Today Flora Roumpani presents her work on urban modelling using City Engine. Anders Johansson, Kiril Stanilov and Pete Ferguson all present today and tomorrow Vassilis Zachariasis presents. Big CASA presence at this meeting.This is the third meeting in this series organised by the Martin Centre in Cambridge. I presented an introductory talk on Urban Modelling yesterday which focussed on how the field evolved and how it is being stretched now by Big Data. You can get my talk by clicking here.