The talk can be watched here.
If you interested in pedestrian modelling and software the papers by Christian Castle might be of interest:
Castle, C.J.E. (2007), Guidelines for Assessing Pedestrian Evacuation Software Applications, Centre for Advanced Spatial Analysis (
Castle, C.J.E. and Longley, P.A. (2008), 'Emergency Pedestrian Evacuation Analysis: A Review and Interpretation of Software Applications', in Sui, D.Z. and Cutter, S.L. (eds.), Geospatial Technologies and Homeland Security: Research Frontiers and Challenges, Springer,