Organised by Ecole Polytechnique Federal de Lausanne (EPFL). Press release here. Emphasis on efficiency and reducing congestion rather than sustainability – often but not always the same thing, of course. On the other hand, an explicit focus on ICT. Lots of interesting snippets and names.
Interesting too, that for the kinds of people taking part, ensuring inter-operability and data sharing between different applications and silos necessarily means ‘centralisation’ of the data; one minute the whole open source, open data, mash-up thing seems to be the common sense of the age, and the next you run into this kind of thinking.