Sorry if this has already been addressed, but has any kind of light rail or subway system been confirmed? Or are buses and taxis the only form of public transport?
The light rail has been confirmed (see the shot below, from the official CNT teaser). Same for freight trains. We've seen subway entrances (and some ominous lines on the blueprint map), so that's likely as well. But we haven't been able to map the complete network yet.
On the map below, the passenger line is green and the freight line is red.