%C3%A9lib%27

I don't think Paris needs shadow transit.

[masklinn]

> There are busses too, but I never use them.

Don't forget the trams above ground too (6 lines running, 4 more planned).

The official public transport organ has a (flash :() map which you can switch between rail (trains, subways and trams), day bus and night bus: http://www.ratp.fr/plan-interactif/carteidf.php