Category Archives: Flows, Fluxes

About Networks, Flow Volumes, Graphs and Process Dynamics

Simulating Infectious Diseases in Large Cities

Posted on January 19, 2012 by Michael Batty

We published quite a high profile paper this week in The Lancet Infectious Diseases. Anders Johansson, myself and colleagues wrote a speculative paper on how to generalise the dynamics of SIR (spatial epidemics) models from pedestrian crowding models as part … Continue reading →

Posted in Agent-Based Models, Flows, Fluxes, Simulation, Uncategorized | Leave a comment

Visualising the Flow of Debt

Posted on November 19, 2011 by Michael Batty

Topical visualisations of flows: so simple, so effective. How we can visualise the flow of debt in the west between countries by the BBC  and even better by the New York Times which introduces scenarios about future flows, reflecting contagion, phase … Continue reading →

Posted in Design, Flows, Fluxes, Networks, SpatialInteraction | Leave a comment

BitCity

Posted on November 3, 2011 by Michael Batty

BitCity tomorrow (3rd November) at Columbia (NYC). Click left for my presentation on Cities as Flow Systems. Talks about CASA’s Oyster Card, Bikes, Networks, and LUTI model projects and how they can be used to look at fractured networks. Thanks … Continue reading →

Posted in Flows, Fluxes, Networks, Smart Cities, Transport | Leave a comment

Ravenstein’s Flow Map

Posted on October 29, 2011 by Michael Batty

Amazing what you discover when you search the web. Couldn’t find Ravenstein’s 1888 map that Waldo Tobler sent me as a detailed scan. Its framed in my room at UCL and somewhere on the web I know. What I did … Continue reading →

Posted in Flows, Fluxes, Networks, SpatialInteraction | Leave a comment

Ranks of Flows: Network Scaling

Posted on August 7, 2011 by Michael Batty

The TfL Oyster Card Tube and Train flow volumes over 24 hrs at 666 (don’t worry about the number) hubs reveal classic diurnal peaks but the profiles are far from power laws. If anything, they are lognormal. Watch the Vimeo Clip. … Continue reading →

Posted in Flows, Fluxes, Networks, Social Physics, Transport, Uncategorized | Leave a comment