Not really an uncertainty as the key word indicates, but for those working on scenario planning it may provide some inspiration on uncertainty regarding forms of transportation, urbanisation, city life development, technology etc.
“Straddling” bus–a cheaper, greener and faster alternative to commute
A big concern on top of urban transportation planner’s mind is how to speed up the traffic: putting more buses on the road will jam the roads even worse and deteriorate the air; building more subway is costly and time consuming. Well, here is an cheaper, greener and fast alternative to lighten their mind up a bit: the straddling bus, first exhibited on the 13th Beijing International High-tech Expo in May this year. In the near future, the model is to be put into pilot use in Beijing’s Mentougou District (bjnews). (The official site of the high-tech expo put it as 3D fast bus, which I think is more confusing, for now I’ll just call it the straddling bus.)
Read the whole article at: http://www.chinahush.com/2010/07/31/straddling-bus-a-cheaper-greener-and-faster-alternative-to-commute/